Rear Axle Overview
Rear Axle Overview
I - => [ Subframe, Stabilizer Bar, Coupling Rod and Stone Deflector Overview ]
II - => [ Lower Control Arm, Level Control System Sensor, Upper Front and Upper Rear Control Arms and Tie Rod Overview ]
III - => [ Air Suspension Strut and Crossmember Overview ]
IV - => [ Air Suspension Strut Overview ]
V - => [ Coil Spring Suspension Strut and Crossmember Overview ]
VI - => [ Coil Spring Suspension Strut Overview ]
VII - => [ Wheel Bearing Housing, Wheel Hub and Wheel Bearing Overview ]
VIII - => [ Drive Axle Overview, with Bolted Inner Joint ] Description and Operation or => [ Drive Axle Overview, with Bolted Inner Joint ]
Subframe, Stabilizer Bar, Coupling Rod and Stone Deflector Overview
- Arrow A - points in direction of travel.
1 Final Drive
2 Self-Locking Nut
• Always replace if removed
3 Bonded Rubber Bushing, Front
• Hydraulic support
• Replace, refer to => [ Subframe Bonded Rubber Bushing, Replacing ] Subframe Bonded Rubber Bushing, Replacing
• Installed position => [ Installation location of front bonded rubber bushing ] Subframe Bonded Rubber Bushing, Replacing
4 Stone Protection Plate
5 Expanding Rivet
6 Subframe
• Locating, refer to => [ Subframe, Securing ] Description and Operation
• Removing and Installing, refer to => [ Subframe ] Subframe
7 Bolt
• Always replace if removed
8 Self-Locking Nut
• 90 Nm + 90° turn
• Always replace if removed
9 Bolt
• 90 Nm + 90° turn
• Always replace if removed
10 Rear Bonded Rubber Bushing, Rear
• Hydraulic support
• Replace, refer to => [ Subframe Bonded Rubber Bushing, Replacing ] Subframe Bonded Rubber Bushing, Replacing
• Installed position, refer to => [ Installation Location of Rear Bonded Rubber Bushing ] Subframe Bonded Rubber Bushing, Replacing
11 Bolt
• 1 Nm
12 Right Connecting Link
• The aluminum coupling rod has been replaced with a steel one. Do not install both types together.
13 Stabilizer Bar
• Removing and installing, refer to => [ Stabilizer Bar ] Stabilizer Bar
14 Stabilizer Bar Mount
• Removing and installing, refer to => [ Stabilizer Bar ] Stabilizer Bar
• Installed position, refer to => [ Stabilizer Bar ] Stabilizer Bar
15 Bolt
• 50 Nm
16 Clamp
17 Left Connecting Link
• The aluminum coupling rod has been replaced with a steel one. Do not install both types together.
18 Self-Locking Nut
• 100 Nm
• Always replace if removed
19 Stabilizer Bar Mount
• Removing and installing, refer to => [ Stabilizer Bar ] Stabilizer Bar
• Installed position, refer to => [ Stabilizer Bar ] Stabilizer Bar
20 Expanding Rivet
21 Bolt
• 120 Nm + 180° turn
• Always replace if removed
22 Stone Protection Plate
23 Stone Protection Plate
24 Bolt
• 1 Nm
Lower Control Arm, Level Control System Sensor, Upper Front and Upper Rear Control Arms and Tie Rod Overview
- Arrow A - points in direction of travel.
1 Expanding Rivet
2 Stone Protection Plate
3 Lower Control Arm
• Removing and installing, refer to => [ Lower Control Arm ] Lower Control Arm
4 Subframe
• Removing and installing, refer to => [ Subframe ] Subframe
5 Self-Locking Nut
• Always replace if removed
6 Bolt
• 150 Nm + 90° turn
• Always replace if removed
7 Self-Locking Nu
• 90 Nm + 90° turn
• Always replace if removed
8 Bolt
• Always replace if removed
9 Bolt
• Always replace if removed
10 Self-Locking Nut
• 90 Nm + 90° turn
• Always replace if removed
11 Self-Locking Nut
• 180 Nm
• Always replace if removed
12 Eccentric Washer
13 Tie Rod
• Removing and installing, refer to => [ Tie Rod ] Rear Suspension
14 Eccentric Bolt
15 Eccentric Bolt
16 Eccentric Washer
17 Self-Locking Nut
• 180 Nm
• Always replace if removed
18 Left Rear Level Control System Sensor (G76) and Right Rear Level Control System Sensor (G77)
• Removing and installing, refer to => [ Vehicle Level Sensor ] Rear Suspension
19 Bolt
• 4 Nm
20 Self-Locking Nut
• 8 Nm
• Always replace if removed
21 Self-Locking Nut
• 8 Nm
• Always replace if removed
22 Upper Front Control Arm
• Removing and installing, refer to => [ Upper Front Control Arm ] Upper Front Control Arm
23 Bracket
24 Bolt
• 150 Nm + 90° turn
• Always replace if removed
25 Upper Rear Control Arm
• Removing and installing, refer to => [ Upper Rear Control Arm ] Upper Rear Control Arm
26 Washer
27 Self-Locking Nut
• Always replace if removed
28 Bolt
• 150 Nm + 90° turn
• Always replace if removed
29 Wheel Bearing Housing
• Removing and installing, refer to => [ Wheel Bearing Housing ] Service and Repair
30 Self-Locking Nut
• Always replace if removed
31 Self-Locking Nut
• With securing plate
• Always replace if removed
32 Bolt
• 150 Nm + 90° turn
• Always replace if removed
33 Bolt
• 150 Nm + 90° turn
• Always replace if removed
34 Self-Locking Nut
• Always replace if removed
Air Suspension Strut and Crossmember Overview
- Arrow A - points in direction of travel.
