911 Targa (996) F6-3.6L (2004)
-
Undo the brake lines on the hydraulic unit.
-
Remove the lines between the brake master cylinder intermediate piston circuit and the hydraulic unit.
-
Close the brake lines and the brake line connections with suitable plugs.
-
Disconnect plug from pressure sensor (vehicles with PSM).
-
Unlock/disconnect the control module connector on the hydraulic unit. Cover the plug connection and the plug.
NOTE:
-
In the case of assembly work on the hydraulic connections, the electrical plug connections on the hydraulic unit must always be connected.
-
This prevents the plug connections on the hydraulic unit or in the plugs inside from being splashed with brake fluid or water.
-
Any damp plug must be wiped dry before being disconnected from the plug on the hydraulic unit.
-
Brake fluid on electrical contacts (even thinned brake fluid) leads to corrosion and may cause faults in the system.
-
Undo and guide out the hydraulic unit. In the case of unfavourable tolerances, remove the hydraulic unit without the bracket for the hydraulic
unit.
Installation
1. Install in reverse order.
-
First connect the electrical plug connections on the hydraulic unit, so that the plug connections inside or on the hydraulic unit can not be
splashed with brake fluid or water.
-
After bleeding, check the assignment of the brake lines/solenoid valves to the correct brake calipers. Also carry out a system check or a swap
test with the PST 2 (Swap test menu item for vehicles with PSM).
2. Bleed brakes.
-
Pay attention to the following in the case of vehicles with ABS/TC (Traction Control) or PSM (recognisable by the rocker switch in the centre
console):
-
First bleed brakes as usual.
-
In the case of vehicles with ABS/TC (Traction Control), bleed the ABD circuit after the usual bleeding procedure. This is carried out with
the return pump running (activation with the Porsche System Tester) 'on rear right-hand bleeder valve'.
-
In the case of vehicles with PSM, after the usual bleeding procedure, 'bleed at front right-hand bleeder valve' with booster pump running
(activation with Porsche System Tester).
3. When replacing the hydraulic unit in vehicles with ABS/TC or PSM (4-channel system), code the control module (manual transmission or
Tiptronic).
4. Carry out the following tests: