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International Automotive Technicians Network
Re: Mercedes key fob
Posted to Technical Discussion Forum on 9/2/2021

Jack,

As stated by another post, the crank sensor is a major pattern failure part on that car.

Pull the sensor out, and mount it by its mounting collar in a vise. Hook an ohm meter to it. Then, take your heat gun in one hand and temp gun in another hand an... Login to read more.