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2012 W212 Diesel E350 Judder. Help!!

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Old Feb 26, 2020 | 04:25 AM
  #1  
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E350 Estate
2012 W212 Diesel E350 Judder. Help!!

Hi All

i’m hoping someone can shed some light on the current problem i am experiencing with my E350. (85,000 miles)

i have a judder on light acceleration. To the point where i have to let off the throttle and start again. I have read problems linking to the 7G auto gearbox however i think this is definitely more Engine management

The EML is currently on and will not clear. The following codes are on the ECU...



so far i have changed all the orange seals on the Inlet pipe (Y-pipe) , inspected all the turbo hoses (all fine)
replaced the seals on the aluminium pipe coming off the turbo. Pic for ref.


i have called MB for a price on the MAF and they advised they do not supply this part anymore? I think this would be the next step to replace the MAF before looking at any potential ECU defect.

ANY Help would be greatly received

thanks

Last edited by Blue350; Feb 26, 2020 at 04:49 AM.
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Old Feb 26, 2020 | 09:09 PM
  #2  
kajtek1's Avatar
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1922 Ford Model T / no OBD
The codes clearly show the MAF.
I know on this engine you have 2 MAFs who are part of "Moose horn" pipe, what makes the repair expensive, but MAF is not the part you want to fool with.
Check the price at https://www.mbdirectparts.com/
FYI, we do have designated diesel section on this forum. Just scroll down on main page.
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Old Feb 27, 2020 | 07:58 AM
  #3  
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Joined: Dec 2019
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2008 R320 CDI 4MATIC
Originally Posted by Blue350
Hi All

i’m hoping someone can shed some light on the current problem i am experiencing with my E350. (85,000 miles)

i have a judder on light acceleration. To the point where i have to let off the throttle and start again. I have read problems linking to the 7G auto gearbox however i think this is definitely more Engine management

The EML is currently on and will not clear. The following codes are on the ECU...



so far i have changed all the orange seals on the Inlet pipe (Y-pipe) , inspected all the turbo hoses (all fine)
replaced the seals on the aluminium pipe coming off the turbo. Pic for ref.


i have called MB for a price on the MAF and they advised they do not supply this part anymore? I think this would be the next step to replace the MAF before looking at any potential ECU defect.

ANY Help would be greatly received

thanks
FWIW......

MAF are now only sold as an assembly with the air intake duct, some people refer as the bat wing.

I purchased MFA with duct assembly for my 2007 in December 2019 new delivered for $360.00 from FCP euro{purchased from them for the lifetime exchange warranty].

Look up the correct part number for your vehicle and shop, as the price difference will surprise you.

Your MFA and duct look like this on the OM642
See link
https://cimg8.ibsrv.net/gimg/www.mbw...9a7452f2a3.jpg

See parts for you vehicle{I ran the VIN number you show in the photo] at link;

http://mbepc.net/1/fg/e/d21/212224

Regards

Joseph~

Last edited by Joseph~; Feb 27, 2020 at 01:07 PM.
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