Subframe, Stabilizer Bar and Control Arms Assembly Overview
Subframe, Stabilizer Bar and Control Arms Assembly Overview
CAUTION!
• Welding and straightening work on supporting or wheel carrying components of suspension is not permitted.
• Always replace self-locking nuts.
• Always replace corroded bolts/nuts.
1 Nut
• 65 Nm
• Counterhold at socket head of joint bolt when tightening.
• Self-locking
• Always replace after removal.
2 Stabilizer Bar
• Various versions
• Removing and installing, refer to => [ Stabilizer Bar ] Stabilizer Bar.
3 Coupling Rod
• Linking stabilizer to suspension strut.
4 Nut
• 65 Nm
• Counterhold at socket head of joint bolt when tightening.
• Self-locking
• Always replace after removal.
5 Mounting Bracket
• Locating, refer to => [ Securing Mounting Bracket ] Subframe, Securing.
• With bonded rubber bushing.
6 Bolt
• M10 x 70
• 50 Nm + 90° turn
• Always replace after removal.
7 Bolt
• M12 x 1.5 x 100
• 70 Nm + 180° turn
• Always replace after removal.
8 Bolt
• M6 x 16
• 9 Nm
9 Left Front Level Control System Sensor (G78)
• Removing and installing, refer to => [ Front Left Level Control System Sensor ] .
• Can be checked in Guided Fault Finding using the Vehicle Diagnosis, Testing and Information System (VAS 5051).
10 Control Arm
• Replace with ball joint if damaged.
• Removing and installing, refer to => [ Control Arm with Mounting Bracket ] Control Arm With Mounting Bracket.
• Replace bearing, refer to => [ Control Arm Bonded Rubber Bushing ] Service and Repair.
• it is possible there are different control arm versions (steel, sheet steel, aluminum).
• Do not install control arms made of different versions or made of different materials on the right and left sides.
11 Nut
• M12 x 1.5
• 20 Nm + 90° turn
• Self-locking
• Always replace after removal.
12 Ball Joint
• Checking, refer to => [ Ball Joint, Checking ] Front Suspension.
• Removing and installing, refer to => [ Ball Joint ] Removal and Replacement.
• Replace with control arm if damaged.
13 Nut
• Cast steel control arm: 60 Nm
• Steel and aluminum control arms: 100 Nm
• Self-locking
• Always replace after removal.
14 Nut
• 9 Nm
15 Bolt
• M12 x 1.5 x 100: 70 Nm + 180° turn
• M12 x 1.5 x 110: 70 Nm + 90° turn
• Always replace after removal.
16 Bolt
• M8 x 55
• 20 Nm + 90° turn
• Always replace after removal
17 Bolt
• M12 x 1.5 x 110
• 70 Nm + 180° turn
• Always replace after removal.
• Tighten only in curb weight position. Refer to => [ Wheel Bearing, Lifting to Curb Weight Position ] Procedures.
18 Bolt
• M14 x 1.5 x 70
• 100 Nm + 90° turn
• Only tighten when pendulum support is bolted to transmission.
• Always replace after removal.
19 Lower Bonded Rubber Bushing for Pendulum Support
• Ejecting and pressing in, refer to => [ Subframe Bonded Rubber Bushings ] Service and Repair.
20 Pendulum Support
• Bolt first to transmission, then to subframe.
• Various versions
21 Bolt
• Always pay attention the bolt size and strength class. There are different tightening specifications.
• M10 x 75 strength class 8.8: 40 Nm + 90° turn
• M10 x 75 strength class 10.9: 50 Nm + 90° turn
CAUTION!
From MY 2008, Heli-Coil inserts are installed in the threads for the pendulum support threaded connection in the 02Q manual transmissions. Differences
On these and all other transmissions, use strength class 10.9 bolts.
If, in the 02Q manual transmissions, there is not Heli-Coil insert, then use 8.8 strength class bolts and the appropriate tightening specification.
• M12 x 1.5 x 85: 60 Nm + 90° turn
• Always replace after removal
22 Bolt
• Pay attention to the bolt strength class. There are different tightening specifications.
• M10 x 35 strength class 8.8: 40 Nm + 90° turn
• M10 x 35 strength class 10.9: 50 Nm + 90° turn
CAUTION!
From MY 2008, Heli-Coil inserts are installed in the threads for the pendulum support threaded connection in the 02Q manual transmissions. Differences
On these and all other transmissions, use strength class 10.9 bolts.
If, in the 02Q manual transmissions, there is not Heli-Coil insert, then use 8.8 strength class bolts and the appropriate tightening specification.
• Always replace after removal
23 Shield
24 Bolt
• 6 Nm
25 Bolt
• M12 x 1.5 x 90
• 70 Nm + 180° turn
• Always replace after removal.
26 Subframe
• Locating, refer to => [ Subframe, Securing ] Subframe, Securing.
• Lowering, refer to => [ Subframe, Lowering ] Subframe, Lowering.
• Removing and installing without steering gear, refer to => [ Subframe without Steering Gear ] Subframe Without Steering Gear.
• Removing and installing with steering gear, refer to => [ Subframe with Steering Gear ] Subframe With Steering Gear.
• Various versions.
27 Upper Bonded Rubber Bushing for Pendulum Support
• Ejecting and pressing in, refer to => [ Subframe Bonded Rubber Bushings ] Service and Repair.