DISCLAIMER
Work Procedure
When installing a brake booster (996 355 923 00) with new bellows and seal in a vehicle produced before the introduction date specified, the
vehicle must be converted to the new seal.
The procedure is outlined in (soon to be released) supplement 51 for the Boxster Technical Manual, in Group 47 70 31.
The corresponding chapter in the Technical Manual (included in supplement 51) is enclosed with this Technical Information. Please use that for the
bases of the repair.
Note:
The following applies to MY'97 (V) Boxsters only:
In addition to the parts listed, in cases where the new brake booster with new seal is installed in vehicles of the model year '97 (V) for the first time,
the brake pedal (Fig. 2 shown item 14.1) must also be replaced.
The installation of a new brake pedal in the '97 model is necessary, as it is connected to the push rod by a self aligning bolt (Fig. 2 item 16) with a
diameter of 12 mm and a tab washer (Fig. 2 item 15).
As of model year '98 (W), the connection is made using a threaded pin (Fig. 2 item 16.1) with a diameter of 13 mm and a threaded bushing (Fig. 2
item 15.1).
The clip (Fig 2 item X) is no longer used in the new connection.
The following procedure is a short overview of the work to be carried out. Use the enclosed work procedure from supplement 51 to perform the
repairs.
1. Position vehicle on lifting platform and raise.
2. Remove all wheels (after conversion, the brakes must be completely bled).