Brake Bleeding: Service and Repair

Read and comply with General Data, refer to Brakes and Traction Control, Description and Operation.





Connect DIS.
Call up service function "Bleeding ABS/DSC3 Hydraulics".

Connect brake fluid changer to expansion tank and switch on.

Note: Check relevant operating instructions for each device. Charging pressure must not exceed 2 bar.





Flushing brake system completely

Attach bleed hose with container to bleed valve on rear right brake caliper.

Open bleed valve and flush until clear, bubble-free brake fluid emerges.

Close bleeder valve.

Follow same procedure on wheel brakes rear left, front right and front left.





Bleeding rear-axle brake circuit

Attach bleed hose with container to bleed valve on rear right brake caliper.

Open bleed valve.

Allow bleeding procedure with DIS to take its course with bleed valve open.

After procedure is completed, press brake pedal down fully 5 times; clear, bubble-free brake fluid must emerge.

Close bleeder valve.

Repeat procedure at rear left.





Bleeding front-axle brake circuit

Attach bleed hose with container to bleed valve on front right brake caliper.

Open bleed valve.

Allow bleeding procedure with DIS to take its course with bleed valve open.

After procedure is completed, press brake pedal down fully 5 times; clear, bubble-free brake fluid must emerge.

Close bleeder valve.

Repeat procedure at front left.





Switch off brake fluid changer and remove from expansion tank.

Check brake fluid level.

Close expansion tank.

Note: Take care of rubber gasket (1) in lid.