To prevent brake fluid overflow when caliper pistons are pushed back, siphon some fluid out of brake master cylinder reservoir.
This procedure is applicable to both front and rear brake pads.
— Raise car and remove wheels.
Make sure the car is firmly supported on jack stands designed for the purpose. Place the jack stands beneath a structural chassis point. Do not place jack stands under suspension parts.
^ Front brakes: Working in wheel housing, disconnect electrical connector (A) for brake pad wear sensor and remove harness from clip on strut body.
Front, bra :<e assembly if in I
1. Brake rotor
2. Brake rotor to bearing hub fasteners (M8)
Tighten to 23 Nm (17 ft-lb)
3. Brake caliper
Brake caliper to strut housing fastener (M12) Tighten to 70 Nm (52 ft-lb) Brake pads Anti-rattle cross spring Retaining pin
Rear brakes: Working at trailing arm, disconnect electrical connector (A) from brake pad wear sensor and remove harness from clip on trailing arm.
^ Use drift to drive brake pad retaining pins out while depressing anti-rattle cross-spring.
— Remove anti-rattle cross spring. Detach brake pad warning sensor wire from spring.
Remove brake pads from caliper with Porsche special tool P 86 or equivalent.
If brake pads are to be reused, mark original position.
Pry out brake pad warning contact from inner pad.
• Clean around contact and pry out carefully to avoid damage to sensor contact.
Push pistons back into caliper body with Porsche special tool P 83 or equivalent (Baum tool 1023/4 shown).
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