Subframe With Attachments
Subframe with Attachments
Special tools, testers and auxiliary items required
• Torque Wrench (V.A.G 1332)
• Engine/Transmission Jack (V.A.G 1383 A)
Removing
• The vehicle must be resting on it wheels during any subsequent work where the drive axle collar bolt must be loosened. Depending on the bolt version, loosen the bolt on the drive axle. Refer to => [ Drive Axle Hex Bolt Connection, Loosening and Tightening ] Drive Axle Hex Bolt Connection, Loosening and Tightening, => [ Drive Axle Twelve-Point Bolt with Ribs, Loosening and Tightening ] Drive Axle Twelve-Point Bolt With Ribs, Loosening and Tightening or => [ Drive Axle Twelve-Point Bolt without Ribs, Loosening and Tightening ] Drive Axle Twelve-Point Bolt Without Ribs, Loosening and Tightening.
- Remove wheels.
- Remove coil springs. Refer to => [ Coil Spring ] Coil Spring.
- Remove the rear muffler.
- Disconnect the electrical wires to the Haldex clutch, ABS speed sensor and, on vehicles with a level control system sensor, the connectors and unclip.
- Remove the bolt - 2 - and washer - 1 -.
The washer - 1 - is installed on vehicles with an aluminum wheel bearing housing.
- Remove the clip - 1 -.
• Do not disconnect the brake line.
- Pry off the securing clip - 1 - for the brake cable.
- Push the parking brake lever - 2 - in direction of - arrow - and unhook the parking brake cable - 3 -.
- Remove the bolt - 1 - and remove parking brake cable - 2 -.
Vehicles with a Bracket for the Parking Brake Cable
- Remove bracket - 1 - by pressing out rivet inner pin - arrow -.
Continuation for All Vehicles
- Unclip the speed sensor wire out of the bracket - 1 - - arrows -.
- Disconnect brake lines, items - 1 and 2 -.
- Mark installation position of mounting bracket on body.
- Remove the bolts - arrows -.
- Check for a factory-applied marking (colored dot) on the joint washer and Haldex clutch flange - arrows -. If there is not one, mark the location of the joint washer and the Haldex clutch flange to each other - arrows -.
- Remove rear driveshaft tube from rear final drive with joint washer and vibration damper - arrows -.
- Remove the center bracket bolts - arrows - two turns.
- Support driveshaft at tunnel support with a piece of wood.
- Move rear driveshaft tube as far as possible in direction of transmission.
Before -LOOSENING- subframe bolts, secure vehicle against tipping over (for example load luggage compartment with approximately 50 kg).
- Place (V.A.G 1383 A) with (V.A.G 1359/2) below subframe and secure with strap.
- Remove bolts - 1 and 2 -.
• For the sake of a better illustration, only the left side of the vehicle is shown.
Applies to the Aluminum Subframe
- Carefully lower subframe with components.
• When lowering, make sure there is enough clearance between the brake lines, electrical lines and centering pins to the driveshaft.
Applies to the Steel Subframe
- Carefully lower the subframe with its components approximately. 2 cm.
- Unclip the brake line on both sides - arrow -.
• The clips will get damaged while doing this and will have to be replaced.
- Remove the brake line above the drive axle flange on the rear final drive - 1 - from the clips - arrows -.
• The clips will get damaged while doing this and will have to be replaced.
- Carefully lower subframe with components.
• Make sure there is enough clearance for brake lines, electrical lines and driveshaft centering pin when lowering.
Installing
Install in reverse order of removal. Note the following:
• Replace the damaged clips on the subframe for the brake line.
• A new brake line must also be installed when replacing an aluminum subframe. Refer to => Brake System 47 Removal and Installation and to the Electronic Parts Catalog (ETKA).
Attach the driveshaft to the rear final drive.
- The center of the subframe mount holes must be aligned to the bolting points on the body.
Tightening specifications, refer to => [ Subframe, Lower Transverse Link, Upper Transverse Link, Tie Rod and Level Control System Overview ] Subframe, Lower Transverse Link, Upper Transverse Link, Tie Rod and Level Control System Overview.
Tightening specifications, refer to => [ Wheel Bearing Housing, Wheel Bearing Unit, Trailing Arm with Mounting Bracket and Stone Deflector Overview ] Wheel Bearing Housing, Wheel Bearing Unit, Trailing Arm With Mounting Bracket and Stone Deflector Overview.
Tightening specifications, refer to => [ Shock Absorber and Coil Spring Overview ] Shock Absorber and Coil Spring Overview.
Tightening specifications, refer to => [ Stabilizer Bar Overview ] Stabilizer Bar Overview.
- Bleed the brake system.
- Perform headlamp basic setting. Refer to => [ Level Control System Sensor Overview ] Level Control System Sensor Overview.
- On vehicles with electronically-controlled damping (Audi magnetic ride), reprogram the control position using the vehicle diagnostic, testing and information system (VAS 5051).
- Axle alignment is required, see Table => [ An axle alignment is necessary when: ] Wheel Alignment.
• Checking and aligning front/rear suspension must take place on a VW/Audi recommended alignment stand.