34 11 220 Removing and installing or replacing both front brake discs
WARNING: This page is about a different variant/trim than selected.
Special tools required: 34 1 280
IMPORTANT:
Brake discs must only be replaced in pairs (per axle).
Fit new brake discs only together with new brake pads.
Fit new brake discs only together with new brake pads.
Necessary preliminary tasks:
- Remove FRONT BRAKE PADS
After completing work, read and comply with notes on BREAKING IN NEW BRAKE DISCS / BRAKE PADS .
Release screws (1).
Remove brake caliper with brake anchor plate in direction of arrow and tie up.
Installation:
Tightening torque 34 11 2AZ
Check minimum brake disc thickness:
- Position special tool 34 1 280 at three measuring points in area (1) and measure.
- Compare measuring result and lowest value with SETPOINT VALUE .
IMPORTANT:
New brake pads may only be fitted if the brake disc thickness is greater than the MINIMUM BRAKE DISC THICKNESS
(MIN TH).
Release screw (1) and remove brake disc.
Installation note:
Replace screw (1).
Tightening torque 34 11 1AZ
Clean contract face of wheel hub thoroughly and remove any traces of rust if necessary.
Irregularities in the contact surface can cause distortion in the brake disc!
IMPORTANT:
When removing the brake disc: On no account strike the friction ring with a hammer or similar object! If necessary, carefully tap with a rubber hammer against the brake disc nave.