2013 AUDI A6 NO A/C DIAG & FIX
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- Опубліковано 16 лип 2018
- Got here a 2013 Audi A3 with no a/c. We'll step by step thru the diagnosis and repair.
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Music source: • Quasars in the Distance
Supermariodiagnostics@yahoo.com
/ supermariodiagnostics - Авто та транспорт
This was the absolute best video out there on this specific issue. Thanks. Great job!
Thanks for this video, I didn't have access to any of the tools you used, but as it was the cheapest and easiest part to replace to fix my C7 A6 A/C issue, I rolled the dice and swapped out the pressure sensor. It worked like a charm!
Thank you for being so thorough. I wish nothing but the best!
Keep up the great work 🍾🏎️
Very nice diagnosis. Helpful info and you're right, this community is priceless. Thanks Mario!
Thank you sir!
Thank you my brother had this issue and this was the first video I watched for this same vehicle and it worked thank you Great job...
Great stuff Mario. I never figured out how to diagnose those a/c system. Never found good information. I tried to simulate it with my sensor simulator but no luck. This was great help & great information. Thank Mario for helping us and showing the normal data.
I own one of these and this made me feel like it could be straight forward dealing with upcoming issues! Thanks Bro, btw about to start binge watching your videos!
Another great video, Mario! I got kinda nervous when you called the condenser so soon. Glad it all worked out in the end, tho!
My AC has never blown as cold as it does now although that may stem from satisfaction of fixing it myself. Thank you for this video
Thank you Mario! Great job on that Diagnosis. I need to get me that scope!
Great useful info Mario 👏. Loved the video, very detailed.
Excellent video with the explanation of the scope data...
Awesome vid dude, Im working on the same issue with my A4
clean and efficient. YOU ARE THEE MAN. Thanks bro.
Great vid. I recently had a Matrix with a system like that. Compressor has no clutch. Runs all the time. The solenoid valve turns the thing on hydraulically and away we go. Nice to c the PWM signal to the compressor from ECM or Hvac, whichever. I think ECM. Really interesting was sensor in the hiside tube was communicating with info packets. So it’s a little module. Our cars today have so many of these little modules that were gonna have to name them like kids. I think that Audi has about 25 kids. The fix on the Matrix was a reman compressor. The drive in the front had gone “hasta la vista”. Remember the old Westerns where the good guy had two six guns holstered and ready? That’s Mario with his scope, scan tool and red beeping gizmo.
Yes micro modules everywhere lol 😆 I'm pretty dangerous with a backprobe 😂 Thanks for taking the time :)
Just needed confirmation on ease of removal and installation of pressure valve. All diagnosis equipment is wonderful if you are a shop but wing nuts like I just need to be sure there are no other trip ups in the removal and install. Thanks for showing it all.
Nice... I'm still new to AC. Will keep this video in mind!
Glad you enjoyed! Thanks for tuning in bud 👍
Great skills, great video, great work got job well done, Mario. I wish I would live around your area. Thanks.
That was a beautiful diagnosis
Appreciate the videos, good stuff, I never thought I could trouble shoot my canbus and all with my electronics oscilloscope.. those were clean waveforms .. 🍻
Thanks again for a super helpful and technical video. You have such a deep understanding of these modern car electrics, it is hugely impressive. Thanks for sharing Mario.
Well explained bud. Keep at it you're quite good so stick with it.
Thanks Steve for stopping by and commenting 😁
Damn, this was a wonderfully detailed video. Great work man.
Very good Mario. Also well presented . My A6 ax/ air not working after mechanic put in new motor and control unit . Thanks Mario
Good job brotha, thanks for the info.
Great vid buddy 👍
Great video, thank you for the help
The Power Probe IV is a good start but the scope is still king. Nice call on the sensor and I appreciate the explanation of your approach. I lived in Daytona Beach for 12 years but I had to get out of the constant heat. :)
wyattoneable thank you for your comment and view! I'm glad you liked the explanation, i feared i might've been too redundant. Not a day goes by where i don't think about leaving this heat! 🤣 thanks again for dropping by!
Great video man. Did similar troubleshooting with the error pressure sensor, fixed that. But the AC compressor still isnt turning on?
