Checking The Brake Discs; Renewing Brake Fluid; (Inspection Iv) - BMW C1 Repair Manual

Checking the brake discs

•
Carefully check the brake discs for cracking,
damage, deformation and scoring
•
Measure the thickness of the brake discs at sev-
eral points with a calliper gauge
Wear values:
Front brake discs ......................... 4.0 mm (0.16 in)
Rear brake disc ............................ 4.0 mm (0.16 in)

Renewing brake fluid

(Inspection IV)

e
Caution:
Protect trim panels against contact with brake fluid
e
Caution:
Refer to notes on the hazards involved in handling
brake fluid
e
Caution:
For safety reasons, the brake fluid must be changed
annually
The brakes must be bled and checked to ensure
that they are in full working order
C1340420
Vehicles with ABS
e
Caution:
It is necessary to bleed the ABS hydraulic unit
(MoDiTeC)
•
Connect commercially available vacuum extrac-
tor to the bleed screws of the brake calliper
•
Force the pistons fully back into the brake calli-
pers
L
Note:
This description applies for the brake filling and
bleeding unit with extraction of the brake fluid by a
partial vacuum at the brake calliper.
If other devices are used, comply with their manu-
facturers' instructions.
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