Yaw Rate Sensor: Service and Repair

ESP sensor unit G419, removing and installing
The Transverse Acceleration Sensor G200, the Rotation Rate Sensor G202 and Longitudinal Acceleration Sensor G251 are installed in one housing, together with Electro-Mechanical Parking Brake Control Module J540 under center console.

After replacing ESP Sensor Unit G419 with Electro-Mechanical Parking Brake Control Module J540, the ABS Control Module J104 must be coded and a basic setting of "Brake system" (Electro-Mechanical Parking Brake) must be performed.

CAUTION: Strong vibrations (e.g. falls, impacts) can destroy the ESP Sensor Unit G419. ESP Sensor Unit G419 must then no longer be used.

Removing
- Remove center console.





- Disconnect connector - 1 - from ESP Sensor Unit G419.
- Remove three nuts - arrows -.
- Remove ESP Sensor Unit G419.

Installing
- Installation is in reverse order of removal.

When installing ESP Sensor Unit G419, be sure it is properly seated on bracket and is free of tension.

Note:
^ Do not use the securing nuts to forcibly position the ESP Sensor Unit G419.

- Tighten securing nuts to 9 Nm.
- Perform ABS Control Module J104 coding using in "Guided Fault Finding".

A Steering Angle Sensor G85, Transverse Acceleration Sensor G200, Brake Pressure Sensor 1 G201 and Longitudinal Acceleration Sensor G251 basic setting must be done.
- Perform basic setting for "Brake system" (Electro-Mechanical Parking Brake).