Quote:
Originally Posted by Lucio
I need help on my Mercedes W124, I just had an engine swap from the Om603 to the Om606 and after that, the ac compressor is not engaging. The 606 came with a compressor without a speed sensor. My mechanic tells me the absence of the speed sensor is the cause. Is there anyway to have my compressor work normal? Or is there a special klima relay for that compressor? .
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the 1995 version of the om606 should have a speed sensor on the compressor, The later models (W210 ones) had the variable compressor which lacked a speed sensor and cannot work with the wiring of your car. The 1995 version compressor difference by eyeballing is 4 mounting bolts as compared to 3 bolts of the later versions found in the W210 chassis
Some lexus/toyota vehicles had a similar denso compressor but actually used a speed sensor and thermal cut switch on the back of it, It will take quite an effort on your side to get this working (piece mealing together a back plate and a benz compressor crankcase), I doubt a mechanic will want to do that for you as its not a boxed job which he can stand behind.
Or you can do some measurements and see if the older style 4 bolt compressor can fit on your engine.