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Frequently asked questions about cars and motorcycles

How to Replace the Engine Speed Sensor on Mercedes A-Class

Model: Mercedes Classe A W169 - Years 2004-2012
Part: Crankshaft position sensor

In this video, see how to replace the engine speed sensor on Mercedes A-Class: lift the front hood and secure it with the prop rod. Locate the engine speed sensor; using a socket wrench, remove the mounting bolts (if present next to the valve). Disconnect the part from the engine mount. Compare the worn part with the new one, install the new part with the respective mounting bolts, and connect the engine speed sensor. Finally, check the maintenance performed and the proper operation of the vehicle.

Updated on 1 March 2026 by ScegliAuto

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