BMW 13627525014 Camshaft Position Sensor

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The intake camshaft position sensor is mounted to the left front of the cylinder head. Ensure the ignition is OFF before starting. Begin by removing the upper engine covers and the air filter housing and ducts. Next, detach the camshaft position sensor electrical connector. Proceed to remove the camshaft position sensor mounting bolt and then remove the sensor from the cylinder head. Be prepared to catch any dripping oil. To install, simply reverse the removal process. Remember to replace the camshaft position sensor mounting bolt, use new sealing O-rings when installing the sensor, and ensure the sensor harness is routed as before. Finally, check and clear any fault codes from the ECM memory.

The exhaust camshaft position sensor is mounted to the right front of the cylinder head. Ensure the ignition is OFF before starting. Begin by removing the upper engine covers and the air filter housing and ducts. Next, detach the camshaft position sensor electrical connector. Proceed to remove the camshaft position sensor mounting bolt and then remove the sensor from the cylinder head. Be prepared to catch any dripping oil. To install, simply reverse the removal process. Remember to replace the camshaft position sensor mounting bolt, use new sealing O-rings when installing the sensor, and ensure the sensor harness is routed as before. Finally, check and clear fault codes from the ECM memory.

Each camshaft position sensor responds to an impulse wheel mounted at the end of the camshaft. The signal from camshaft position sensors are used by the ECM for cylinder recognition, spark timing, sequential fuel injection, VANOS (camshaft timing) and Valvetronic (variable valve lift) control. If a fault with the camshaft position sensor is detected the malfunction indicator light (MIL) is illuminated. The camshaft position sensor is supplied 12 volts from the engine electronics fuses and ground from the ECM. It produces a 5 volt square wave signal to the ECM. Intake camshaft position sensor is located at the left front of cylinder head. Exhaust camshaft position sensor is located at the right front of cylinder head. The camshaft position sensor is also called the cylinder identification sensor. A malfunctioning or sticking VANOS solenoid may set camshaft position sensor fault codes. If you suspect this, swap VANOS solenoid from bank with fault code to the other bank. If the camshaft position sensor fault code follows the location of the solenoid, the solenoid is at fault.

By removing the electric fan, the front of the engine can be easily accessed and detached from the engine block towards the middle and top.