Installing Rear Disc Brake Pads

Information 

• The back of the pad backing plates must not be greased. 
• Check the brake discs for wear. 

  > 4600TW TECHNICAL DATA/BRAKE WEAR LIMIT .

  > 465302 CHECKING REAR BRAKE DISCS - WEAR ASSESSMENT .

  > 465402 CHECKING REAR PCCB BRAKE DISC (WEAR ASSESSMENT) .

• Disc brakes must be clean and free of grease. 
• The core of the warning contact wire must not be left exposed! It does not matter if the insulation is worn. 
• If necessary, remove a little brake fluid from the reservoir by suction in order to prevent an overflow when the disc brake pads are pushed back. 
• Observe specified tightening torques. 

1. Insert new pad retaining springs.
   WARNING: Installation of brake pads with the wrong brake pad quality 

   • Longer braking distance 
   • More wear on brake pads 

     → Only use the type-specific brake pads listed in the Porsche Spare Parts Information.

     → Replace the brake pads when the brake pad wear warning light comes on, but no later than when there is a residual pad thickness of 2 mm on each axle.

     → Replace the brake discs on each axle as soon as the brake disc wear limit is reached.

2. Insert disc brake pads in reverse order to removal -Arrow-  .

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   Installation direction of brake pad

3. Install brake calliper -1-  .

   Check that the brake hoses are routed correctly (do not twist the brake hose).

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   Brake caliper rear

   1. 3.1 Tighten screws.
   1. 3.1.1 When re-using the screws: > Tightening torque 85 N.m (62.7 ft lb.) 
   2. 3.1.2 For new screws (initial tightening): > Initial tightening 30 N.m (22.1 ft lb.)  > Final tightening + 75° 
4. Install cables -2-  and contacts -3-  for brake pad wear indicator.

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   Brake wear cable with contacts

   1. 4.1 Fit contacts for -3-  brake pad wear indicator on the brake pads.
   2. 4.2 Insert cable into the guide on the brake calliper -Arrow-  .
   3. 4.3 Connect cable plug -2-  for brake pad wear indicator and clip it in at the holder.
5. Position disc brake pads by operating the brake several times.
6. Check brake fluid level and correct it if necessary.

   The brake fluid level must be between the MIN and MAX markings > Min/Max markings for brake fluid  .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Min/Max markings for brake fluid