Oil pressure for CSO pump, I do those automatically.
M137 engine harnesses can be a pain, so some sensors are a whole bunch easier. I always hate finding ECU's full of oil. Yech...

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Dr.Diesel -
Shop Foreman
Master Guild Mercedes-Benz Technician.

Think the dealer is expensive? Do you know how much it costs to train a dealer tech? Or buy the required MB special tools to have on hand?