Mario eres la verdura del caldo wey muy buen diagnostico gracias por el video
Yo this help a lot have 2 car with similar issues where not cooling at all system have pressure but won’t cool Audi an vw
what program do you use for the ac diagrams, very good video by the way.
Sweeeeeeeet video and diagnosis. I’m about to work on a bmw tomorrow that’s coming from another shop. Ac issue
Cool Azael 😎 oughta be a piece of cake for you brother. Thanks for checking it out, hasta la proxima 👍
Wow, even individual sensors communicate on the bus. I wish there was a way to recognize bus signals that come from the component you're interested in. As it is, the scope sees all the chatter.
We're quite a long ways away from automotive manufacturers handing over any proprietary information in which we could decode the waveform. Some have gone as far as to power certain modules, isolated from the bus, and noting the identifier, to then locate them later in a decoded bus waveform. Some have successfully pinpointed which node is talking by bidirectionally commanding a function from a particular module.
I've done neither of these since it's a bit above my head 😆
Would love to see the day when manufacturers do release this information.
Chris Groff from science of diagnostics was the only guy that I saw that was able to make a successful diagnosis due to serial decoding.
I've also heard of cases where decoding is useful to find a babbling module with a dominant level message, causing all of the recessive level messages to go unheeded, thus "crashing" the network.
Thanks for watching!
Great video man thanks, having the same issue with 13 3.0T. Going to swap that out and see if that’s it.
Did the sensor fix your issue?
Hey mario, have a question... I had The high side pressure temperature sensor trouble code... I also had error on my Scan Tool... I replaced the sensor and the trouble codes never came back.. thx god, But the Ac Compressor did not come on.. I went to basic settings and I cleared them.. is it possible that I could’ve messed up by doing that?? Thx for the video. I’m stuck ........
Liked and Subscribed! Awesome video. Is the sensor in this case sensing the low side, or the high side? After repair it was reading 127psi. I am a home gamer, and I've been fighting with no AC on my 2008 A6. The most I was able to fill low side to, was about 63psi on manifold gauge. I was unable to get compressor to cycle on while filling. The only error I got through VCDS scanning was refrigerant pressure too high. I was able to get compressor to cycle on by previously applying compressed air to center port on manifold. It was about 30-50 psi higher than the low side. I was also able to get compressor to cycle on using a duty cycle test in VCDS. The off code for compressor was 1. (Refrigeration pressure too high). I'd clear this code, and try again, until I gave up and decided to research more. Seems difficult just to get information. Do I need to get a module tool to cycle compressor on, just to fill system, or test compressors ability to function, without car interfering? Sry long post.
SUBSTANTIAL Super Mario Diagnostics
Brilliant 🎶 🎵 👌 Great tutorial Good video thank you very much for sharing with us. Super Mario Diagnostics
From Nick Ayivor from London England UK 🇬🇧
Nice work
Would the ac blow hot before and sorta warm? Or was it not blowing at all?
Great video ..
So there was LIN communication between sensor & control unit, which was correct, but sensor was bad ... The pressure regulator gets pwm from control unit..
I'm learning from you, thanks
Thanks for watching!
great job.thanks
Thank you!
Thank you dear
Is 55*F vent temp normal for a 100 degree day in FL? I'm used to seeing mid to low 40s in Texas. The reason I'm asking is I'm working on a 2010 focus that will not get below about 55 vent temp. Pressures look ok for 100*F ambient. 230 ish on the high side, and about 40 on the low. It came in with a dead compressor and a leaking evaporator core. We sold the whole kit with expansion valve and dryer, as well as the leaking evaporator. Afterwards, pressures look ok, but inadequate cooling. Any ideas? Any related experience with this vintage focus? Thanks Mario. Great videos
To have the exact spec one would have to look at the performance test the is in service info, following their instructions. Also if you didn't change the condenser also, it may bite ya, if internal compressor damage took place. Those pressures are not bad, and that vent output temp isn't bad either, there's much more humidity down here that the evaporator has to overcome.
