911 Carrera 4 Cabriolet AWD F6-3600cc 3.6L SOHC (1990)
Hydraulic Control Assembly - Antilock Brakes: Service and Repair
This component is non-serviceable and must be replaced as a unit.
1.
Disconnect battery ground cable.
2.
Mark respective positions of wheel and wheel hub for reassembly, then remove right front wheel assembly.
3.
Remove wheel-arch inner panel.
4.
On 944S and 944 Turbo, disconnect braking-force regulator.
5.
Disconnect all brake lines, numbers one through six from hydraulic unit.
6.
On all models, disconnect ground wire, then remove mounting bolts from hydraulic-unit holder.
7.
Move hydraulic unit and holder out slightly to gain access to strain relief for 12-pole plug (no. three), then disconnect strain relief and remove
plug.
8.
Unclip ABS wire harness from hydraulic-unit holder, then remove hydraulic unit with holder.
9.
Reverse procedure to install, bleed brake system.