911 GT2 (996) F6-3.6L Turbo (2003)
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.
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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.
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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.
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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.
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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),
See Conversion of Rate-of-Turn Sensor.
First version: Rate-of-turn sensor with part No. 996.606.147.00
New/current version: Rate-of-turn sensor with part No. 996.606.145.00.
Removal