Shocking! Why did it take 7 months to fix this BMW?

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  • Опубліковано 21 вер 2024
  • In this video we diagnose a Bmw x5 Hybrid with a start/stop issue.
    We learn that it's super important that we familiarize ourselfes with the system we are working on! The car was diagnosed by the dealership and an independent workshop for this problem and a battery was replaced, but the issue was still there.
    Can we Diagnose it together?
    Enjoy the video!
    Check out my website ; www.diagnoseda...
    For the Topdon tool used in the video:
    US:www.topdon.us/....
    UK: www.diagnostic...
    EU: eu.topdon.com/....
    For business inquiries ( not for technical questions); Diagnosedan@gmail.com

КОМЕНТАРІ • 1,7 тис.

  • @Diagnosedan
    @Diagnosedan  11 місяців тому +27

    Check out my website ; www.diagnosedan.com
    For the Topdon tool used in the video:
    US:www.topdon.us/collections/pro...
    UK: www.diagnosticconnections.co.uk/
    EU: eu.topdon.com/products/phoeni...
    For business inquiries ( not for technical questions); Diagnosedan@gmail.com

    • @the1beard
      @the1beard 11 місяців тому

      None of the links gets to a working page ...

    • @robertshaughnessy6254
      @robertshaughnessy6254 11 місяців тому +1

      I had no luck either.

    • @barryseaton3121
      @barryseaton3121 11 місяців тому +1

      In a sense old fashioned reasoning in a world where almost everyone's minds are coloured by the supposed modern. Well done.

    • @ophirb25
      @ophirb25 11 місяців тому +2

      Thanks for another great diagnosis.
      Always pleasure to see your way of thinking and logical step by step tests to get to the root cause.
      👑👑👑

    • @WladyslawAntonsiewicz9627
      @WladyslawAntonsiewicz9627 11 місяців тому

      I love the mistakes at the end 😂😂.
      This reminds me of myself asking about another video, what if we power off the electric motor in the car, crank the engine and drive. I guess it was the VWagen which had the fault where the parking light was blinking...

  • @misa000
    @misa000 11 місяців тому +85

    I work 9 hours in the workshop. At the end of the day I still enjoy looking under the hood with Dan .
    Thank you for keeping it logical and simple .
    More diagnostics please 👍🙏🏽

  • @red95gts
    @red95gts 11 місяців тому +34

    I can’t believe the dealer and an independent mechanic couldn’t figure that out. The code points you right to the problem. Well done Dan!

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +2

      Thanks for watching

    • @stephenw2992
      @stephenw2992 11 місяців тому +2

      It literally says it has a starter motor so no excuses for whoever looked at it.

    • @damiann4734
      @damiann4734 7 місяців тому

      Exaggeration and some bullshit of a video lol

  • @htownblue11
    @htownblue11 11 місяців тому +61

    The more things get complicated the more they stay the same in some circumstances….. Great diagnosis Dan.

  • @brianeno1062
    @brianeno1062 11 місяців тому +117

    It is appalling to me that if the dealership can't diagnose a fault they start replacing parts at will on the customer's cost, even if those very parts don't fix the fault.

    • @madds6678
      @madds6678 11 місяців тому +5

      How do you know the battery wasn’t faulty & needed one fitted first before c/o further tests & that the customer didn’t want to pay for further tests

    • @EmilysDadd
      @EmilysDadd 11 місяців тому

      but the new battery didn't fix the original fault! And if they'd tested the car before they'd handed it back, they'd have known it wasn't fixed.@@madds6678

    • @brianeno1062
      @brianeno1062 11 місяців тому +14

      @@madds6678 Do you think one very speccific case proves my point invalid? Whether you are a dealer or a customer, you must admit, that customers often get taken advantage of. "Stealership" was not invented for no reason.

    • @paulwoods7857
      @paulwoods7857 11 місяців тому +8

      ​@@madds6678was the stop start battery tested? Was the 12v starter motor tested? Seems to me they gave up too easily

    • @rimmersbryggeri
      @rimmersbryggeri 11 місяців тому +6

      @@paulwoods7857 I agree especially for such a new car and considering the DTC mentioned the belt driven starter.

  • @igotaction
    @igotaction 11 місяців тому +35

    Diagnose Dan + a BMW = the best part of my week!! You the man Dan!

    • @wholeNwon
      @wholeNwon 11 місяців тому +2

      Or any example of German "engineering".

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Thank you very much!

  • @garethedwards2883
    @garethedwards2883 11 місяців тому +18

    That takes me back many years in giving the solenoid a whack to try and bring it to life, cheers Dan.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +5

      It works sometimes 😂

  • @tysimon
    @tysimon 11 місяців тому +17

    You and South Main Auto are two pearls of the YT diagnose world, keep on doing it !

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +3

      Eric is a great tech and absolutely worth watching.

