Knock Sensor: Service and Repair

WM 287220 Removing and installing knock sensor

Technical values






Preliminary work for removing knock sensor

1. Place protective covers on the vehicle to avoid damaging the body.
2. Remove intake-air distributor -> 244620 Remove and install intake-air distributor - section on "Removing" Removal and Replacement.

Removing knock sensor

1. Release and disconnect cable plug -1-.
2. Mark installation position of knock sensor so that cable plug can be reconnected after installation.
3. Remove knock sensor -3- by unscrewing the Torx screw (M8 x 35) -2-.





View of knock sensor

Installing knock sensor

1. Insert knock sensor -3- in the original position and then screw in and tighten the Torx screw (M8 x 35) -2-. => Tightening torque: 15 ftlb..
2. Push on cable plug -1-.





View of knock sensor

Subsequent work for installing knock sensor

1. Install intake-air distributor for the relevant cylinder bank -> 244620 Removing and installing intake-air distributor - section on "Installing" Removal and Replacement.