911 Turbo Cabriolet (996) F6-3.6L Turbo (2004)
Hydraulic Control Assembly - Antilock Brakes: Service and Repair
Removing and installing hydraulic unit
Replacing the hydraulic unit
When replacing the hydraulic unit -D-, observe the following points!
3 hydraulic unit variants have been installed in the 911 Turbo (996) since the production launch. First version 996.355.955.51, modified version
996.355.955.57 and new/current version 996.355.955.58.
The first version 996.355.955.51 is no longer available since existing supplies have been used up. Instead of the first version 996.355.955.51, the
new/current version with part number 996.355.955.58 should be installed.
At the first installation of the new/current hydraulic unit 996.355.955.58 instead of the first version 996.355.955.51, ensure that the combination
hydraulic unit/rate-of-turn sensor is correct! This means: the hydraulic unit 996.355.955.58 can only be combined with the new/current rate-of-turn
sensor (part number 996.606.145.00). Replace the rate-of-turn sensor if necessary.
For the conversion of the first-version rate-of-turn sensor (part number 996.606.147.00) to the new/current version (part number 996.606.145.00).
First version: Rate-of-turn sensor with part No. 996.606.147.00