    • @mandytuning
      @mandytuning 5 місяців тому +1

      Also pine hollow diagnostic, automotive diagnostic & programming,advance level diagnostic, there are many talents out there

  • @AndrewKNI
    @AndrewKNI 11 місяців тому +26

    Disappointing that a 'BMW trained' mechanic couldn't resolve this at the dealership. Well done Dan, you did it again! Fantastic bloopers by the way 🙂

    • @rl3898
      @rl3898 11 місяців тому

      More than disappointing... managers should be sacked for inadequate supervision and training !!

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Yes alot of bloopers this time🤣

    • @-robster-robster-
      @-robster-robster- 11 місяців тому +1

      Not enough staff/ time , no one wants to be a mechanic anymore. My rwd 2019 crafter van was in for egr cooler module. Was an engine and gbox drop job . Took them 6 months . I was furious . They kept putting it back for servicing , pdi and tyre work. I would have done it myself if i had ramps and it wernt warranty. Daft wee laddies want to kid on with their career . Its a ticking timebomb where cars are progressing but the skillset and attitude to put in the effort is waining

    • @AndrewKNI
      @AndrewKNI 11 місяців тому

      @@-robster-robster- Yes, seems to be a problem everywhere. There are massive supply issues worldwide plus the skills and attitude issues you mentioned. Your experience is a bad one for sure. 6 months is shocking.

  • @repairingmaster
    @repairingmaster 11 місяців тому +77

    Marvelous diagnosis, Dan. Can't believe that the dealership was satisfied with only battery replacement and didn't test further. I really liked the hammer testing of the solenoid. The 12V sort of classic starter motor makes sense how you explained but complicates things. Keep up the good work, we are loving your videos. Thanks

    • @delijasasevera2212
      @delijasasevera2212 11 місяців тому +4

      Owner shouldn't play dealership for just replacement of the battery. If it didn't fix the issue they should be the ones that take the cost.

    • @leiflillandt1488
      @leiflillandt1488 11 місяців тому +4

      ​@@delijasasevera2212My experience from only two X3s, 2008 and 2011, is that the original batteries last 12-14 years, and about 250,000 km. Quite good, isn't it?

    • @davidorama6690
      @davidorama6690 11 місяців тому +6

      I suppose the dealer simply ignored the stated motor fault code and didn’t wonder why there wasn’t an auxiliary battery fault code. Shoddy work BmW.

    • @madds6678
      @madds6678 11 місяців тому +1

      @@delijasasevera2212 No they shouldn’t, you don’t know that the auxiliary battery wasn’t faulty neither does Dan & at the mileage & age I wouldn’t at all be surprised to find it faulty, should they have also diagnosed a starter yes but the customer may have refused further diagnosis or lost faith not allowing them to c/o further checks, perhaps the independent should pay for it as they too couldn’t fix either, ultimately the customer owns the problem not the garage if we worked to your ideology we’d pay for everything & be broke.

    • @CrazyCat229
      @CrazyCat229 11 місяців тому +3

      The owner probably didnt want to pay for more diag time. 99% of the time its the owner that shuts down the diag process. I had a guy that installed a big sound system in his gf miata for her. Blew a bunch of fuses becasue somthing was wired incorrectly by him. That's the only diag he watned to pay me to do so I replaced the fuses and he went on his way, even though I asked if he wanted me to find out why the fuses were blown. Came back a few days later with more blown fuses yelling and cussing at me. Most customers are like this. Sorry, you have to pay for the diag + the labor to fix it we dont get paid hourly. Diag for me is 30 min = half hour labor. He wanted to cheap out thats his problem. Just to get to the point of the blown fuse. It was a rather large fuse on the ecu took awhile to test was not a simple one in the fuse box.

  • @MMAunderbelly
    @MMAunderbelly 11 місяців тому +15

    One of my fav automotive diag channels. Wish you made more frequent videos but I understand the real world lol

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      I trie as hard as i can👍

  • @PineHollowAutoDiagnostics
    @PineHollowAutoDiagnostics 11 місяців тому +38

    Great diagnosis, Dan! First time I see a starter motor driving a timing belt haha
    I've seen premature starter failures recently, mostly in Subaru and Honda cars. Maybe Denso quality is getting worse :(

    • @calholli
      @calholli 11 місяців тому +4

      First time for me too; only the Germans could dream up such a contraption. :) .. I bet it's there to add longevity to the main EV motor, since it has the "start/stop" system. This way, all that repeated starting wear can go towards the easily replaceable starter motor instead of killing the expensive EV motor. Good idea after bad

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +4

      I see a trend in recent years, even the quality of the big brands is getting worse. Sometimes you just dont know what brand to fit. For this Starter motor we dont really have a choice, it's only available from the Dealership. That said, they can't even supply me with one. The starter motor is on backorder, i've been waiting for 3 weeks now and the car is still waiting for parts😪

    • @benjaminekhalia7218
      @benjaminekhalia7218 11 місяців тому

      That's too bad, I guess in this part of the world it may take about a year in that case😂

    • @KaranenMetal
      @KaranenMetal 11 місяців тому +2

      I've recently seen a brand new Denso alternator that was defective on a Honda. It got me to double check my diagnosis as it surprised me.

