2.0L TFSI Engine
ABS Control Module and ABS Hydraulic Unit
Special tools, testers and auxiliary items required
• Torque wrench (V.A.G 1331)
• Torque wrench (V.A.G 1410)
• Brake pedal actuator (V.A.G 1869/2)
• Hose clamp pliers (VAS 6340)
• Engine bung set (VAS 6122)
Plug (1H0 698 311 A)
Install the transportation protection after removing the ABS hydraulic unit (N55).
The warranty on the ABS hydraulic unit will not be honored if there is no transportation protection.
1 Transport protection for valve domes (foam)
2 Sealing plugs M10
3 Sealing plugs M12
Removing
• Component location: The ABS control module (J104) is attached to the ABS hydraulic unit and is located inside the engine compartment on the right side.
1. ABS hydraulic unit with ABS control module
2. brake booster with tandem master cylinder
Do not bend the brake lines near the ABS hydraulic unit!
- Get the coding from the ABS control module and write it down.
Use the Vehicle Diagnostic Tester.
• Chassis
• Brake System
• Anti-lock braking system ABS/ASR Mark 70
• Function
• Check coding in the ABS control module J104
• Disconnect battery ground strap for all further work. See if a coded radio is installed. Get the anti-theft code beforehand, if necessary.
Danger of causing damage to electronic components when disconnecting the battery.
• Complete the steps for disconnecting the battery.
Vehicles with 2.0 L Gasoline Engine and Turbocharger
- Pull the engine cover upward at the attached points - arrows -.
- Open the clamps to remove the air guide hose from the air filter to the intake tube.
- Press the release button to remove the air guide hose - 1 -.
- Remove the air guide hose - 1 - and move it aside.
- Remove the screw - arrow - for the air guide pipe.
- Open the hose clamp - 2 - and remove the air guide pipe.
- Remove the intake hose between the intake hose and the turbocharger.
- Disconnect the turbocharger with the (VAS 6122).
Continuation for All Vehicles
- Remove the nuts - 1 - and remove the heat shield - 2 -, if equipped.
- Disconnect the connector from the ABS control module - in direction of arrow -.
- Insert (V.A.G 1869/2).
- Attach the bleeder bottle bleed hose - 1 - to the left front brake caliper bleed valve.
- Open the bleed valve.
- Attach the bleeder bottle bleed hose - 1 - to the brake caliper bleed valve/left rear brake cylinder.
- Open the bleed valve.
- Depress the brake pedal at least 60 mm with the (V.A.G 1869/2).
- Close left front and left rear bleeder valves.
• Do not remove (V.A.G 1869/2).
- Place a lint-free cloth under the ABS control module and the ABS hydraulic unit.
• Make sure no brake fluid gets onto contacts.
- Mark the master brake cylinder lines - A - and - B - and disconnect from the ABS hydraulic unit.
- Seal brake lines and threaded holes with sealing plugs (1H0 698 311 A).
- Mark brake lines (brake caliper) - 1 - to - 4 -, unscrew and seal.
- Remove the ABS hydraulic unit and the ABS control module in - direction of arrow - and pull upward out of the shock absorbers.
- Turn the ABS hydraulic unit with the ABS control module upside down.
- Remove the bracket from the ABS hydraulic unit inside the engine compartment.
- Remove ABS hydraulic unit with ABS control module.
Installing
Install in reverse order of removal. Note the following:
• Remove the plugs on the new ABS hydraulic unit only when installing the brake line.
• Brake fluid will leak out if the plugs are removed too early from the ABS hydraulic unit. The system will then not have sufficient brake fluid and will not adequately bled.
When installing, make sure the damper rubber is not pushed out of the console. Make sure the ABS hydraulic unit is secure after installing it otherwise malfunctions can occur.
- Make sure the rubber buffers fit correctly in the mounts when installing the engine cover.
Before installing the engine cover, make sure the 4 mounting elements (ball sockets) are correctly positioned; adjust them if necessary. Otherwise the engine cover will get damaged.
- Connect the battery.
- Remove (V.A.G 1869/2).
- Bleed the brake system. Refer to => [ Brake System, Bleeding ] Service and Repair.
If a new ABS control module was installed, it must be coded.
Use the Vehicle Diagnostic Tester.
• Chassis
• Brake System
• Anti-lock braking system ABS/ASR Mark 70
• Function
• ABS Control Module J104, coding
Tightening Specifications
