Mercedes C180 Kompressor P0102 (200A-2) Air flow meter issues. Fault finding and repair.
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- Опубліковано 12 вер 2024
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Hi
This car came to me with the engine light on, and when scanned, with a hand full of trouble codes... when narrowed down, the car would report faults with the air flow meter, but, was nothing wrong with it...
Follow me on this video to find out what was the cause and how to resolve it...
Hope you enjoy the video.
Any questions or comments, please put them below.
Like always, thank you for watching!
This video has just been very useful. I had the same error code. Brilliant diagnosis. That air box is a bugger to get off though.
😊
Indeed...
Thank you for watching and for your comment!
Great video, nice to see the fault fixed on the readings well demonstrated . Wonder why the customers nearly always bring car for repair with empty fuel tank lol Regards RICH
Richard Mounfield
Lol
I get that all the time... the amount of times I need to put fuel in...
Thank you for watching!
It's only appreciated when you need to change the fuel tank 😂
Hi Luis, I bacame your fan already, nice contents. You are the only one in UA-cam give such in-depth informations!! I'm a Mercedes technician as well. One feedback to you is videos are too long sometimes! It would be great if you can show the important steps and make it short and sweet!!
renjith mathew
Hi
Really appreciate your feedback!
I will try... it is difficult to please everyone...
As I already had comments on other videos, saying exactly the opposite...
🤔😀
Thank you for watching and for your comment!
MAF readings low, lean misfires, fuel adaptions scream unmetered air or MAF and your ears heard it first. Nice diagnosis & repair and enjoying your videos!
Hayward's Automotive
Good ears still... that will change as I get old... lol😉
Thank you for watching!
HAHA I'm 61 and my brain and senses are the best diagnostic tools I have.
Nice work on the diagnose. You always have to think out of the box or failure text itself. Wrong data CAN be caused by faulty sensors but they NEEDN't be each and every time. In fact, an air leak of any kind is more often the real issue.
Nonetheless, you might have fixed only one part of the issue. The upper hose was dead. Experience with the M271 tells, it will also be the case with the lower hoses and the plastic valve beneath the compressor. It's a pain in the ass to fix these but you always should once the upper hose has gone. Once fixed, you should be fine for several years again.
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👍👍👍
Keep up the great work,I like the method you use to detect the fault and fix it
Auto Sport
Hi
A smoker tester would be helpful in this situation... I made one myself in the mean time... a video will be coming soon on that...
Thank you for watching!
Brilliant have got same code but had ecu oil contamination as well
Great video , had these air leaks on red top engine as well
Cheers
☺️
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Great video. The Maxisys is a bit lacking with the live data. I had similar codes and had to scope the maf. It was unresponsive so aftermarket from germany fitted. Idle improved but still rough. Called a MB specialist in our capital city and I was told an adaption relearn should be done anytime an airflow issue is resolved. Did the relearn and its like a new car again. Yep those hoses are a pita. :)
Kirk Abrahamson
Hi
Thank you for watching and for your comment!
I dont this guy get the credit he deserves.. thank you very much for the amazing informative Vedios you put lots of love and appreciation all the way from Melbourne-Australia
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Thanks!
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another great diag and repair and well explained . On the maxisys could you read the air flow pid on global OBD instead of vehicle manufacturer specific. just woundering if that was available to you on the maxisys. Thanks Mark
Mark Eastwood
Hi
Thank you Mark...
I have not tried... Will have to do next time...
Thank you for watching!
Thumbs up for the video, very useful information. Just a quick question, I have the same car and I'm getting a C1450 cod Emmission active. Can you shed some light. Thanks
Thank you! Very visual and informative video. Good job!
😊
Thanks... for watching and for your comment!
0 Kg/H was the clue and you quickly found the problem. That pipe looked very old and in a terrible state.
binarybox
Indeed!
Thank you for watching!
Great video ! I really like the test with the contact spray - very quick and on the spot
Thanks... used it many times...
Thank you for watching and for your comment!
If you go into the system with the Maxxis through EOBD and call up live data it will bring up the readings for the MAF sensor.
Yes... and there is other way I now know...😉
Thank you for watching and for your comment!