    • @stephenw2992
      @stephenw2992 11 місяців тому +1

      I thought this was going to be dodgy German electrics for sure. Not good when you cant even trust the Japanese parts.

  • @tim0025
    @tim0025 11 місяців тому +11

    Dan is not only a good electrician/diagnostician, but also a skilled mechanic!

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +2

      In my country there is not really a difference, one guy does it all😂

    • @winstonsmith1143
      @winstonsmith1143 10 місяців тому

      ​@@Diagnosedanmorning Don my e90 give me this code 2a2d

    • @winstonsmith1143
      @winstonsmith1143 10 місяців тому

      You can send me a number please are you in the US 🇺🇸

  • @ceesklumper
    @ceesklumper 11 місяців тому +11

    Always a highlight of the day, going on a diagnosing journey with Master Dan

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      We did it together 💪👊

  • @lovetolearn5253
    @lovetolearn5253 Місяць тому

    I'm I the only person that thinks that start stop system is stupid in none hybrid models. This channel and scanner Danner are the best educational automotive channels on UA-cam.

  • @Shopaddict23250
    @Shopaddict23250 11 місяців тому +345

    When the dealer can't fix their own cars, you know they're too complicated.

    • @TomWishaupt
      @TomWishaupt 11 місяців тому +119

      No, you know dealers are fucking incompetent. That's my experience.

    • @maverickelbow50
      @maverickelbow50 11 місяців тому +5

      Seems to me the dealers have to make their money somewhere

    • @vojvoda9060
      @vojvoda9060 11 місяців тому +30

      No,they have BAD mechanicker....🤮🤮🤮🤮🤮
      My experience.

    • @JustMe-Dude
      @JustMe-Dude 11 місяців тому +20

      first rule of book rate, mechanic repair scenario. plug-in diagnostic machine. read manufactures, approved repair. complete repair and read next step. next step says return to customer to see if issue persists. if issue persists go to step two of diagnosis. in the meantime, you don't get paid to do anything else. you have to have a customer complaint to enter into the diagnosis system to start getting paid again. move onto the next vehicle to repair and start getting paid.

    • @cbattman
      @cbattman 11 місяців тому +27

      And they don't pay and train their staff properly because it's a race to the skills bottom

  • @edwinlomonaco6754
    @edwinlomonaco6754 5 місяців тому

    Just the knowledge of how this system works is worth the watch.

  • @wirenchangoer2508
    @wirenchangoer2508 11 місяців тому +3

    So bad that the dealership couldn't find the cause of this problem. You just diagnosed it like a pro as always!

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Yes that was unfortunate

  • @MrWembley009
    @MrWembley009 4 місяці тому

    Moral of the story, keep your thoughts to a basic level, that could fix "big/complex" problems and as usual Dan is right when he said, "get to know how the system works", that's key to fix it!! Good job Dan!👍😎💯

  • @sajedb
    @sajedb 11 місяців тому +9

    The hammer trick on the starter never fails 😂😂.
    Good job as always Dan.

    • @leiflillandt1488
      @leiflillandt1488 11 місяців тому +1

      A friend of mine, shop owner, suggested to knock on head light washer motor instead of buying a new... and the trick solved the problem!
      Then in my 2011 X3 30d with 246,000 km after changing engine oil, the engine didn't want to start. Died after a couple of seconds.
      Lots of fault codes were to be found! One code caught my attention (it's a long story), the code that suggested that the EGR valve was got stuck.
      So I removed the plastic cover... Yes, it didn't move now.
      I didn't need a hammer this time... moving it by the fingers was enough. Then I was spraying some "oil" that should stand 300°C or something. It has worked perfectly ever since that means the summer.
      As you see even an amateur can solve problems, but you need some help from videos, discussion fora and friends, and then you need to be able to read the fault codes.

    • @NiddNetworks
      @NiddNetworks 11 місяців тому +1

      "percussive maintenance"!! aka give it a smack

    • @calholli
      @calholli 11 місяців тому +1

      @@NiddNetworks "kinetic adjustment"

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Only when trying to film it😂

  • @pontiacsrule8761
    @pontiacsrule8761 9 місяців тому

    This guy Dan has great trouble shooting skills. He really teaches you along the way. Great video camera work also. I like Dan's videos. He makes it looks so easy when it really isn't..

  • @scott-adams
    @scott-adams 11 місяців тому +24

    Another thorough, informative video. I had no idea that a BMW hybrid has a 12v starter. Another great example of knowing your enemy. If you don't know how it works, you can't fix it.
    Thanks, Dan!

