The crank sensor on the 190E 2.3 & 2.6 engines is located on the front of the engine, just below the water pump. It is a small, black sensor that is held in place by two screws.
The crank sensor is responsible for sending a signal to the engine's computer (ECU) that the engine is turning. This signal is used by the ECU to control the fuel injection and ignition timing.
To replace the crank sensor, you will need the following tools:
* 10mm socket
* Ratchet
* Extension
* Flat-head screwdriver
Instructions:
1. Disconnect the negative battery terminal.
2. Locate the crank sensor on the front of the engine.
3. Remove the two screws that hold the sensor in place.
4. Pull the sensor out of its housing.
5. Clean the sensor and its housing.
6. Install the new sensor.
7. Torque the screws to 10 Nm.
8. Reconnect the negative battery terminal.
Tips:
* When removing the sensor, be careful not to drop it.
* If the sensor is dirty, clean it with a mild detergent and water.
* Make sure that the sensor is properly seated in its housing.
* If you have any questions, consult a qualified mechanic.