The MaxiSys was MIA on this Merc in vehicle specific. Did you try Mode 6 at all? Surprised the MAF didn't read something at idle. Good job. Cheers
tecnaman
Hi
No I did not...
Autel released a few updates over the last couple months... it might improved this... Will have to test next time I Merc here...
Thank you for watching!
Hello, On my C180k, the Compressor air pressure tube that fits into the throttle valve jumped at 5500 rpm because the clamp broke... :/ Unfortunately it caused damage to some part. Engine fails at cold idle and cold throttle. When it warms up it improves, but it continues to fail when I press the accelerator lightly. There is no loss of power at "full power" acceleration. What's your opinion? What could be damaged when the tube came loose? Tks for help me
Great video! How did you change the bottom hose (with valve)? The one you referred to as pain in neck.
With a lot of patience... lol
It is tricky to do, but can be done...
Thank you for watching and for your comment!
You need to remove the kompressor.
Nice fix, with smoke generator such leaks are much easier to find. I use it almost every day.
What parameters does your toughbook have?
Mambre Khachatryan
I have a smoke tester that I have made myself... video coming soon...
I know also use it quite often...
Without checking I don't really know...
LM Auto Repairs I need a toughbook to make my star mobile, do not know which one to choose, toughbooks with good parameters are too expensive.
Mambre Khachatryan
But it will worth the investment...
They are robust and last...
Don't buy nothing low spec, and then it will run slow if it will run at all...
Nice video, i have a w203 c180 kompressor 2004. And i have P0171 code on my car, any idea please? And how can i check for vacuum leak?
Thanks , had the same problem
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Thanks again for your informative videos 👍
Dev Dessai
Hi
Thank you for watching and for your comment!
Great work Luis, like always spot on with the fault finding great explanation cheers 👍
Cars Exposed
Thank you for watching and for your comment!
Great work! I can't help but wonder how many shops would have just called the MAF resulting in the customer having to cough up for an unnecessary part?
Niamh Healy
Probably a few...
Thank you for watching and for your comment!
on that engine the partial load vent hose always breaks. you need to remove the compressor and replace it all the way down. the rest of it is rotten as well. next time just spray brake clean around that area first and you will hear the engine surge
dann hienn
You haven't watched the entire video...😉
I did not sprayed brake cleaner, but sprayed another flammable stuff...
I have replaced the entire hose...
You can do it without remove all that... is not easy, but can be done...
Thank you for watching!
how did you repl the check valve w/o taking off the compressor?
dann hienn
The only issue in this case was the pipe/hose... nothing else...
Yes, for the valve more stuff would have to come out...
Thank you for watching!
Hello !Nice video .I Get code P0102 Powertrain-Fuel and Air Metering-ISO/SAE. Mass or Volume Air Flow ''A'' Circuit Low ! Is this MAF sensor broke??
Hi. I had to change all my vacuum hoses last week and the valve. The fault of maf are always there.
Are you sure you have not missed anything?
You can obviously have a faulty MAF...
Thank you for watching!
@@LMAutoRepairs all seems to be good. Just too low g/sec volume 3 instead around 10g/sec at idle
@@christopheparre7904 3g/sec is within values. 3g/ sec = aprox. 10kg/h, so the value is normal, at idle.
@@RaulLazar but got fault 0101
@@christopheparre7904 Yes, P0101 is related to a bad MAF (the MAF, connector or the wiring) almost every time... but there is a chance to be something else, like, air flow sensor isn't telling to the ecu the same thing as the others are - (example) MAF is saying something and the tps and map sensor are saying a different thing. Try to measure it in load and also with a multimeter and clean it (ONLY with MAF Cleaner). Honestly, I don't know what to say if I don't see all values, measure the MAF voltage and so on.
PS: if you decide to replace the MAF, DON'T go with cheap ones because they are just a waste of money.
Great video many thanks
juwee khan
Thank you for watching!
Had that very same trouble a few months back..awkward pipe to change..scrap merc
Conor Cousins
Lol
Thank you for watching!
I got same Code p0102 and iddle is unstable, acerelate well, but the issue is on iddle, I cleaned, but the issue persist. So I think I hace to replace it.
