3340A12 ABS HYDRAULIC AND ELECTRONIC CONTROL UNIT - Alfa - GT - eLearn

125001361 - 3340A12 ABS HYDRAULIC AND ELECTRONIC CONTROL UNIT

) Position the vehicle on a lift.Proceed with the removal Op. 5530B10 BATTERY - R+R.Proceed with the removal Op. 5530B52 BATTERY DRIP TRAY/SUPPORT - R.R..Proceed with the removal Op. 4450B02 LEFT FRONT WHEEL R R.Proceed with the removal Op. 3330C30 BRAKE FLUID RESERVOIR - R + R AND WASH INSIDE.1. Disconnect the electrical connection from the ABS hydraulic and electronic control unit.

	Description	Connector
1	ABS control unit	See M50 ABS CONTROL UNIT ( FRONT )

2. Undo the connectors (2a) and (2b) and remove the rigid pipes from the master cylinder to the A.B.S. hydraulic control unit (2c).3. Undo the connectors (3a) and disconnect the rigid pipes from the hydraulic control unit to the brake calipers (3b), hydraulic control unit side.4. Release the A.B.S. pipes from the fastenings.

1. Disconnect the electrical connection from the VDC system pressure sensor.

	Description	Connector
1	Pressure sensor (VDC)	See K72 PRESSURE SENSOR VDC ( FRONT )

2. Remove the clips (2a) and remove the ABS electronic and hydraulic control unit (2b).

Refitting ( Removing

)

The letters indicating to which caliper and to which brake pump outlet they should be connected are stamped on the control unit at each outlet.RR = to the right rear brake (pipe marked with light blue band)LR = to the left rear brake (pipe marked with green band)RF = to the right front caliper (pipe marked with yellow band)LF = to the left front caliper (pipe marked with white band)MC1 = from the main circuit pump/flange side (pipe marked with black band or pink band when the pipe polyammide resin is black)MC2 = from the secondary circuit pump/front (pipe marked with brown band).

Place the A.B.S. hydraulic and electronic control unit in position and secure it using the clips.Connect the electrical connection to the VDC system pressure sensor.1. Connect the rigid pipes from the hydraulic control unit to the brake caliper (1a) hydraulic control unit side and tighten the connectors (1b) to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
1b	Connector	PIPE CENTRE RIGID BRAKING PIPE/REAR BRAKES	M10/M12	(Control unit side) 1.4 - 1.8

2. Secure the rigid pipes from the hydraulic control unit to the brake calipers to the fastenings.3. Place the rigid pipes from the master cylinder to the A.B.S. hydraulic control unit (3a) in position and tighten the connectors (3b) and (3c) to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
3b	Connector	PIPE FROM PUMP TO HYDRAULIC CONTROL UNIT	M12	(Master cylinder side) 1.4 - 1.8

	Fastening	Component	Ø	Value(daNm)
3c	Connector	PIPE FROM PUMP TO HYDRAULIC CONTROL UNIT	M12	(ABS control unit side) 1.4 - 1.8

4. Connect the electrical connection to the ABS hydraulic and electronic control unit.

Proceed with the refitting Op. 3330C30 BRAKE FLUID RESERVOIR - R + R AND WASH INSIDE.Proceed with the refitting Op. 5530B52 BATTERY DRIP TRAY/SUPPORT - R.R..Proceed with the refitting Op. 5530B10 BATTERY - R+R.Top up the brake-clutch fluid level Op. 0010T64 BRAKE AND OR CLUTCH FLUID CHECK LEVEL AND TOP UP AS NECESSARY.Bleed the air from the hydraulic braking system Op. 0010T65 HYDRAULIC BRAKE SYSTEM BLEED AIR.Proceed with the refitting Op. 4450B02 LEFT FRONT WHEEL R R.Remove the vehicle from the lift.