Brake − General; Brake Booster - Porsche 996 TT Repair Manual

einordnung
Screw the 2 assembly aids (assembly pins), instead of 2 wheel bolts, into the wheel hub. During removal, first
remove the 3 remaining wheel bolts and remove the wheel carefully, without touching the brake discs!
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Brake − General
The brake fluid change is the same as with the 911 Turbo (996).
Bleeding of the GT2 is described in a new chapter.
The 911 GT2 is equipped as standard with the new Porsche Ceramic Composite Brake (PCCB). The brake
calipers, 6−piston on the front axle and 4−piston on the rear axle, are painted yellow.
The GT2 is equipped with 3−channel ABS (ABS 5.3) without PSM and without TC (Traction Control).
Because of the larger brake−disc diameter in the PCCB, the fastening screws of the front−axle and rear−axle
brake calipers are 85 mm long and gold−coloured to differentiate them.
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Brake booster

When replacing the brake booster, observe the correct allocation according to the Spare Parts catalogue!
Altered transmission ratio (boost factor) compared to the 911 Turbo (996).
Boost factor 911 GT2 = 3.15 : 1. Boost factor 911 Turbo (996) = 3.85 : 1.
996840, 996841
Wheel removal/installation 1819