1 Crossmember
2 Clip
3 Bolt
• 60 Nm
4 Suspension Strut (air suspension)
• Can only be removed together with mounting bracket
• Removing and Installing, refer to => [ Air Suspension Strut ] Air Suspension Strut
5 Bolt
• 90 Nm + 90° turn
• Always replace if removed
6 Wheel Bearing Housing
• Removing and installing, refer to => [ Wheel Bearing Housing ] Service and Repair
• Servicing, refer to => [ Bonded Rubber Bushing ] Service and Repair
7 Self-Locking Nut
• Always replace if removed
8 Coupling Rod
• Removing and installing, refer to => [ Coupling Rod ] Coupling Rod
• The aluminum coupling rod has been replaced with a steel one. Do not install both types together.
9 Stabilizer Bar
• Removing and installing, refer to => [ Stabilizer Bar ] Stabilizer Bar
10 Self-Locking Nut
• 100 Nm
• Always replace if removed
11 Bolt
• 90 Nm + 120° turn
• Always replace if removed
Air Suspension Strut Overview
1 Bolt
• 30 Nm
• Quantity: 4
2 Bracket
3 Nut
• 60 Nm
• Always replace if removed
4 Rubber Mount
5 Seal
• Always replace if removed
6 Transport Protection
• Only install immediately after installing residual pressure retaining valve - item 7 - => [ (Item 7) Residual Pressure Retaining Valve ]
7 Residual Pressure Retaining Valve
• 8 Nm
• Observe important notes about removal and installation => [ If residual pressure retaining valve sticks, the vehicle must be on a hoist and the wheels must rotate freely in order to replace the valve. ] Residual Pressure Retaining Valve
• Removing and Installing, refer to => [ Residual Pressure Retaining Valve ] Residual Pressure Retaining Valve.
8 Seal
• Replace
9 Air spring
• Observe repair notes for servicing suspension struts (air suspension), refer to => [ Air Suspension Strut ] Rear Suspension
When the vehicle has been driven 200,000 km, if there is damage to an air spring, it is recommended that the opposite air spring is also replaced.
10 Buffer Stop
11 Nut
• 7 Nm
12 Cap
13 Shock Absorbers
• For the correct allocation, refer to the Parts Catalog
• Observe repair notes for servicing suspension struts (air suspension), refer to => [ Air Suspension Strut ] Rear Suspension
14 Seal
• Always replace if removed
• Grease with lithium grease
15 Boot
16 Clamp
Coil Spring Suspension Strut and Crossmember Overview
- Arrow A - points in direction of travel.
1 Crossmember
2 Self-Locking Nut
• 30 Nm
• Always replace if removed
3 Bracket
4 Bolt
• 60 Nm
5 Suspension Strut
• Can only be removed together with mounting bracket
• Removing and installing, refer to => [ Coil Spring Suspension Strut ] Coil Spring Suspension Strut
6 Bolt
• 90 Nm + 90° turn
• Always replace if removed
7 Wheel Bearing Housing
• Removing and installing, refer to => [ Wheel Bearing Housing ] Service and Repair
• Servicing, refer to => [ Bonded Rubber Bushing ] Service and Repair
8 Self-Locking Nut
• Always replace if removed
9 Coupling Rod
• Removing and installing, refer to => [ Coupling Rod ] Coupling Rod
• The aluminum coupling rod has been replaced with a steel one. Do not install both types together.
