Brake Pads Front, Replacing

Brake pads front, replacing

Removal

Note! Minimum thickness for replacing the brake pads = 2 mm.

Remove the retaining spring and locating pins





Remove:
- the retaining spring (3) carefully so that it does not deform
- the protective caps (1) from the two locating pins (2)
- the locating pins, use hex socket 7 mm.

Remove the brake caliper and brake pads





Remove:
- the brake caliper from the holder
- the brake pads.
Hang the brake caliper by a steel wire from the front spring so as not to damage the brake hose.

Note! Do not depress the brake pedal while the brake pads are removed.

Clean and check the brake caliper and dust cover




Clean and check the brake pad mating surfaces in the brake caliper and caliper holder.
Clean the sliding pins using a steel brush.
Check the piston dust boot. Replace the dust boot if it is damaged.

Note! If the dust boot is damaged dirt may have penetrated the cylinder. The brake caliper must be reconditioned. See Reconditioning front brake calipers Reconditioning Front Brake Calipers.

Check the brake disc




Check brake disc friction surfaces.
If the brake disc displays signs of out-of-true, check its lateral run out. See Brake disc front, calibrating Brake Disc Front, Calibrating.
Replace the brake disc if it displays signs of heavy wear, variable thickness or similar. To replace, see Replacing front brake discs, B5244T5, B5254T2 Replacing Front Brake Discs.

Note! Minimum recommended disc thickness / replacement limit = 23.0mm. Minimum recommended disc thickness when installing new brake pads = 23.8mm.For 16" brake discs the minimum thickness / replacement limit = 25mm. Minimum recommended disc thickness when installing new brake pads = 25.8mm.

Installation

Lubricating the sliding surfaces




Lubricate the contact surfaces of the brake pads using silicone grease, part no. 1161687 (12 ml) or part no. 1161688 (50 ml)
(Do not lubricate the sliding pins)

Refit the brake lining and brake caliper




Press piston back into cylinder on brake caliper.
Check that the dust cover is correctly positioned.

Install:
- new brake pads
- the brake caliper.

Install the locating pins in the brake caliper




Check the rubber sleeves of the locating pins. Replace if necessary.
Insert the locating pins in the rubber sleeves.
Tighten the locating pins. Tighten to 30 Nm. Install the protective caps (1).
Install the retaining spring (3).

Check the brake fluid level in the reservoir




Depress the brake pedal a few times. Check the level of the brake fluid reservoir.
Top up if necessary.

Mount the wheels.
Installing wheels Service and Repair.