Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Abs Mark 70 (Abs/ASR) Overview
- Brake Line
- 14 Nm
- Master brake cylinder/primary piston circuit for the ABS Hydraulic Unit -N55-.
- Identification: Tube fitting with threads M12 x 1.
- Brake Line
- 14 Nm
- Master brake cylinder/secondary piston circuit for the ABS Hydraulic Unit -N55-.
- Identification: Tube fitting with threads M12 x 1.
- Brake Booster with Master Brake Cylinder
- On gasoline engines, the required vacuum is supplied either by the intake manifold or by a vacuum pump.
- Functional check:
-- Forcefully press brake pedal several times with engine switched off. This dissipates any vacuum present in the unit.
-- Depress and hold brake pedal with average foot pressure and start engine. If brake booster is working properly, pedal will be felt to give noticeably under foot (booster assistance becomes effective).
- If malfunctioning: replace as complete unit.
- See, refer to REMOVAL AND INSTALLATION .
- Brake Booster, Removing and Installing, refer to BRAKE BOOSTER .
- Brake Master Cylinder, Removing and Installing, refer to MASTER BRAKE CYLINDER .
- Brake Line
- 14 Nm
- To left rear brake caliper/brake cylinder.
- Identification: Tube fitting with threads M12 x 1.
- Brake Line
- 14 Nm
- To the right rear brake caliper/brake cylinder.
- Identification: Tube fitting with threads M10 x 1.
- Rubber Insulation
- Do not press the rubber bushings out of the bracket when installing the mount.
- Bracket
- Is attached to the body.
- Nut
- 8 Nm
- Quantity: 2
- Bolt
- 8 Nm
- Quantity: 2
- Bracket
- ABS Hydraulic Unit -N55-
- Removing and Installing, refer to ABS Control Module -J104- /ABS Hydraulic Unit -N55- .
- Bolt
- 5.5 Nm
- Quantity: 3
- Always replace if removed.
- ABS Control Module -J104-
- Removing and Installing, refer to ABS Control Module -J104- /ABS Hydraulic Unit -N55- .
- Disconnect from the ABS Hydraulic Unit -N55-, refer to ABS Control Module -J104-, SEPARATING FROM THE ABS Hydraulic Unit -N55-, MARK 70 ABS/ASR .
- Brake Line
- 14 Nm
- ABS Hydraulic Unit -N55- for the master brake cylinder/primary piston circuit.
- Identification: Tube fitting with threads M12 x 1.
- Brake Line
- 14 Nm
- To the left front brake caliper.
- Identification: Tube fitting with threads M10 x 1.
- Brake Line
- 14 Nm
- To the right front brake caliper.
- Identification: Tube fitting with threads M12 x 1.
- Brake Line
- 14 Nm
- ABS Hydraulic Unit -N55- for the master brake cylinder/secondary piston circuit.
- Identification: Tube fitting with threads M12 x 1.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.