911 Carrera 4 Cabriolet (996) F6-3.4L (1999)
2. Remove cover -A- from the hydraulic unit.
3. For the removal of the booster pump, carry out the following removal steps:
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Remove suction line -2- for booster pump. Undo pressure pipe on the booster pump -3-. Close the lines and the pump connections with
suitable plugs.
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Release plug -4- -Arrow- and disconnect. Remove connector housing rearwards from out of the holder -Directional arrow-.
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Remove connector on pressure sensor (only present with PSM 5.3).
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Undo the three plastic fastening nuts -5- and remove the booster pump -1- with the holder -1a-.
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Installation
1. Install in reverse order.
2. Bleed the brakes.
NOTE:
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First bleed brakes as usual.
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Do not carry out booster pump activation with the Porsche System Tester 2 until after this has been done (after conventional bleeding) as
otherwise the booster pump can be damaged.
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To bleed at front on right with running booster pump, the bleeding device should remain connected (switched on). Bleeding pressure
approximately 2.0 bar.
3. Carry out the following tests:
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Read out and erase the fault memory of the PSM control module with the Porsche System Tester 2. Carry out a static test.
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Then start the engine. The PSM-related lights in the instrument cluster must go out when the engine is running.
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Read out the PSM fault memory again. There must not be any stored faults.