451519 Removing and installing rear speed sensor

WM 451519 Removing and installing rear speed sensor

Preliminary work

1. Remove the brake caliper and suspend it at a suitable position in the wheel arch (do not open brake hydraulics!).
Also protect the brake caliper (e.g. with a cloth or suitable rubber mat) to prevent damage to the paintwork. -> 474119 Removing and installing rear brake caliper - section on "Removing" 474119 Removing and installing rear brake calliper

Removing rear speed sensor





Speed sensor (shown as an example in illustration)

1. Release electric plug connection -1- from the speed sensor -2- ( -a- ) and pull it off -A-.





Removing rear speed sensor

2. Loosen fastening screw -3- for the speed sensor -2-.
3. Pull the speed sensor -2- out of the wheel carrier -4- ( -B- ).

Installing rear speed sensor

Information

- The speed sensor must be inserted using Optitemp (Optitemp LG2, 25-ml spray can available under Part No. 000.043.204.21).

- The bore for mounting the speed sensor must be free of dirt.

- Observe correct tightening torques.

1. Insert speed sensor -1- into wheel carrier -2-.





Fitting rear speed sensor

2. Fit fastening screw -3- for the speed sensor -1-. -> 4X00IN Tightening torques for anti-lock brake system (ABS) 4X00IN Tightening torques for anti-lock brake system (ABS)
3. Plug in electric plug connection -4- for the speed sensor -1- ( -A- ) and lock it -a-.

Subsequent work

Subsequent work for removing and installing speed sensor

1. Fit the brake caliper. -> 474119 Removing and installing rear brake caliper - section on "Installing" 474119 Removing and installing rear brake calliper