Air Spring Damper/Steel Spring Damper, Shock Absorber Fork, Upper Control Arm and Tower Brace Overview
Air Spring Damper/Steel Spring Damper, Shock Absorber Fork, Upper Control Arm and Tower Brace Overview
1 Suspension Strut Dome
2 Nut
• 30 Nm
• Loosen and tighten diagonally.
• Always replace if removed.
3 Bolt
• 20 Nm
4 Tower Brace
• Removing and installing, refer to => [ Tower Brace ] Front Suspension.
5 Bolt
• 20 Nm
6 Bolt
• 50 Nm + 90° turn
• Always replace if removed.
• Must be tightened in the control position. Refer to => [ Wheel Bearing, with Air Suspension, Lifting to Curb Weight Position ] Wheel Bearing, With Air Suspension, Lifting to Curb Weight Position or => [ Wheel Bearing, with Coil Spring, Lifting to Curb Weight Position ] Wheel Bearing, With Coil Spring, Lifting to Curb Weight Position.
7 Upper Rear Control Arm
• Removing and installing, refer to => [ Upper Control Arm ] Upper Control Arm.
• Bonded rubber bushing for upper rear control arm, removing and installing, refer to => [ Upper Control Arm Bonded Rubber Bushings ] Front Suspension.
8 Bolt
9 Washer
10 Wheel Bearing Housing
11 Nut
• 40 Nm
• Always replace if removed.
12 Steel Spring Shock Absorber
• Removing and installing, refer to => [ Steel Spring Shock Absorber ] Front Suspension.
• Servicing, refer to => [ Steel Spring Damper ] Overhaul.
13 Upper Front Control Arm
• Removing and installing, refer to => [ Upper Control Arm ] Upper Control Arm.
• Bonded rubber bushing for upper front control arm, removing and installing, refer to => [ Upper Control Arm Bonded Rubber Bushings ] Front Suspension.
14 Bolt
• 50 Nm + 90° turn
• Always replace if removed.
• Must be tightened in the control position. Refer to => [ Wheel Bearing, with Air Suspension, Lifting to Curb Weight Position ] Wheel Bearing, With Air Suspension, Lifting to Curb Weight Position or => [ Wheel Bearing, with Coil Spring, Lifting to Curb Weight Position ] Wheel Bearing, With Coil Spring, Lifting to Curb Weight Position.
15 Bolt
• Always replace if removed.
16 Lower Control Arm
17 Nut
• 90 Nm + 90° turn
• Always replace if removed.
• Must be tightened in the control position, refer to => [ Wheel Bearing, with Air Suspension, Lifting to Curb Weight Position ] Wheel Bearing, With Air Suspension, Lifting to Curb Weight Position.
18 Shock Absorber Fork
• Removing and installing, refer to => [ Shock Absorber Fork ] Front Suspension.
19 Bolt
• 40 Nm + 180° turn
• Always replace if removed.
20 Coupling Rod
21 Bolt
• 40 Nm + 90° turn
• Always replace if removed.
• Must be tightened in the control position. Refer to => [ Wheel Bearing, with Air Suspension, Lifting to Curb Weight Position ] Wheel Bearing, With Air Suspension, Lifting to Curb Weight Position or => [ Wheel Bearing, with Coil Spring, Lifting to Curb Weight Position ] Wheel Bearing, With Coil Spring, Lifting to Curb Weight Position.
22 Nut
• Always replace if removed
23 Air Spring Shock Absorber
• Removing and installing, refer to => [ Air Spring Damper ] Front Suspension.
• Servicing, refer to => [ Air Spring Damper ] Overhaul.
• Note different suspension versions. Refer to => [ PR Number Explanations ] Application and ID.
24 Connecting Piece for the Air Line and the Residual Pressure Retaining Valve
• Tightening specifications: 3 Nm
• Only remove if vehicle is raised and air spring damper is unloaded (otherwise, there is a risk of injury from lowering vehicle).
• If there are leaks, refer to => [ Air Pipe Line, Servicing ] Air Pipe Line, Servicing or => [ Air Pipe Line, Servicing ] Air Pipe Line, Servicing.
• Clean connections before loosening.
• Air escapes when connections are unscrewed.
• Protect threaded connection from dirt.
• Do not loosen the residual pressure retaining valve.