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Originally Posted by deanyel
I've done a search but dont' get it - how do you measure the compressor clutch gap? Can it be done on the car or does the compressor have to come off? Or does the serp belt have to come off? I just don't see a place to measure. Car is a 400E, MB compressor part # 000 230 06 11 80, which I believe is a factory rebuilt Nippondenso. I'm getting a compressor clutch blocked fault code and this seems to be a good suspect. Any help appreciated.
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it can be measured on the car you use a feeler gauge between the idle pulley and the front clutch housing, i am not sure what the value is, but before i would measure gap i would check the wiring harness plug on the compressor, i have seen this same code caused by the wires at the plug coming loose, open the plastic housing and see if this is the case, it seems to happen sometimes when the motor mount on the drivers side breaks, and when you accelerate the engine raises up on that side and over time damages the wire.