Mercedes E Klasse Diesel Camshaft Sensor Issue

I had a similar issue with my old BMW 3 Series Same symptoms poor starting, check engine light, and reduced power The error code pointed to a camshaft position sensor as well It turned out to be a corroded connector Have you checked the wiring and connector to the sensor itself The camshaft sensor works with the crankshaft sensor to determine the position of the pistons and valves If the camshaft sensor sends incorrect data, the engine timing gets messed up, causing poor performance

Thanks for the quick response When you say corroded connector, is that visible corrosion, like green gunk, or something more subtle Did you fix it yourself, or did you take it to a mechanic I'm reasonably handy, but automotive sensor stuff can be tricky

In my case, it was fairly obvious once I located the connector There was visible green corrosion on the pins inside I tried cleaning it, but the problem persisted Because the camshaft position sensor is crucial for proper engine operation, and because of potential timing issues from incorrect readings, I took it to a workshop They replaced the connector and the sensor, just to be safe

It turns out the connector was the problem I took your advice and went to a trusted workshop They confirmed it was a corroded connection on the camshaft sensor They cleaned everything, replaced the connector, and so far, so good It starts perfectly, and the power is back The check engine light is off Thanks for pointing me in the right direction