Quote:
Originally Posted by The Nightman
At 27:00, this guy claims you don't have to set the Valvetronic motor in service position, contrary to almost everything else I've seen. Any truth to this? It seems to work out for him
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Sure it works but it's not ideal. As you can see in the video the motor is under tension.
It's far easier to stick a hex wrench in the back of the motor and unload the tension first before unbolting the motor. It takes a few seconds at most, and you don't mess up the threads on the bolts holding the motor in place, avoiding any unnecessary rubbing of the worm gear on the eccentric shaft gear.
Also I've done this job three times on different N52s and never had to do a valvetronic relearn from INPA or any other tool. Just remove and reinstall, the car sets the limits before you start the engine.