Recent content by discog

  1. D

    W164 ML320 CDI engine troubles - opinions wanted!

    I forgot to update the thread but I did get to the bottom of the problem and resolve it. Here's what happened for anyone that comes across this with similar problems in future. The issues appear to have been caused by the non-oem turbo actuator that I foolishly bought and installed in a hurry...
  2. D

    W164 ML320 CDI engine troubles - opinions wanted!

    Quick update, I just reseated the plastic inlet pipework paying lots of attention to each joint, and refitted the original MAFs. The little puffs of smoke etc that I noticed before are gone and the pickup is far better without the severe flat spots. I'm sure there's a better seal between the...
  3. D

    W164 ML320 CDI engine troubles - opinions wanted!

    Hi Andrew. Thanks, but not sure it's fluid burning off, as there are visible puffs as the revs drop. Feels like it's when the EGR opens and puts stinky exhaust gases into the inlet manifold but I could be wrong. Definitely looks like it's coming from the union between the turbo and the plastic...
  4. D

    W164 ML320 CDI engine troubles - opinions wanted!

    Also I looked to see the position of the actuator when revving the engine, not sure what it should be doing exactly, but didn't look too crazy. The coughs didn't seem coincide with the actuator moving though. Video here, where you can just about make out the puffs of smoke: New video by George
  5. D

    W164 ML320 CDI engine troubles - opinions wanted!

    The old intake was beyond patching so I threw it out, but I did keep the original MAFs. Yes the new ones were pattern and came with the new pattern intake. I could easily swap out the new MAFs for the old ones. The other thing is that this morning I tried sticking my phone under the bonnet and...
  6. D

    W164 ML320 CDI engine troubles - opinions wanted!

    Thanks, that's exactly the sort of detail I was looking for. Was looking at Autel diags as at the moment I'm just using a Bluetooth adapter and an app on my phone and I'm not getting the live data I need to diagnose this one. Also no option to recode the ECU for the new MAF sensors. Would...
  7. D

    W164 ML320 CDI engine troubles - opinions wanted!

    Hi all, So I ended up replacing the EGR as a local garage told me that it was shorted on the electrical side. Sure enough the EGR errors are now gone, but the coughing and flat spots are still very much there. I think I have ruled out an intake air leak, and the mass airflow sensors were new...
  8. D

    W164 ML320 CDI engine troubles - opinions wanted!

    Firstly, please excuse the long post, I have been having some engine troubles recently and I am hoping that the community can help me get to the bottom of it. The car is a W164 ML320 CDI with the OM642 engine and about 133000 miles on the clock. The problems first started about a week ago on...
Back
Top Bottom