turbo troubles ML 320 CDI

William Chalverus

New Member
Joined
May 22, 2020
Messages
2
Reaction score
0
Your Mercedes
2007 ML 320 CDI
My turbocharger on my '07 ML 320 is behaving erratically. It was suggested that the controller may be the culprit, but purchasing a replacement is impossible because they are tuned to the individual turbochargers. Hhhhmmm
Has anyone been down this road, and can offer advice on how to proceed? Thank you,
 

EmilysDad

Senior Member
Joined
May 8, 2012
Messages
12,120
Reaction score
5,664
Location
Bury Lancs
Your Mercedes
ML350
my guess would be the electric actuator ..... they do fail. But you can get your actuator refurbished.
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
13,435
Reaction score
12,467
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
Where do you live , update your user details so someone can recommend an MB independent in your area .
MB specific diagnostic code readers will help pinpoint the fault .
The om642 turbo actuator issues are well documented and known by Mercedes independents
 
OP
W

William Chalverus

New Member
Joined
May 22, 2020
Messages
2
Reaction score
0
Your Mercedes
2007 ML 320 CDI
  • Thread Starter
  • Thread starter
  • #5
I took it to independent mechanic and he pulled codes (251101, ECR positioner, 235902, 251001). He replaced EGR valve, cleared codes and test drove. Took it home and immediately had serious intermittent power issues. Feels like transmission problems (chugging) at low, accelerating speeds with adequate RPMs. Wouldn't I expect there to be codes or engine light to indicate transmission problems?? Mech and I going for a test drive later.
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
13,435
Reaction score
12,467
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
I took it to independent mechanic and he pulled codes (251101, ECR positioner, 235902, 251001). He replaced EGR valve, cleared codes and test drove. Took it home and immediately had serious intermittent power issues. Feels like transmission problems (chugging) at low, accelerating speeds with adequate RPMs. Wouldn't I expect there to be codes or engine light to indicate transmission problems?? Mech and I going for a test drive later.
You might be better with a Mercedes specialist buddy ? Someone who knows these cars and has access to MB Star diagnostics .
 


GAD was founded in 2009 where we developed bespoke ECU Remapping software for motorsport clients, moving forward, we have extended to road vehicles for both performance and economy,
contact GAD Tuninghttp://www.GADTuning.co.ukto discuss your requirements.
Top Bottom