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +2

      Exactly, sometimes we need to do some research on new systems or systems we dont see very often

  • @victor4837
    @victor4837 11 місяців тому +14

    Thanks, Dan, the video was very interesting! Usually there are two coils in the conventional starter relays - a main one (which moves the engagement mechanism and closes main contacts) and a "holding" one. It is very interesting if Denso used a conventional relay on this starter - in fact, there is no need to move any engagement parts there! I would not stop myself splitting apart that relay 🙂!

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      In some cases they want the old part back, and now i can still put it all back together 🤣

  • @WouterB76
    @WouterB76 11 місяців тому +5

    Just as with Eric O. You are the last but best resort.
    You'd make for a excellent teacher also!

  • @wyattoneable
    @wyattoneable 11 місяців тому +1

    Outstanding Dan! I really enjoy working together.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      I'm glad you were here to help😂

  • @michaelreeves8164
    @michaelreeves8164 11 місяців тому +3

    Another great diagnosis and fix. It is a little depressing that a company like BMW cannot find a problem like this seeing that it is their own vehicle. More videos please, you're the best.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      In all fairness i'm pretty sure that most Bmw technicians would have diagnosed it right the first time

  • @georgemoses2916
    @georgemoses2916 11 місяців тому +1

    This guy reminds me of my late brother-in-law only he work on jaguar cars for over 40 years before he passed one of best mechanics I've met.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      I'm sorry to hear about your brother in law.

  • @fredautos
    @fredautos 11 місяців тому +4

    Long time no See on UA-cam Dan!..
    I'm Extremely happy because I'll learn what a start/stop system is! Lets! go🎉

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Thanks for watching again

  • @mike-yp1uk
    @mike-yp1uk 2 місяці тому

    This is my second time watching this. It's fun watching a pro in action. This stuff is better than tv.

  • @VoteIndependent
    @VoteIndependent 11 місяців тому +9

    Great job, but I am puzzled as why to replace the whole starter instead of replacing the solenoid ( relay) alone?

    • @leiflillandt1488
      @leiflillandt1488 11 місяців тому

      I think you can't buy the parts anywhere in this case. Unfortunately.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +6

      We do that for waranty reasons, if customer comes back within a few weeks/Months with another part of the starter motor failing. The customer might claim (partial) waranty. If you are a DIY or when working on your personal car this is something you can try

  • @TimmyTheTool
    @TimmyTheTool 11 місяців тому +2

    I think the dealer should have known a 12v starter battery would include a separate motor other than the 3 phase HV MG unit. Main dealers never fail to amaze my. Well done Dan.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      Thanks for watching and taking the time to leave a comment its really appreciated

  • @Retirement_Life
    @Retirement_Life 11 місяців тому +21

    Another great diagnosis, Dan! 👏👏👏 You make it look so easy! 😜

    • @rexjames0015
      @rexjames0015 11 місяців тому

      yes too easy, set up dan.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      It not always is, in this case you really need to do some research and after that its quite easy to diagnose

    • @rexjames0015
      @rexjames0015 11 місяців тому

      @@Diagnosedan Rubbish, see my other comment
      "What bull, there is no way a BMW dealer would mis that fault.
      Even if the dealer were to fail which they would not then the technical assist line would have got the dealer over the line.
      The description of the fault is quite explicit."
      Self promotion!

  • @crazyrockstar2316
    @crazyrockstar2316 6 місяців тому

    My first video to understanding about start stop in hybrid really enjoyed

  • @ShakeYourNoobs
    @ShakeYourNoobs 11 місяців тому +10

    Very nice video. I am not a mechanic but I have a theory: Maybe the BMW engineers put a starter motor in case the hybrid system had an issue, so the car can still start

    • @MatrixTheme
      @MatrixTheme 11 місяців тому +1

      Yes but why it attempts to start the car first with 12v starter if this is there for as a backup?

    • @ShakeYourNoobs
      @ShakeYourNoobs 11 місяців тому +2

      @@MatrixTheme maybe because the big electric motor from the hybrid system draws a significant amount of power

    • @greebj
      @greebj 11 місяців тому +2

      I think maybe the nature of the hybrid drive being tacked on to a conventional engine just led to them deciding to leave the conventional system programming intact and just be passed the instruction from the ECU to "start", rather than engineering a different startup sequence.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Thats one of the benefits

  • @TheWaelabo02
    @TheWaelabo02 11 місяців тому +1

    Very smart and intelligent, Starter used when HV battery low and other main reason to save power consumption from HV battery when starting engine. I believe in some early hybrid, Honda uses it similar to this BMW, except it is not plug -in it called IMA...thank you sooooo much

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Thanks for the great comment

  • @AdeReeves
    @AdeReeves 11 місяців тому +16

    Another great video Dan .. love the way you work through these issues 👍

  • @sjonuzi
    @sjonuzi 11 місяців тому

    You are one of the top professionals in UA-cam !

