Exhaust System: Service and Repair

REMOVAL AND INSTALLATION





[FWD]










[AWD]






Required Special Tools:

- MB991953: Oxygen Sensor Wrench
- MD998770: Oxygen Sensor Wrench

REMOVAL SERVICE POINTS

[[A]] LINEAR AIR-FUEL RATIO SENSOR REMOVAL





Remove the connection and clamp of sensor connector, and then use special tool MB991953 to remove the sensor.

[[B]] HEATED OXYGEN SENSOR (REAR) REMOVAL





Remove the connection and clamp of sensor connector, and then use special tool MB991953 or MD998770 to remove the sensor.

[[C]] RIVET REMOVAL

CAUTION:
Be careful not to damage the heat protector with the drill.





Use a drill (6.0 mm) to make a hole in the rivet to break it, and then remove the rivet.

INSTALLATION SERVICE POINTS

]]A[[ EXHAUST TAIL PIPE DIFFUSER INSTALLATION

When the part is reused, make sure that there is no excessive play after installation and that the part is securely fixed.

]]B[[ RIVET INSTALLATION





Use a rivet tool shown in the illustration to connect the parts with rivets by the following procedures.
1. Insert the rivet into a corresponding location.
2. Set the rivet tool at a portion A of rivet.
3. While pushing the flange surface of the rivet onto parts to be fixed with the rivet tool, press the handle of the tool.
4. Thin part of portion A of the rivet will be cut off and the part is fixed in position.

]]C[[ HEATED OXYGEN SENSOR (REAR) INSTALLATION





Tighten the sensor to the specified torque by using special tool MB991953 or MD998770.
Tightening torque: 44± 5Nm (32± 3 ft-lb)


]]D[[ LINEAR AIR-FUEL RATIO SENSOR INSTALLATION





Tighten the sensor to the specified torque by using special tool MB991953.
Tightening torque: 44± 5Nm (32± 3 ft-lb)