Brakes, Front - Pedal Pulsation
Bulletin No.: 004/94Issued: 1127/94
Revised
Subject
FRONT BRAKE PEDAL PULSATION
Applicable Models
1988-91 929
Category: P
This bulletin was originally issued in 1993 in Category P, No. 002/93 on 5/19/93. The information in this bulletin supersedes all previously issued bulletins and the information contained.
APPLICABLE MODELS/VINS
DESCRIPTION
When applying the brakes, pulsation may be felt through the brake pedal. This condition may be caused by uneven wear on the brake rotor surface. A new pad has been established to reduce uneven wear on the brake rotor surface.
REPAIR PROCEDURE
1. Replace the brake pads with new brake pads.
2. If brake pulsation exists during braking, replace the brake pads with the now brake pads and machine the disc plate/brake rotors. A new disc plate/brake rotor has a thickness of 22 mm (0.87 in.) The minimum allowed disc plate/brake rotor is 20 mm (0.79 in.).
CAUTION:
BE AWARE OF THE MINIMUM ALLOWED THICKNESS (STAMPED ON THE SURFACE) WHEN MACHINING THE DISC PLATE/BRAKE ROTOR. If the thickness is below the minimum allowed, replace the affected disc plate(s)/brake rotor(s).
PARTS INFORMATION
WARRANTY INFORMATION
Warranty Type Code: A
Customer Comment Code: 83
Damage Code: 9E
Part Number Main Cause: See Parts Information
Process No.: E3001A (See Note Below)
PAD SET R&R (ONLY)
Operation Number: P0104BRX
Labor Hours: 0.5 (R & L sides)
DISC PLATE/BRAKE ROTOR R & R / MACHINING (includes Pad R & R)
Operation Number: P0102BRX
Labor Hours: 1.2 Hrs. (R & L sides)
Operation Number: P0102BMX (Rotor Machining Only, R & L sides)
Labor Hours: 0.4 Hrs.
NOTE:
1. The repair described in this Service Bulletin is covered under the new vehicle warranty for 36 months/50,000 miles. To process your warranty claim properly, you must use the Process Number (shown above) when submitting a claim via MDCS terminal.
2. This Process Number is not applicable to normal wear and tear of the brake pad. If the repair is performed after 12 months from the in-service date or after 12,000 miles, you must inspect the remaining thickness of the removed pad. If the remaining thickness of the pad is less than 3.0 mm (0.1 in.), it is considered normal wear and tear and only rotor machining (or replacement, if necessary) is covered under warranty. Pad replacement is not covered under warranty.
3. Your DCSM may inspect the remaining thickness of the replaced pads during the next visit and if the DCSM determines that the repair or claim is not proper, the claim may be denied.