  • @johncooper6246
    @johncooper6246 11 місяців тому +4

    I really appreciate your thorough diagnosis in checking continuity on ground and power. Moreover, as you know all vehicles rely on ground and was hoping that was the culprit. Nicely done there Dan!

  • @arthuraucar3696
    @arthuraucar3696 11 місяців тому +1

    In some cases, things aren't so complicated like we think..! Thanks again Dan..! Very informative video.

  • @M1LAD81
    @M1LAD81 11 місяців тому +8

    16:05 Another interesting and informative video, Dan. What a surprise.
    I suppose using a 12v starter motor means you could probably jump start it at least if the 12v battery was dead as well as the high voltage battery. And for our buddies over in the US, here the term HV AC is the High Voltage Alternating Current motor, not your residential HVAC motor! 😂
    Just poking fun, no offence!

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      Ah, yes hvac i didn't even realise it could mean something else😂

  • @lazardjordjevic994
    @lazardjordjevic994 11 місяців тому +1

    Our Dan is the best as always!

  • @HashiriyaSquadron
    @HashiriyaSquadron 11 місяців тому +9

    Great work Dan once again. I never knew they had a backup starter motor either! 👍

  • @PSMotorsVan
    @PSMotorsVan 3 місяці тому

    You should tag in the video F15 40e 21A515! I have been working on one of these all day looking for information on this code and this is exactly what I needed. Ours is a 2016, but we've replaced both batteries as they both tested bad, then we had three scan tools not have the option of "replace/recode auxillary battery* and the primary battery wouldn't register either. So after finally registering both batteries with ISTA with our laptop from 2010, test drove with the exact same code coming back. Took belt drive cover off to discover exact same issue.
    Thank you!

  • @gregjones8501
    @gregjones8501 11 місяців тому +3

    That’s some great detective work and you made that seem very easy! This is why I’m a dedicated watcher of your videos Dan! Thank you for sharing!

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      Thanks for watching my videos its really appreciated!

  • @voodoocars2134
    @voodoocars2134 6 місяців тому

    Old school hammer trick to get a starter motor to work. Priceless..

  • @TheWebbo1989
    @TheWebbo1989 11 місяців тому +3

    Having spent some time in the past overhauling starter and alternators - That was interesting in that the 'Pull' windings of the solenoid were open circuit but the 'Hold' winding was ok - maybe taking the cap off it would reveal it's failure ? Great diagnosis however and correct in what you say - understand the system to correctly diagnose it - well done

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      In some cases they want the old starter back, so i didn't want to pull it apart to far🤣

  • @1_D333
    @1_D333 11 місяців тому

    It's been quite a while now bmw engineers are praised again. They provide redundancy in the engine starting system to avoid the car being stranded and not only that, but they also use reputable supplier as well like denso. the one way crank pulley and the easy access for repair also adding up as cherry on top. just wow 😅. good job bmw. and thank you for Danny.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      Reputable brand but it still failed 😂

    • @1_D333
      @1_D333 11 місяців тому

      @@Diagnosedan hahaha 😂 bmw ordered the second quality

  • @agentstalin6333
    @agentstalin6333 11 місяців тому +8

    This was once again a great example of amazing knowledge and logic. Keep it up!

  • @Trump1776
    @Trump1776 11 місяців тому +1

    Priceless diagnosis video 👍🏻👍🏻

  • @DanNeb-w3e
    @DanNeb-w3e 11 місяців тому +3

    We are enjoying your content, Dan. we learn a lot, and we can't wait a month or so for new videos, even aless complicated issues are appreciated. Once a week is good, too.

  • @hybridsolutiondiagnostics
    @hybridsolutiondiagnostics 11 місяців тому +2

    Beautiful diagnostic as always Dan… well done 🫡🫡🚨🚨

  • @jasong7374
    @jasong7374 11 місяців тому +6

    I would love to see a follow up with this car, excellent though work and well explained, I learn so much from your videos, complex problems can be simple when proper technique is used, also something i do when testing starter systems, is to retest the battery from the starter, and compare the reading that I get from the battery test, showing up faults with the high amperage cables,if there is a fault present, thanks again for a great video

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Its my pleasure, i:m glad you liked the video

  • @970357ers
    @970357ers 11 місяців тому +1

    Diagnose Dan is the Don of Diagnosis!

  • @adammcallister2260
    @adammcallister2260 11 місяців тому +18

    Excellent work, Dan.
    As far as 12v starters go, I suppose it’s a point of failure but also a point of recovery. As you say, it won’t get stranded by the HV battery going flat, it also means any normal car can help jump start it if both batteries are flat (perhaps it’s been left for a number of weeks without charge). I don’t think a belt is the best way to go though. A chain would be better I think. No need to oil it since it would be doing little work.

