Hi all.

Sorry for the long rant!

I have been a long time Mercedes lover, both my parents have owned many Mercedes and I have finnaly bought my first Mercedes yesterday!

A 2000 E320 CDI Avantgarde - 134k miles on the clock and you would never know it!

Unfortunately, it has a slight problem.

When I test drove it, no problems, lots of power, bit of smoke, but normal for a diesel I assume?

I have a problem whereas most of time there will be no power and LOTS of BLACK smoke on heavy acceleration (smoke only above 3k ) During this time I dont THINK I hear the turbo whistle but I could be wrong.

Then, out of knowhere, the power will come back, smoke will reduce and everything will be normal again. This I have noticed only when I sit in traffic for a long time, it soon returns to the low power situtation again.

I read another post on here and that user had the same problem but it was a 220 cdi and was a boot actuator valve.

Any ideas?

Thanks for all your help in advance.

 

Also, might be worth mentioning.

While out driving today, I had a "Warning, OIL level too high!" message, When I stopped I checked the oil and its at the top of the dipstick.

Its my undestanding that these engines are overfilled quite frequently?

Would this cause the performance issue?