BenzWorld Junior Member
Date registered: Jun 2011
Vehicle: 1993 W140 500SEL- 90K miles White/Palomino, 1985 W126 380SE- 170K miles Grey/Black
Location: Detroit, MI
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I would get the exact code number b/c when they say "..believe to be a camshaft sensor" that is a bit too vague - IMHO.
I would now start to look at the Intake Air Temperature Sensor. This part is in your air intake system and sends information to the engine computer for fuel / air mixture adjustments depending on ambient temperature.
In general though, it would be BEST to have a trained driveability technician view real-time data with a scan tool while road testing the vehicle when the symptom is occurring.
This would give the best results as far as pinpointing the root of the problem.
As you are aware, the MB dealership would charge a small fortune for this, but an independent shop could do it provided they had a generic scan tool that could communicate with your engine computer and view live engine data. What's your next move?
Last edited by asvmac; 06-21-2011 at 07:21 PM.