Mercedes Benz Camshaft Position Sensors Replacement
DIY Cost: $20-$120
Est. Time: 1 hr
In this guide, you will find step-by-step instructions with photos on how to replace a Mercedes Benz camshaft position sensor.
Replacing the camshaft position sensor on most Mercedes-Benz is relatively easy.
The passenger side sensors are straightforward to replace. However, the driver's side camshaft position sensors are more challenging and will require at least removing the power steering reservoir.
You can replace just the faulty sensor, but it is recommended to replace all four sensors simultaneously.
A failing camshaft position sensor will start losing its ability to transfer data quickly. As a result, mismatched fuel delivery and ignition timing will cause your engine to sputter, accelerate poorly, lack power, stall, or even start.
The Camshaft Position Sensor detects camshaft rotation and is mounted near the cylinder head so that the sensor is opposite to the timing rotor attached to the engine camshaft. The engine ECU detects the camshaft angle and performs cylinder recognition based on the signals detected by the camshaft position sensor.
What's the difference between the camshaft and crankshaft position sensor?
The crankshaft position sensor monitors as a multifunctional sensor used to set ignition timing, detect engine RPM, and relative engine speed. In addition, the camshaft position sensor is used to determine which cylinder is firing to synchronize the fuel injector and coil firing sequence.
How much does it cost to replace the camshaft position sensor?
To replace a camshaft position sensor, you can expect to pay anywhere from $95 to $200. Parts alone will run about $25 to $100. Labor costs will be in the range of $70 to $100 for professional replacement. Expect to pay more if you have a luxury vehicle or have your local car dealership perform the replacement.
Mercedes Benz Camshaft Position Sensors Replacement Replacing the camshaft position sensor on most Mercedes-Benz is relatively easy.