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sarahkoenig64

Mercedes C Klasse Diesel Engine Power Loss

My 2008 Mercedes C Klasse diesel has a check engine light and reduced power. The diagnostic scan indicates a crankshaft to camshaft reference value discrepancy. Could a defective crankshaft sensor be the cause?

Summary of the thread

A 2008 Mercedes C Klasse diesel is experiencing a check engine light and reduced power, with a diagnostic scan indicating a crankshaft to camshaft reference value discrepancy. A defective crankshaft sensor is suggested as a possible cause. Checking the wiring for loose connections or corrosion is recommended before replacing parts. Seeking professional assistance is advised to accurately diagnose and resolve the issue.

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4 comment(s)

richardschneider9

That sounds frustrating! I had a similar issue with my old Volvo, although it was a petrol engine. The crank sensor was playing up and throwing all sorts of misfire codes. Did you check the wiring to the crank sensor? Sometimes it's just a loose connection or corroded wire. Before you go replacing parts, give that a look!

sarahkoenig64 (community.author)

I appreciate the suggestion regarding the wiring. What specific symptoms did you experience with your Volvo? Did the diagnostic scan pinpoint a crankshaft sensor issue, or were there other potential causes indicated?

richardschneider9

Yeah, the Volvo was stuttering like mad, especially when accelerating. The scan tool mentioned the crank sensor but also hinted at cam sensor issues. I replaced the crank sensor myself, but it didn't completely fix the problem. In the end, I took it to a workshop, and they sorted it out. Might be worth getting yours checked professionally if you're not confident.

sarahkoenig64 (community.author)

I appreciate you sharing your experiences. Given the potential complexities, I agree with your recommendation to seek professional assistance. I will schedule an appointment with a trusted workshop to diagnose and rectify the issue. The estimated repair cost is approximately 340€. Your contributions have been invaluable in guiding my decision.

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MERCEDES

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CKLASSE