@@SuperMarioDiagnostics it was 52% humidity when I checked it after the repair, and 100*. We got the condenser in a kit from 1-800 radiator, but they didn't sell it. I checked all the service info I could find on all data. It was all generic and not much help. 55 degree vent temp here is pretty bad, but the humidity has-been high. I do a lot of AC work and never see vent temps that hot after a repair. I would suspect a junk compressor, but with normal head pressures, it's hard to say that's the cause
I did not know the power to the clutch was PWM. Is that to control compressor speed irrelevant of engine speed? Thanks for sharing.
Andrew K actually there is no clutch. The variable displacement compressor is rotating along with the engine, and the PWM signal controls the pressure of the compressor, depending on the request. This is why you will not hear the operation of a clutch in these systems. I do apologize if i said clutch. There is no clutch, i said clutch in the video but i did correct myself, sorry about that
Good job
I have an audi A5 3.0tdi 09 plate withan aircon issue. Its been in and out of garages who are unsure what it is or too scared of the work it may involve. Everything mechanically has been checked and or replaced (a tool was connected to the commpressor sending the correct signal through and it worked peefectly blowing ice cold air out) the only fault code is "implausible signal AC" "00898". The pressure sensor hss been checked and replaced, commpressor replaced, ac head unit replaced. Any other ideas what could be wrong with it?
Cool info! How’s that micsig working out for you? Do you use it for anything specific over a pico??
Actually in my vw cc video i mention the scope dying:( i loved it though. But now the only scope i have is the Pico. Thanks for watching!
the autel is a fantastic scanner. much better than snap on in my opinion.
phil holbrook can't say I've used the snap on, but I've seen it in action. But the autel is my go to scanner for sure
What type of tester are you using
Great audio! 😄
Debbie L getting better one video at a time :)
I am from Malaysia Kuala lumpur
My Q5 also have a troubleshooting about NO A/C at all but at the certain time he will on the A/C its only up to him eventhough the control unit still on.
Is there any other place i can diagnose and fix exatcly as you video.
Thank you
Hi I have 2006 audi q7 3.0tdi ac not working check with VCDS software for audi and not showing any errors I changed evaporator temperature sensor and going to change other sensors as well.i don't know what I am doing is correct or not please help me
Thanks
thank you for this helping video and I want to ask about micsig oscilloscope is it good device to buy
Isaac adam i absolutely love it honestly. Best bang for your buck, especially for automotive. Thank you for watching!
Super Mario Diagnostics Where did you buy the micsig scope from?
Close to home
rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F253802984379
Super Mario Diagnostics does it have presets for amps or anything?
Super Mario Diagnostics and are you going to Super Saturday?
I have problems the ac compressor does not activate the 2 connector cables have ground
where did you get your test leads for your scope? i ordered the same scope and the ones they come with are garbage. the distance between the positive side and negative isnt long enough to make it useful. good work mario
phil holbrook i actually got them here
Heavy Duty Auto Test Lead (BNC to Banana Adapter Cable) rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F220820592975
Great leads, make sure you tighten them at the tips, with a tiny flathead lol
Thanks Phil!
Hi! My ac compressor is not getting any power. Blows hot air , they are saying my electric system Modular needs to be replaced panel d . Is this accurate?
Hey bro thanks for the video!! I have a 2014 Audi A6 that I need to change that same sensor and I read that I would have to take off the front number to reach the sensor, how true is that? Am I able to just open good and reach it a bit more simple than taking off the bumper?
Should be easy access without removing bumper, i didn't have to
Also no need to evacuate the system, just remove sensor and replace
Thank you
Can you please give the exact name and a link for this sensor, I need this replacement as well
That’s the link to the same part I ordered
Great stuff! I'm still wondering why bar is used in any industry since it's not a si unit of measure. Like how is 14.7 psi to 1 bar useful. Lol looking forward to your next video! 👍
billie smith thank you for your support! I guess it depends. It's like a language, i can see why they use it, but it's not native to me lol. Thanks for watching! Glad it was useful to ya!
