Replacing the Boost Spring in MY' 00 and later vehicles:
Part Number Description
996 423 081 12 Boxster S New contoured version spring
996 423 081 11 Old version spring no longer available
996 423 881 06 Boxster - New contoured version spring
996 423 881 05 Boxster - Old version spring, no longer available
Replacing the Boost Spring in MY' 98, MY' 99 vehicles:
Part Number Description
986 423 081 11 Boxster - New (same version-not contoured) clutch spring
986 423 081 08 Boxster - Old version, no longer available
In addition to the new clutch spring, MY'98 and MY'99 vehicles must use a new clutch pedal and bolt.
Part Number Description
996 423 139 10 New Clutch pedal
996 423 315 06 Bolt
Clicking noise
To repair the clicking noise, follow steps 1 to 3 in sequence.
Step 1:
Cause:
Insufficient lubrication of the ball socket in the clutch master cylinder
Repair:
Spray the ball socket in the master cylinder with spray lubricant (figure 3). If this does not eliminate the noise, continue with step 2.
Part Number Description
000 043 204 40 New/Spray lubricant
Note:
As from October 1, 1999 the master cylinder has been modified in the area of the ball socket.
Work Procedure
Step 2:
Cause:
The spring of the boost spring touches the spring casing (see also squeaking).
Repair:
Install a new contoured version clutch assist spring in MY'00 and later vehicles. Replace the boost spring in MY'98 and MY'99 vehicles. If this