10 Stabilizer Bar
• Removing and installing, refer to => [ Stabilizer Bar ] Stabilizer Bar
11 Self-Locking Nut
• 100 Nm
• Always replace if removed
12 Bolt
• 90 Nm + 120° turn
• Always replace if removed
Coil Spring Suspension Strut Overview
1 Bolt
• 30 Nm
• Quantity: 4
2 Bracket
3 Self-Locking Nut
• 60 Nm
• Always replace if removed
4 Rubber Mount
5 Upper Spring Seat
6 Upper Washer
7 Upper Support
8 Protective Sleeve
9 Buffer Stop
10 Shock Absorbers
• For the correct allocation, refer to the Parts Catalog
11 Lower Washer
• In order to achieve a uniform height, coil springs must be installed with their spacers, refer to the Parts Catalog.
12 Lower Support
13 Coil Spring
• Surface of spring coil may not be damaged
• Note color code
• For the correct allocation, refer to the Parts Catalog
14 Cap
Wheel Bearing Housing, Wheel Hub and Wheel Bearing Overview
- Arrow A - points in direction of travel.
1 Bracket
2 Bolt
• 8 Nm
3 Nut
• Self-locking
• Always replace if removed
4 Upper Front Control Arm
• Removing and installing, refer to => [ Upper Front Control Arm ] Upper Front Control Arm
5 Bolt
• 150 Nm + 90° turn
• Always replace if removed
6 Drive Axle
• Removing and installing, refer to => [ Drive Axle, Bolted Inner Joint ] Drive Axle, Bolted Inner Joint.
• Before assembling, coat splines with assembly paste.
• On vehicles with bonded drive axle, clean the spline, remove grease and apply locking compound to the spline.
7 Bolt
• 90 Nm + 90° turn
• Always replace if removed
8 Suspension Strut
• Suspension strut (air suspension), removing and installing, refer to => [ Air Suspension Strut ] Air Suspension Strut
• Suspension strut (coil spring), removing and installing, refer to => [ Coil Spring Suspension Strut ] Coil Spring Suspension Strut
9 Bonded Rubber Mount
• Replace, refer to => [ Bonded Rubber Bushing ] Service and Repair
10 Tie Rod
• Removing and installing, refer to => [ Tie Rod ] Rear Suspension
11 Upper Rear Control Arm
• Removing and installing, refer to => [ Upper Rear Control Arm ] Upper Rear Control Arm
12 Right Rear ABS Wheel Speed Sensor (G44) and Left Rear ABS Wheel Speed Sensor (G46)
13 Bolt
• 8 Nm
14 Lower Control Arm
• Removing and installing, refer to => [ Lower Control Arm ] Lower Control Arm
15 Wheel Bearing
• Avoid contaminating with dirt and damaging the seal when setting down/storing.
• Note installed position => [ Make sure that rubberized ABS sensor ring faces toward rear final drive. ] Rear Suspension
• Removing and installing, refer to => [ Wheel Hub and Wheel Bearing ] Rear Suspension
16 Locking Ring
• Check for proper seating
• Opening must face downward
17 Wheel Hub
• Removing and installing, refer to => [ Wheel Hub and Wheel Bearing ] Rear Suspension
18 Self-Locking Nut
• 500 Nm
• Always replace if removed
• Before assembling, coat contact surface with assembly paste
19 Bolt
• 20 Nm
20 Bolt
• 8 Nm
21 Cover Plate
22 Wheel Bearing Housing
• Removing and installing, refer to => [ Wheel Bearing Housing ] Service and Repair
Avoid contaminating with dirt and damaging the seal when setting down/storing.
• The wheel bearing - 1 - must always face up.
• Always set the wheel bearing unit down on the wheel hub - 2 -.
Drive Axle Overview, with Bolted Inner Joint
1 Nut
• 500 Nm
• Always replace if removed
• Before assembling, coat contact surface with assembly paste
2 Outer CV Joint
• Replace only as complete unit
• Removing and installing, refer to => [ Drive Axle, with Inserted Inner Joint ] Drive Axle, With Inserted Inner Joint
• Before assembling, coat splines with assembly paste.
3 Clamp
• Always replace if removed
• Tensioning, refer to => [ Small and Large Clamps, Tightening on Inner or Outer Joint ] Service and Repair
4 Protective Boot
• Check for tears and scuffing
5 Clamp
• Always replace if removed
• Tensioning, refer to => [ Small and Large Clamps, Tightening on Inner or Outer Joint ] Service and Repair
6 Locking Ring
• Always replace if removed
• Insert in shaft groove
7 Drive Axle
8 Protective Boot
• Check for tears and scuffing
9 Inner CV Joint
• Replace only as complete unit
• Removing and installing, refer to => [ Drive Axle, with Inserted Inner Joint ] Drive Axle, With Inserted Inner Joint
10 Locking Ring
• Always replace if removed
• Insert in shaft groove