    • @stevekelly5166
      @stevekelly5166 11 місяців тому +1

      "As you say, it won’t get stranded by the HV battery going flat, it also means any normal car can help jump start it if both batteries are flat"
      Unless the 12V starter didn't work, in this particular case.

    • @KB-mo3sx
      @KB-mo3sx 11 місяців тому +2

      @@stevekelly5166 It didn't but normally you would not drive for 6 months without working starter motor - redundancy is good and programmers did a good job implementing it. I have a similar issue regarding redundancy in my car (Skoda) - one of the modules does not see that the car is in park (broken switch) but since there are other sensors the car works just fine. In contrary I saw a clip form south main auto with the same issue in ford and the car would not start or lock the door even though the gearbox computer had good indication of shifter position.

    • @greebj
      @greebj 11 місяців тому +1

      The redundancy is great. A dealer service dept being unable to identify which of the 2 systems has failed, is not.

    • @maartendeen8404
      @maartendeen8404 11 місяців тому

      @@greebj If redundancy is great, why doesn't have every car two start motors? Two spark plugs per cilinder (some do), two separate fuel injection systems? Because it is expensive. And expensive does not sell cars.

    • @truth4reel
      @truth4reel 11 місяців тому +1

      The point still stands though in this case. Have you ever seen a Prius with a flat hybrid battery?

  • @johnmehaffey9953
    @johnmehaffey9953 11 місяців тому +1

    Brilliant as usual Dan, the way you keep up to date with technology is incredible so envious of your ability to diagnose,

  • @arni68a
    @arni68a 8 місяців тому

    Great diagnosis. Loved the end part. Just shows us subscribers how much effort you put into doing your uploads many thanks super Dan 👍🏼

  • @fir3w4lk3r
    @fir3w4lk3r 11 місяців тому +5

    It is a weird failure of the starter relay. I must have an increase in resistance for it being unable to initially attract the plunger. I am pretty sure you can only replace the solenoid though.

    • @alinduta5398
      @alinduta5398 11 місяців тому +1

      not only increase in resistance
      some kind of short or open in coil
      not enough magnetic field

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      There is a pull and a hold coil in that relay, the pull coil failed.
      We can't just replace the relay for waranty reasons. If another part of the Starter motor fails within a few weeks/Months the customer might claim ( partial) waranty. If you are a DIY or when working on your own car, its something that you can try

    • @fir3w4lk3r
      @fir3w4lk3r 11 місяців тому

      @@Diagnosedan That makes sense! Thanks you for your time explaining.

    • @tonyny708
      @tonyny708 9 місяців тому

      @@Diagnosedancan you purchase just the solenoid? Is it available ?

  • @cccspokesmanandcofounder
    @cccspokesmanandcofounder 11 місяців тому

    Always a good day when DiagDan drops a new video.

  • @nickmitton7350
    @nickmitton7350 11 місяців тому +3

    Love watching your videos Dan. I'm learning so much about the different systems fitted to new cars. Many thanks buddy 😎👍

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Its my pleasure, glad you liked it

  • @Hitman-ds1ei
    @Hitman-ds1ei 10 місяців тому

    Redundancy is the name of the game, product knowledge goes a long way and older models may not be in newer technicians repertoire, thorough diagnostic practices as you keep reinforcing are fundamental to success, also not being too pig headed to ask others for help helps too

  • @gjavo6400
    @gjavo6400 11 місяців тому +3

    Another great video Dan! I enjoyed that. Great presentation skills. Only thing I missed is you dismantle the relay/ solenoid to show what was wrong with it.

    • @johnnyblue4799
      @johnnyblue4799 11 місяців тому

      He's outsourcing that to Ivan, for a no parts required sequel.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      In some cases they want the old unit back and i didn't want to dismantle it to far😂

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      ​@@johnnyblue4799he hates working on Bmw😂

    • @johnnyblue4799
      @johnnyblue4799 11 місяців тому

      @@Diagnosedan That's why he needs more of them... to get used to working on Europe's finest cars.

  • @robmckean7531
    @robmckean7531 10 місяців тому

    DD is one smart tech . BMW replaced the auxiliary battery, and did not fix the problem.
    Logic and proper diagnostic steps did . Bravo Dan .

  • @OgunjobiDavid
    @OgunjobiDavid 11 місяців тому +5

    Wow. Been waiting ages for a video from you. Always love your diagnosis methods

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Ages........thats long😂

  • @hamidhaiertvbedroomtvhamid808
    @hamidhaiertvbedroomtvhamid808 11 місяців тому

    I work whole day in cars and attending some training but all those not make stop to watch your videos, your videos are so great 🎉wish to work with you to learn more from you.

  • @lolipopdeck3694
    @lolipopdeck3694 11 місяців тому +2

    Good to see you again dan
    Beautiful diagnosis as always

  • @jhauna1
    @jhauna1 11 місяців тому +3

    Yeah it’s been a while Dan🎉

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      One video every month for the last few years😊

  • @kozmaz87
    @kozmaz87 9 місяців тому

    It is a surprisingly smart system. It has failover lol. Nice. I mean it is surprising for nowadays when most consumer grade equipment fails outright instead of having failovers or any headroom built in anywhere.

