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eberhard_stern35

Mercedes V Klasse Diesel Engine Issue Resolved

My 2010 Mercedes V Klasse diesel is acting up. The speedometer has a warning light, and I've noticed reduced engine power plus smoke when accelerating. There's also a strong exhaust smell. Could this be DPF issues? It feels like the emission control is failing me.

Summary of the thread

A 2010 Mercedes V Klasse diesel was experiencing reduced engine power, a warning light on the speedometer, smoke during acceleration, and a strong exhaust smell. These symptoms suggested potential issues with the Diesel Particulate Filter (DPF) or emission control system. A suggestion was made to check the exhaust back pressure sensor, which was found to be defective and subsequently repaired, resolving the issue.

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4 comment(s)

juergenmaier41

Sounds familiar. I had something similar with my V Klasse diesel engine. I was experiencing reduced power and a weird smell too. Have you checked the exhaust back pressure sensor? That was the culprit for me. It could be giving false readings and messing with the DPF.

eberhard_stern35 (community.author)

The exhaust back pressure sensor, huh? Where is that located, and is it something easily checked? I am not that technically savvy.

juergenmaier41

I am no expert either, but my mechanic said it's often near the DPF in the exhaust system. Honestly, I wouldn't try messing with it yourself if you are not comfortable. Best to get it checked at a workshop. Could save you from bigger diesel engine problems down the line.

eberhard_stern35 (community.author)

Thanks for the tip! I took it to the shop, and you were spot on. The exhaust back pressure sensor was defective. Repair cost was 245€. All sorted now!

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MERCEDES

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VKLASSE