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b
c
da
If your brake system works with DOT brake uid, the latter
needs to be replaced regularly according to the intervals pre-
scribed by the manufacturer.
The manufacturers of disc brakes usually deliver their products
with detailed instructions. Be sure to read them carefully before
removing a wheel or doing any maintenance work.
Disc brakes get hot in use. For this reason do not touch the bra-
kes directly after stopping, especially after a long downhill ride.
Do not open the brake lines. Brake uid can be very unhealthy
and damaging to the paint if it leaks out.
5.3.1 Checking Hydraulic Disc Brakes.
Regularly check the lines (b) and connections for leaks while pulling on
the lever. If brake uid leaks out, contact your BMW partner immediately,
as a leak can render your brakes ineffective.
Check the pads for wear by inspecting the thickness of the braking
material attached to the backing plate within the brake calliper (c) or
view through the window on the upper side of the calliper (d). If there is
approximately 1mm of material left on each brake pad, remove the pads
according to the manufacturer’s instructions, check them thoroughly
and replace them, if necessary.
Dirty brake pads and rotors can lead to drastically reduced
braking power. Therefore, make sure the brake remains free of
oil and other uids, especially when you clean your bicycle or
grease the chain. Dirty brake pads can under no circumstances
be cleaned, they must be replaced! Rotors can be cleaned
with warm water and mild soap. There are also special brake
cleaners available.
Loose connections and leaky brake lines drastically impair
braking power. If you nd leaks in the brake system or buckled
lines, contact your BMW partner immediately.
The manufacturers of hydraulic disc brakes usually deliver their
products with detailed instructions. Be sure to read them care-
fully before removing a wheel or doing any maintenance work.
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