BREMBO brake bedding-in procedure
The following is taken from the Brembo High Performance brake pad catalogue 2013 (see page 43).
RS3 and TTRS owners may find this procedure needs to be undertaken following the Audi 47i6 brake upgrade:
"It is very important to follow proper brake bedding procedure following installation. This is necessary not only for optimum performance of the system, but also to avoid onset of judder (vibration felt through brake and steering).
When fitting pads to used discs, the discs must be in good condition and be within the original manufacturers manufacturing tolerances. In case of any doubt, new discs should be fitted.
Be aware that with new brake system components, the braking performance will be reduced until the pads and discs are fully bedded. Use extreme caution while driving the vehicle under these conditions. If done on public roads obey all traffic laws and do not endanger yourself or others.
The purpose of this procedure is to gradually increase the temperature in the components without thermal shock and to mate the brake pad and disc friction surfaces, generating a uniform transfer layer.
Perform at least 20 brake applications using medium deceleration (approximately 60% of maximum) starting from 60mph and slowing to 20mph. Do not come to a stop. Accelerate back to the starting speed allowing 20-30 seconds before beginning the next brake application. After completion, drive the vehicle for at least 5 minutes with little or no braking in order to adequately cool the components.
When it can be done legally, or on a closed circuit, a secondary bedding operation is beneficial.
Repeat the above procedure for 5 to 10 brake applications increasing the starting speed to 80mph and increasing the deceleration rate to 80% of maximum. After completion, drive the vehicle for at least 10 minutes with little or no braking in order to adequately cool the components. The system is now ready for normal use.
This entire procedure must be complete before driving the vehicle as normal. It is especially important that this process is completed before any extended same-speed driving is done (i.e. Motorway travel). Failure to follow these instructions greatly increases the likelihood of judder development."