Super Mario Diagnostics well bar was a made up unit or measure used in weather where they broke it into millibar for atmospheric reasons I don't understand but why it's been used across various industries is still unknown. Little bit of useless info there. Lol
billie smith 😂 that's ok thanks for sharing lol
Great video my brother
Please Help
2006 audi a8 4.2
When the a/c is turned on, hot air blows out of the vents for 5 minutes after which cool air then begins to blow out of the vents.
I used ac Gauges to see when ac compressor working . it take 6 minutes .after that it Blowing ice cold.
When ac compressor working the high side 170 low side 37psi
I changed the AC compressor solenoid to a new one but the problem is still.
The freon level was fine
No Fault Codes
Thank you
Like this video thanks .
Gracias Mario. I am having a similar issue with my 2008 Audi a6 Avant and everything points to the pressure switch. A dear friend of mine who is a fantastic mechanic hooked the gauges to both high and low pressure and there is plenty of Freon. Too bad I don't have a vag com.
Which scope should u choose between autel and ur scope? Thank u
melih nalbant as you can see I've made my choice. For the price it cannot be beat IMHO
Great work sir :) . Is this A6 2013 Hybrid ?
Thanks! No not a hybrid
Hey brother, thanks for the information. But I have an issue, hoping you could help me out. So I have an Audi just like the one here I went to change the sensor and realized the valve core was leaking air. Could that maybe Be an issue and trigger the sensor and if so would Could I change it out or is there a certain way to do it?
You'd have to empty the system before changing it, but doing so will not cause an issue once the sensor is mounted on top of it
Thanks a lot, greatly appreciate it!
Btw, do you have any videos showing how to empty out the system?
No i don't. You need an a/c recovery and refill machine to do that according to the law
Hi Mario, I have the same A6 in India, I have issues with AC. Sometimes ac compressor is not getting engaged. We changed pressure sensor switch and now error shows that it's faulty humidity sensor. Another static message is "Function limitation due to missing error message" Fault code uc111100. My mechanic says to change the compressor, is that the solution? Please advise
No tiene corriente mi compresor y no prende el ventilador cuando enciendo el ac y abeses se queda prendido un ventilador por un rato después de apagar el auto es un Audi A4 2010 el fan modul tendría que ver con eso ?? Ya cambié el sensor de presión
What is the part called? Cheers
Hey, there. I own a 2014 Audi A6. I have a code. Which is B11AF07. Don’t know where the fresh air door motor is located at. Any info on that?
U111300 Function Limitation Due To Received Malfunction Value
Can u help with this ?
AUDI A6 2012.
Nice good sir my name mi macnic a.c from india
Hi man. I have an A4 TDI with the same problem!
Today when i change the sensor the new one start to leak gas, for that reason i pass the max turn and i broken de aluminium part tube. What can i do to repair? Please help
Replace condenser
Can u save wave forms on that scope?
You sure can bud, also reference waveforms to compare on the spot
True gotta look into getting one. Also wanna get the autel 906bt
I've had it for a day, it's pretty good 👍
I have the same issue on my A5, I replaced the sensor yet I don't have possitive pulse to the compressor any suggestions?
Same exact code?
00457 Control Module for network (j519) and Giver for refrigerant presure/ temperature (G395)
Are my current codes
I checked all wires and new presure sensor and still nothing
I hate going off topic but I have this car and an as yet unsolved problem.
If the car is in D and from a brake pedal stop is allowed to
1- creep forward at all without pressing accelerator
Or
2- sit without the accelerator being pressed for a time span of maybe 1.5 secs
When you press the gas the transmission slips like it’s ruined- won’t move vehicle- high revs etc.
However if you move your foot immediately from holding brake to accelerator the car takes off without any slip every time.
Is this some faulty rollback function or hold on hill or creep control software problem? Has anyone heard of this 2013 a6?
Are you located in weston?
Ft. Lauderdale
That's a rapid diagnostic
I have the same problem with my car I took to the mechanic and he didn’t fixed it he replace the hight pressure valve the compresor the others part condenser and fans and still doesn’t work I don’t want to take my car back I have to paid more for it and not fixe it
Entonces cuál fue el problema solo el such
Lo explique en el video
El sensor de presión berdad
Cambié el sensor de presión pero no manda corriente al plog del compresor que puede ser?
I need you in Dubai