Disclaimer2020 Porsche Boxster S (986) F6-3.2L Technical Service Bulletin # 1/01 Date: 010329
Brake Booster - Design Update
Boxster
1/01 4770
Binder - Group 4, Running Gear
03-30-01
Brake Booster / Spare Parts Requirements
Vehicle Type:
Boxster / Boxster S
Model Year:
As of '97 (V)
Concerns:
Brake booster
Information:
A modification in the body firewall has dictated a modification in the brake booster bellows. The brake replacement booster is supplied with the
new style bellows. It is not possible to retrofit the new style bellows to the older vehicles. See VIN list below.
In the case of vehicles produced before the introduction date stated below, the fitted bellows must be exchanged first before the brake booster is
replaced.
Introduction:
September 13, 1999
VIN's:
98 XYS 62 0322 USA - Boxster
98 XYS 66 0090 USA - Boxster S
98 4YU 62 1423 USA - Boxster
98 4YU 66 0106 USA - Boxster S
Parts:
Spare Parts Requirements
2020 Porsche Boxster S (986) F6-3.2L Page 184
Parts Allocation
Repair Procedure:
The following measures are necessary before the installation of a new brake booster (996 355 923 00) in vehicles before the stated introduction
date:
- Remove the plastic bellows fitted on the new brake booster.
- Pull the short bellows off the old, removed brake booster (996 355 930 00) and the grommet (996 355 221 00). Use these parts for holding the
second bellows off the push rod. If necessary (e.g. if damaged), replace the bellows and the grommet.
The previous second bellows (996 423 269 04) remain fitted on the body tirewall. If necessary (e.g. if damaged), replace the bellows.
- Fit the previous short bellows (996 355 930 00) instead of the removed plastic bellows on the new brake booster.
- Fit the previous grommet (996 355 221 00) on the push rod of the new brake booster.
- Install the brake booster in the vehicle, as described in the Technical Manual, Group 4.
Literature:
Boxster Technical Manual, Group 4:
> Repairs: 47 70 19 - Removing and installing brake booster.