Upper Control Arm

Upper Control Arm

Special tools, testers and auxiliary items required

• Engine-/Gearbox Jack (V.A.G 1383 A)

• Wheel Hub Support (T10149)

• Torque Wrench 5-50 Nm (V.A.G 1331)

• Ring Spanner Insert, 16 mm (V.A.G 1331/12)

• Torque Wrench 40-200 Nm (V.A.G 1332)

• Vehicle Diagnostic Tester with diagnostic cable

Removing

- Place the vehicle on a hoist. Refer to => [ Positioning Vehicle on Hoist and Wheels ] Positioning Vehicle on Hoist and Wheels.

- Remove the tower brace. Refer to => [ Tower Brace ] Front Suspension.

- Remove wheel trim cap, remove cover cap on light-alloy wheels (removal hook in vehicle tool kit).

- Remove the wheel.

- Secure the brake disc with a wheel bolt.

- Remove the bolt - 1 -.






- Remove the bolt - 3 -.






- Remove the brake line and wires from the bracket on the wheel bearing housing.

- Turn the wheel hub until one of the holes for the wheel bolts is on top.

- Install the (T10149) - 1 - with wheel bolt on wheel hub.






- Support wheel bearing housing over the (T10149) with (V.A.G 1383 A).

• Do not lift or lower the vehicle if the engine/transmission holder is below it.

• Do not leave the engine/transmission holder under the vehicle longer than is necessary.

- Remove the bolt - 1 -.






The slits in the wheel bearing housing must not be widened using a chisel or similar tool!

- Remove booth joint pins in the upper control arm - 2 - from the wheel bearing housing.

• Do not lower wheel bearing housing more than necessary.

- Remove the nut - arrows - and swivel the air spring damper downward and out of the suspension strut tower.






The air spring damper remains inside the vehicle.

• Be careful not to damage any components.

- Remove the bolt - 4 and 3 - and remove the front upper control arm and the rear upper control arm.






Installing

Install in reverse order of removal. Note the following:

Tightening specifications, refer to => [ Air Spring Damper, Shock Absorber Fork, Upper Control Arm and Tower Brace Overview ] Air Spring Damper, Shock Absorber Fork, Upper Control Arm and Tower Brace Overview

• Bonded rubber bushings can only be turned to a limited extent. Only tighten suspension bolts when vehicle is in curb weight or control position. Refer to => [ Wheel Bearing, Raising to Control Position to Tighten Bolts ] Front Suspension.

- Insert the upper control arm and the bolt - 4 and 3 - hand-tight.






- Insert both of the upper control arm joint pins - 2 - in the wheel bearing housing and insert the bolt - 1 -.

- Install the air spring damper into the suspension strut tower and tighten the nuts - arrows -.






- Install the threaded connector - 3 - but do not tighten it.






- Tighten the threaded connection - 1 -.






• Push the upper control arms down as far as possible while tightening the bolts!

- Lift wheel bearing in control position. Refer to => [ Wheel Bearing, Raising to Control Position to Tighten Bolts ] Front Suspension.

• Push the upper control arm toward the inside of the vehicle when tighten the bolt - 3 - or - 4 -.

- Tighten the bolt - 4 or 3 -.

- Tighten the rest of the threaded connections.

- Mount wheel and tighten.

- Place vehicle on wheels. Refer to => [ Positioning Vehicle on Hoist and Wheels ] Positioning Vehicle on Hoist and Wheels.

- Axle alignment is required. Refer to => [ When Vehicle Alignment is Necessary ] When Vehicle Alignment is Necessary.