Bmw E46 330i Crankshaft Sensor
By the Editorial Staff
March 24, 2026
The digital motor electronics (DME) engine management systems in BMW E46 vehicles use the engine control module (ECM) to control fuel injection, ignition and other important drive train functions. The ECM sequentially triggers the fuel injectors to spray fuel into the intake ports and then, a split-second later, triggers the ignition coils to fire the spark plugs. This sequence of events is.
Replacing Your BMW E46 Crank Sensor This section provides a step-by-step guide on replacing the crank sensor, including necessary tools, precautions, and post. In this guide, learn the step-by-step process for replacing the crankshaft sensor on BMW 316i to 330i models (E90-E93, E46) without removing the sensor itself. Hi All, I have recently got my 2000 330i sport auto on the road.
I bought the car as a non runner and had not been on the road for 10 years. Got it started with a new fuel pump, fresh oil, fresh fuel etc. Spent the next few months just doing a few maintenance bits.
Including new vanos seals. This original BMW crankshaft sensor is used on M52, M52TU, M54, and M56 engines. The crankshaft position sensor (aka CPS, speed sensor, or reference sensor) tells the engine computer what position the crankshaft is in to set ignition timing and other settings.
If your engine is hard to start and takes too many cranks before it catches, this sensor has likely failed. This part is listed by BMW. 2002-2005 BMW E46 Crankshaft Position Sensor - OEM 12141709616 Tested M54 Engine.
Manufacturer Part Number: 12141709616. Removed from a 2003 BMW 325i, it provides critical engine speed and position data to the ECU to ensure accurate ignition timing and engine performance. What is up everyone! Welcome back to another video! We are still pulling the motor out but wanted to show ya how to replace the crankshaft position sensor.
L. Shop OEM BMW Crankshaft Position Sensors at BMW Parts Deal Up to 30% off Now! We offer factory BMW Crankshaft Position Sensors for all BMW series and models. Explore common problems with BMW crankshaft position sensors, their symptoms, causes, and effective repair solutions.