  • @HelgiThorisson
    @HelgiThorisson 11 місяців тому +3

    The only hybrid vehicles that I have worked on do have a 12V starter. They have the starter at the rear of the engine so this might have escaped me if I was expecting to see a starter at the rear. Well done Dan.

    • @madds6678
      @madds6678 11 місяців тому

      Yep Mercedes have both

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Some have most don't

  • @russellhltn1396
    @russellhltn1396 11 місяців тому +1

    One possible advantage of the 12V starter is a gentler start. The first thing I noticed on the test drive was the engine went from zero to 3000 rpm, but then came down to 1000. Not the way I'd like to start an engine.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Thats one of the reasons

  • @2packs4sure
    @2packs4sure 11 місяців тому +3

    Guess you can't buy that solenoid by itself...

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      Nope

    • @-robster-robster-
      @-robster-robster- 11 місяців тому

      Not even from the hc cargo catalogue? Something like a part number
      2339303269. Must be something out there , i know it could be seen as bastardisation but also could have fitted an external solenoid as it doesnt throw a lever its basically just a mounted external solenoid. I would have tried this method as a temp test to see if it worked before ordering the full sheboodle. As there could be a bad connection not allowing enough current to energise the coil properly. . Unless the iron core was sticking to coil body.
      Anyway shame on the dealer not diagnosing a bad starter motor ... You pay peanuts, you get monkeys

    • @2packs4sure
      @2packs4sure 11 місяців тому

      Lol,, yeah I would have knocking myself out trying to find a workaround to replace JUST the solenoid !! @@-robster-robster-

  • @madds6678
    @madds6678 11 місяців тому +1

    Mercedes C & E class hybrids have both starter & e machine, been fixing this issue for years now not uncommon but yes many people caught out by this including a issue where the starter motor is not known to be faulty by the customer & is brought in for a engine software update & then, will not start as part of the immobiliser learning process is to start the engine via the starter, you then have the difficult conversation with the client explaining their starter requires replacing to which their refuse & state it started fine before it came to you so you own it. We now check every starter works before updating any software to protect ourselves.
    I believe the other reason it has both motors is when driving in electric mode then kicking down into engine drive you need to start the engine via the starter to ensure a smooth handover from one drive to another as there would be a difference in speeds causing a jerk in drive which can be felt & is the big give away to a n/w starter what most customers actually complain about a gearbox issue.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Thats one of the benefits of that 12V starter! Good thinking 👊

  • @alyjaabirbachoo5354
    @alyjaabirbachoo5354 11 місяців тому +1

    I believe the reason they put the additional starter motor it's to save the power consumption on the ev battery itself and also like you said it will help it to keep on starting even if the ev battery is dead

  • @Terost36
    @Terost36 11 місяців тому

    Great job in finding the cause. The other technicians aren't skilled like you are. We need DiagnoseDans in this world.

  • @toshayonguard4253
    @toshayonguard4253 11 місяців тому +2

    Love all your Videos Professor Dan…..Here in the USA that car would have already been sent to the Crusher…..BMW’s are overly complicated for no reason. And the only one’s who drive them are Twinky’s that have more money than Brain’s….I am so Glad I Retired as a Master Tech in 2018 and Bought a 1970 Chevelle SS for my self and bought my wife a 1966 fastback Mustang. And we are so happy with simple but Amazing Car’s. Keep up the Good work Dan your Generation needs more Technicians like you. 🤘🏼🇺🇸🇺🇸🇬🇧🇬🇧🇬🇧

    • @KB-mo3sx
      @KB-mo3sx 11 місяців тому

      In this case as you can see it might be overly complicated but redundant - if one system fails other takes it's place and the basic functionality is retained. Old cars are cool and reliable, but they consume more gas and are objectively less comfortable and way less safe in case of a crash. With all those systems new car becomes more complex and naturally less reliable. The diagnostic coverage is also much higher so you naturally get more errors since the same issue in the older car would not be detected at all.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      I embrace technology and hate every car without a 16 pin socket🤣 Modern cars bring challenges and keep the job interesting. I would hate to just change oil and adjust carburators😮 You might just as well start working in a factory and repeat the same job all day long.

  • @MrCrafter80
    @MrCrafter80 11 місяців тому +1

    Your miles ahead of others with your logic paths, I find it so helpful in this new system

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Its great to hear the videos are useful

  • @arnieboy2004
    @arnieboy2004 7 місяців тому

    Just found this channel, great to watch and learn....thanks Dan.

