B340714

TIS Service Bulletin
Page 1 of 1
SI B34 07 14
Brakes
November 2018
Technical Service
Carbon Ceramic Brake Noise
New information provided by this revision is preceded by this symbol
.
This Service Information bulletin replaces SI B34 07 14 dated January 2015
What’s New:
• Model update:F90 Added
MODEL
F06 (M6 Gran Coupe)
F10 (M5 Sedan)
F12 (M6 Convertible)
F80 (M3 Sedan)
F82 (M4 Coupe)
F83 (M4 Convertible)
F13 (M6 Coupe)
F90 (M5 Sedan)
SITUATION
Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop
CAUSE
Material-specific properties of the brake components
INFORMATION
“M” vehicles are designed for high-performance, spirited driving. To accommodate this type of driving profile, a braking
system which exceeds the standards for handling heavy brake forces, extreme temperatures, and excellent stopping
power at high speeds is required. “M” vehicles can be ordered with the optional ultra high-performance braking system,
featuring perforated carbon ceramic brake discs designed for circumstances similar to those encountered on
racetracks. The carbon ceramic brakes were designed to improve braking efficiency, and dramatically increase braking
performance along with a significant reduction in weight. When developing the carbon ceramic brake system, the main
focus was on braking performance for the sporty-minded driver, while accepting the comfort limitations of functional
noises at slower speeds and when coming to a stop.
Please inform the customer that the carbon ceramic brake system’s functional noises (squealing/honking), are a known
characteristic for this type of material, and are only a small trade-off for the improved braking performance. These
functional noises have no effect on the performance, operational reliability and durability of the brakes.
Part replacement will not provide a remedy for the noise; this is a known characteristic of the high-performance brake
system.
More information on the performance and operation of these brakes can be found in the Owner’s Manual under “M
carbon ceramic brake.”
WARRANTY INFORMATION
Not applicable.
Posted: Thursday, November 15, 2018
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