Necessary preliminary work
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
- Remove WHEELS .
- Remove BRAKE PAD WEAR SENSOR
Drive out retaining pins (1).
Remove expanding spring (2).
Pull out brake pads (3) with special tool 34 1 000 .
IMPORTANT:
Mark any worn brake pads.
In the event of one-sided brake pad wear, do not change brake pads round.
In the event of one-sided brake pad wear, do not change brake pads round.
Clean brake pads.
Do not grease backs of brake pads sleeve.
IMPORTANT:
When pressing down piston, note brake fluid level in expansion tank.
Overflowing brake fluid will damage the paintwork.
Overflowing brake fluid will damage the paintwork.
Turn piston back fully with special tool 34 1 050 .
Check minimum brake disc thickness:
- Position special tool 34 1 280 at three measuring points in area (1) and measure.
- Compare measurement 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).
IMPORTANT:
Do not grease brake pads and guides with brake pad paste.
Clean brake caliper.
Check dust boot (1) for damage and replace if necessary.
Clean contact surface (2) of brake piston.
NOTE:
After completing work:
- Fully depress brake pedal several times so that brake pads contact brake discs.
- When installing new brake pads at front and rear axles, brake fluid level must be brought up to "MAX" marking.
- Read and comply with notes on BRAKING IN NEW BRAKE DISCS/BRAKE PADS .
- When replacing pads, reset CBS display in accordance with factory specification.