Hi there. I watched many videos about this problem (it's a common isue with the M271 engine). To fit in the tube some recommend a special pliers for tubes. Also to remove clamp on the hose behind the air box. I'll try this next weekend. (my first time ever, i'm total greenhorn). ;-)
You will be fine...😉
Thank you for watching and for your comment!
good video as always thank you my friend
sadik mamoun
Thank you for watching and for your comment!
Hi Louis , i have a video on my UA-cam with my mercedes c180 kompressor any ideas why is it doing like that please help me im Stranded with it
Hi. Where do you live? I am in west London. I have an iCarsoft i980 and mine throws a 2.8 g/s for the Air Flow Rate for the Mass Air Flow Sensor. I have a 2009 W204 C180 Blueeficiency ( 1.6 kompressor). Many times seems hard to go last 3000 revs and feels sluggish. No errors showed during the fault code read. How did you remove that air filtet housing? I managed just the top. Maybe you can have a look onto mine if you live reasonable distance, I can bring it to you.
Jejejeje, I went through half of your videos to find a reply to where are you based and I found it:D Peterborough is one and half hour away from me. Willing to travel and have it thoroughly checked by you. Meanwhile, maybe you can answer my question, please?
Ok, I have just converted your 10Kg/h into g/s and is very close to my 2.8 g/s (2.777 when converted). I guess theres nothing wrong with MAF sensor? Car has 118k miles ( got it with 93k miles). What I noticed though is the harness that goes into the MAF sensor has only 4 metal female connectors (?) when the MAF sensor itself has 5 metal teeth. Is that normal?
japanluv
Hi
Only saw all you messages now... 😋
Yes, is normal... the number or pins not matching the contacts on the plug...
You might have another issue that not a vaccum leak...
Check all the other live data... see if there is anything odd...
LM Auto Repairs Thank you. I shall do so. I still feel like bringing it to you:D Have a nice evening.
plz help i have trouble p2062 on w211 m271 and i cant solve it, since 2017
luis se fosses hoje comprar uma ferramenta de diagnostico pra mercedes qual compravas, sao tantos sd connects que nem sei qual escolher
Eu tenho a SD4...
Acho que há uma nova, mas não pesquisei...
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I have a c class 180 Kompressor 2007 it is cranking and so close to starting but wont start. I have replaced the 4 spark plugs and new sensor too still won't start...any idea why?
Scan the car... check live data etc...
Anything else will be pure guess work...
Thank you for watching!
You had to press "F next" all live data was there.
MrBorntoroll
Probably... I found the same sort of thing on the BMW... need to practice more... 😉
Thank you for watching and for the tip...
Hi. Where can I get that star tool from?
Hi
Few places out there... starting with eBay...
Thank you for watching!
The MAF stop readings if there's enough air entering after the sensor?
Petar
It looks like... which makes sense, if you have the air the engine needs, getting into the system after the MAF, this is not going to read any air...
Thank you for watching!
@@LMAutoRepairs
I have the same fault I've done even the engine overhaul
@@LMAutoRepairs I have same fault
Hey I managed to get on to digita-kaos now .....
Intrade Motor
Great stuff...
Thank you for watching!
WISH ALL FAULTS WERE AS SIMPLE.......
TCI FUSION
Not wrong...
Thank you for watching!
MY PLEASURE MY FRIEND..........
What were the Symptoms of the car ..
Ricardo Gomes
Hi
The would drive pretty much ok... if I recall correctly...
And that noise under the bonnet off course...
And I am sure that the consumption would be some how out of the parameters...
Hope that helps...
Thank you for watching!
Can I get a used scan tool from you? mishael from Nigeria thank
I don't have any used tools for sale...
Thank you for watching!
What is P0101??
Hi
It is also MAF related...
Thank you for watching!
Obd2 on the maysis shud show your airflow
Don't you hate it when customers bring their cars in on empty!
😊
Get it all the time...😓
what's "hair" got to do with anything??!! lol
James Allen
👍😂
Thank you for watching!
Have you got an email address i can ping you an email to please?
James Allen
You can do it here on UA-cam under private message if you want...
Or send it to lmsvvavr@sapo.pt
Ensure you put your name as the subject, so I can find the message...
As that is my "spam" email... lol
I can never find the private message place on here!!
Go to my page, click on the "About", then top right corner, send message...