Tightening torques for mechanical brake

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

MECHANICAL BRAKES TIGHTENING TORQUES

Location

Thread

Tightening torque [N.m] (ftlb.)

Brake caliper ⁽¹⁾ to front and rear axles

M12 x 1.5

85 (63 ftlb.)⁽¹⁾

Brake disc to wheel hub (front and rear axles)

10 (7.5 ftlb.)

Brake cover plate to front and rear axles

10 (7.5 ftlb.)

Speed sensor to front and rear axles

10 (7.5 ftlb.)

Brake unit on body (aluminium interm. part)

23 (17 ftlb.)

Brake unit support on body

23 (17 ftlb.)

Parking brake console to body

23 (17 ftlb.)

Bracket for hydraulic unit on body

10 (7.5 ftlb.)

Hydraulic unit on holder

12 (9.0 ftlb.)

Booster pump for PSM on holder

7 (5.0 ftlb.)

Booster pump for PSM on body at front

4 (3.0 ftlb.)

Wheel to wheel hub ⁽²⁾

M14 x 1.5

130 (96 ftlb.)⁽²⁾

⁽¹⁾	Replace the brake caliper fastening screws on the front and rear axles every time they are removed. Pay attention to the correct length of the fastening screws! The fastening screws of GT3 and C4S differ in a number of respects from those of the 911 Carrera (996).

⁽²⁾	Thinly grease thread, shank and under head (between screw head bearing surface and spherical cap ring) of the wheel bolts with Optimoly TA (aluminium paste). Do not grease bearing surface of the spherical cap facing the wheel. If heavily contaminated, clean bolts first with a lint-free cloth.