ABS MK II - VWClub.BG

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E = Outlet valve, ABS front rightF = Inlet valve, ABS front rightG = Main valve, ABSY2 = Warning lamp unitF2 = Fuse, solenoid valvesH1 = ABS warning lampK1 = Solenoid valve relayX8 = Plug, solenoid valvesX9 = Plug, main solenoid valveX10 = Plug, warning lamp unit 5-poleINSTALLATION POSITION OF COMPONENTSThe installation locations alwaysrefer to the direction of travel.5 = Stop-lamp switch6 = ABS hydraulic modulatorABS controller:- In footwell, front left at A-pillar.- Screw out fastening screws and remove controller.- Remove controller plug.Diagnosis plug:- Underneath gear-lever boot of center console.Stop-lamp switch:- Above brake pedal.Stop-lamp-switch adjustment:- Slightly depress brake pedal.- Hold 1 mm thick feeler gauge between pedal and stop-lamp switch.- Pull back brake pedal by hand as far as it will go.- Check function of stop lamps.ABS and brake warning lampThe ABS warning lamp is located on the right in the instrument panel.It can be removed from the front.The brake warning lamp is located in the instrument panel.Remove cover from relay fuse box (driver's-side footwell).1 = ABS controller2 = Wheel-speed sensor3 = Relay and fuse box4 = ABS warning lamp
Fuse location:16 = Fuse, ABS warning lamp20 = Fuse, stop lampRelay location:13 = Motor relay K2 (No. 78)14 = Valve relay K1 (No. 79)19 = Fuse, F1 pump motor20 = Fuse, F2 solenoid valvesNote: Numbers are only featured by OEM relays (installation numbers).Hydraulic modulator with brake master cylinder:- On left in engine compartment at bulkhead.- Compensating tank, pressure accumulator and pressure warning switchcan be replaced with hydraulic modulator in situ.1 = Compensating tank2 = Warning switch, brake-fluid level for ABS system3 = Warning switch, brake-fluid level4 = Pressure accumulator5 = Pressure warning switch6 = Ground, hydraulic modulator7 = Plug, pump motor8 = Plug, solenoid valves9 = Plug, main solenoid valveRemoval and installation of hydraulic modulatorRemoval:- Switch off ignition and disconnect ground strap at battery.- Dissipate accumulator pressure (press brake pedal approx. 20 times).- Detach all plugs and ground connections at hydraulic modulator.- Draw brake fluid out of reservoir.- Unscrew brake lines at hydraulic modulator and seal with suitable plugs.Removal:- Remove tray on left beneath instrument panel.- Remove pin and clevis of pushrod at brake pedal.
Page 3 and 4: Either the accumulator pressure or
Page 5 and 6: - Ignition off.- Pull plug off cont
Page 7 and 8: - Check wheel-speed sensor and lead
Page 9 and 10: - Dissipate accumulator pressure.*
Page 11 and 12: ADDITIONAL TEST STEPS* Specified ti
Page 13: B1 = Wheel-speed sensorHL = rear le
Page 17: Wheel-speed sensors/ring gear, fron

ABS MK II - VWClub.BG

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