Is the soot the result of not driving it hard enough? Short trips, in
town etc.
Randy
On 15/02/2022 10:14 AM, Robert Massmann via Mercedes wrote:
Well all I am in the process of trying to change the seals on my Ml 350 BT. I
am getting a good feel for why this is such and expensive repair job with
limited access and the number of parts that need to be removed. In the process
I have had to remove the air control assembly that delivers the intercooled air
to the intake manifold. There is a larger amount of soot buildup the second
photo came from the inlet of the intake manifold that I could reach and haven’t
touched the assembly that is shown in photo 1. I did see some oil in the inlet
to the turbo intake side as well as the transferee tube to the intercooler. May
just replace crankcase ventilation valve while I have things apart. The
exterior of this valve is quite oily. Car has about 87K miles on it. I have
three more screws to remove before I can remove the turbo, one of which I can
not see.
Will try and give an update in a day or two.
Bob Massmann
2012 ML350 BT 87K
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