Checking The Brake Discs; Checking Brake Fluid Level; Checking Fluid Level In The Closed Brake Fluid Reservoir - 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)

Checking brake fluid level

Checking fluid level in the closed
brake fluid reservoir
The procedure for checking the level in the left brake
fluid reservoir is described below. The procedure for
checking the level in the right brake fluid reservoir is
analogous.
e
Caution:
The fluid level in the brake fluid reservoir must be at
the "MAX" mark with new brake pads. It is not pos-
sible to check the maximum fill level at the inspec-
tion glass. It is not possible to check the maximum
fill level at the inspection glass. For details of the
correct procedure see Checking fluid level in the
open brake fluid reservoir.
•
Turn the handlebars to full left-hand lock.
L
Note:
The volume of the brake fluid (MIN/MAX) is sufficient
for lining thicknesses from new to the wear limit. It is
not normally necessary to top up the fluid to accom-
modate lining wear.
A level below MIN indicates the possibility of other
faults.
C1340420
•
Check the level of brake fluid in the inspection
glass.
MIN (arrow)........................................Minimum level
indicating that the pads are worn to the wear limit
d
Warning:
The brake fluid level must never be allowed to fall
below the MIN mark (arrow) which indicates the min-
imum permissible level. Otherwise, there is a danger
that air will be drawn into the braking system as the
brakes are operated.
C1340430
34.29