911 Carrera 2 Coupe F6-3600cc 3.6L SOHC (1990)
Further to 1: (Brake fluid change)*
The brake fluid change is subdivided into two steps.
1st step:
Change brake fluid of the brake master-cylinder circuits and clutch hydraulics (conventional). Also valid for bleeding of the brake
master-cylinder circuits and clutch hydraulics.
2nd step:
Change the brake fluid of the booster circuit (brake booster and lock control). Operate the lock solenoid valve with system tester 9288 and
remove brake fluid at each lock cylinder.
(* Bleeding the brake master-cylinder circuit and the clutch hydraulics: Same procedure as for 1st step for the brake fluid change.)
Use of an electric filling and bleeding machine is recommended to guarantee fast and practical replacement of the brake fluid.
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Pour new brake fluid in the supply tank until the level reaches the upper edge. Connect bleeder on the supply tank. Clamp the overflow hose
(venting) with a hose clamp.
Switch on bleeding machine.
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A bottle must be used to catch the escaping brake fluid and therefore be able to check it for dirt and air bubbles as well as to determine the brake
fluid consumption. Change volume for each wheel: approx. 250 cc. Bleed on both bleeder valves of each wheel.
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Also drain about 50 to 100 cc of brake fluid on the bleeder valve of the clutch slave cylinder.
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Switch off and disconnect the bleeding machine.
Remove hose clamp on the overflow hose (venting).
Note: The rear underside trim panel must first be removed for the next step (booster circuit). If applicable for reasons of space, unscrew and also
remove the engine splash guard. In addition, the battery should be in well charged condition.
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Connect System Tester 9288 in conjunction with connecting lead 9288/1 in the diagnostics socket in the passenger's footwell (underneath a cover).
Turn on ignition and tester. Select type of vehicle and PDAS system afterwards. Then go into the drive menu.
