Problems With Disc Brakes - Bosch KB069 RW Series Translation Of Original Operating Instructions

9.2.6

Problems with disc brakes

Symptom Cause
Ringing and unusual
sounds from the disc Riding on tarmac with off-road tyres
brake
Dirty or greasy brake disc
Worn brake disc
Low braking power from
the disc brake
Worn brake lining
Brake lining vitrification
Metallic noises from disc
Worn brake linings.
brake
Spongy, soft or poor Brake calliper fitted incorrectly, brake
pressure point in disc disc loose, brake disc or brake lining
brakes worn or brake system leaking.
Dirt
Worn or incorrect brake linings
Wheel, hub or axle fitted incorrectly.
Brake calliper and/or brake disc fitted
incorrectly
Noises when a disc brake
is applied
Incorrect torques
Brake disc damaged by side impact
Vitrified brake linings
Brake system leaking
Incorrect brake mount height
Table 79: Disc brake error solution
MY23K0a - 52_1.0_02.09.2022
Troubleshooting, fault clearance and repair
Remedy
 Contact specialist dealer. Fit a city or trekking tyre.
 Clean brake disc thoroughly with white spirit or brake cleaner.
 Contact specialist dealer. New brake disc.
 Contact specialist dealer. New brake linings.
 Contact specialist dealer. New brake linings and brake disc.
 Contact specialist dealer.
1 Clean brake disc and brake thoroughly.
2
If the problem is not solved, contact your specialist dealer.
 Contact specialist dealer. New brake linings and brake discs.
 Contact specialist dealer. Check brake system and wheel
assembly.
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