  • @jamesward5721
    @jamesward5721 11 місяців тому +1

    Being a welder & not a diagnostics guy, I see these for rear subframe repairs. Surprisingly new ones... The dealer repair quotes for rear subframe corrosion are beyond eye-watering - I repair them pretty cheaply (very cheaply) by comparison. Interesting to see this diagnosis - but I'll stick to welding on them, because sod all nobody else wants to. :-)

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      Great job, more work for you than 😊

  • @wysetech2000
    @wysetech2000 11 місяців тому

    Diagnose Dan, Does it again and again and again!

  • @OneIdeaTooMany
    @OneIdeaTooMany 11 місяців тому +2

    I have seen this exact issue but I can almost guarantee it took me much longer to figure out and I definitely didn't go to the same lengths to really narrow it down like you did. I hate working on BMW's.. when they go wrong, they tend to go spectacularly wrong.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +2

      I guess you say "hate" because you dont see them very often and have poor accessibility to technical information and parts.

  • @claytonolive5416
    @claytonolive5416 11 місяців тому

    This shows that the biggest issue is alot of people dont slow down and look at the information they have in front of them . Nice work

  • @jonathansirimarco6215
    @jonathansirimarco6215 11 місяців тому

    Greetings from Argentina, thank you for sharing your diagnostic cases, you are the one in this .🚗🏎️🛻
    big hug 🤗

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Thank you Argentina😁👍

  • @tomengineer1467
    @tomengineer1467 11 місяців тому +1

    Hi Dan …. Been watching you for years from uk ….. always good to see a master at work and master of his trade … keep up the excellent work

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Thanks for watching my videos for all these years, you have no idea how much this is appreciated

  • @rodmaclean6862
    @rodmaclean6862 11 місяців тому +1

    Dan, great content, modern day car are getting so complicated, they need Dan the man to fix them!!

  • @jonka1
    @jonka1 11 місяців тому +1

    The solenoid has two windings. One heavy one to pull it in and a lighter one to hold it when the motor is running. The heavy winding is open.

  • @martineztmt8523
    @martineztmt8523 11 місяців тому +2

    A lot of fault finding work for a relatively simple piece, but one that has a big impact it seems. Good luck Dan and to as many "healed patients" as possible 🇷🇴

  • @jamesphilemon8010
    @jamesphilemon8010 11 місяців тому

    I hope you're able to train some peoole to be as good as you at diagnosing a vehicles faults, because it'll go some way toward stemming this crisis of competence. Great work yet again.

  • @smithies_jocks
    @smithies_jocks 11 місяців тому +1

    Good diagnosis Dan, but its remarkable BMW didn't check this first. As usual I'm impressed with how incompetent the dealers are.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому

      Depends on the Dealership and the technician working on the car

  • @kevinmccreary3123
    @kevinmccreary3123 11 місяців тому

    Well said. Keep up the great videos. “Let’s fix it together”

  • @johnsmith-wd5sq
    @johnsmith-wd5sq 11 місяців тому

    I Love watching Dan work! I always feel a little smarter after each video!

  • @abugarciasebelas3898
    @abugarciasebelas3898 11 місяців тому

    Im not an automotive technician, but heyy i learned a lot from Dan. Tq

  • @jeffryblackmon4846
    @jeffryblackmon4846 11 місяців тому +1

    Very interesting diagnosis, Dan! I can understand why several other shops failed to find the problem. You are always doing neat studies. I appreciate your efforts!

  • @ambitioushunter
    @ambitioushunter 11 місяців тому +1

    Great work Dan! The solution was easier than it looks at the beggining. Unbelievable that dealership couldn’t find quite simple issue of the problem, especially while pc diagnostics indicate where the problem could it be.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +2

      Some technicians overcomplicate things😉

  • @idiotbox8291
    @idiotbox8291 11 місяців тому +1

    Love your work big man!

  • @henk_b
    @henk_b 11 місяців тому +1

    Masterclass diagnosing. As always. 👌

  • @Hybris51129
    @Hybris51129 11 місяців тому

    Very impressive diagnosis. I should like to add that this trend of needing to reprogram batteries when they are replaced needs to die in its tracks. Few things are more anti-consumer and anti Right to Repair then taking a repair that is purely mechanical forcing in a locked down digital component to the system.

    • @Diagnosedan
      @Diagnosedan  11 місяців тому +1

      The story has 2 sides.......you still can replace the battery yourself but you need the right tools

  • @johnhaley8888
    @johnhaley8888 11 місяців тому +1

    This guy is incredibly brilliant.

  • @arthurbiringer5676
    @arthurbiringer5676 11 місяців тому

    Another award winning diagnosis and repair!

  • @wellybobs4403
    @wellybobs4403 11 місяців тому +2

    Yaay Dan! Good to see you back!

  • @keithnsearle7393
    @keithnsearle7393 11 місяців тому +1

    Thank you Dan for showing us the trouble that even the so called "experts" could not solve.

  • @kingharcourt8583
    @kingharcourt8583 11 місяців тому

    Mad respect to this man