Subframe, Stabilizer Bar and Control Arm Assembly Overview
Subframe, Stabilizer Bar and Control Arm Assembly Overview
CAUTION!
• Welding and straightening work on supporting or wheel carrying components of the suspension is not permitted.
• Always replace self locking nuts.
• Always replace corroded bolts/nuts.
1 Nut, 65 Nm
• When tightening, counter hold on hex head of joint bolt.
• Self locking.
• Always replace after removal.
2 Coupling rod
• Linking stabilizer bar to strut.
3 Bracket
• Locating, refer to--> [ Subframe Locating ] .
• If a bracket is replaced, the vehicle must be aligned. Refer to --> [ Wheel Alignment ] Wheel Alignment.
4 Mounting bracket
• Locating, refer to --> [ Securing the Mounting Bracket ]
• With bonded rubber bushings.
5 Bolt, 50 Nm + 90° additional turn
• Always replace after removal.
6 Bolt, 70 Nm + 90° additional turn
• M12 x 1.5 x 90.
• Always replace after removal.
7 Bolt, 70 Nm + 90° additional turn
• M12 x 1.5 x 90.
• Always replace after removal.
8 Front level control system sensor (G78)
• Can be tested in "Guided Fault Finding" using the (VAS 5051).
9 Bolt, 9 Nm
10 Control arm
• Description: Cast steel.
• Replace with ball joint if damaged.
• Removing and installing, refer to --> [ Control Arm with Mounting Bracket ] Control Arm with Mounting Bracket.
• Replacing bushing, refer to --> [ Control Arm Bushing ]
11 Control arm
• Description: Steel plate.
• Replace with ball joint if damaged.
• Removing and installing, refer to --> [ Control Arm with Mounting Bracket ] Control Arm with Mounting Bracket.
• Replacing bushing, refer to --> [ Control Arm Bushing ] .
12 Nut, 60 Nm
• M12 x 1.5.
• Self locking.
• Always replace after removal.
13 Ball joint
• Checking, refer to --> [ Ball Joint, Checking ] .
• Removing and installing, refer to --> [ Ball Joint ] Removal and Replacement.
• Replace when control arm is damaged.
14 Nut, 60 Nm
• Self-locking.
• Always replace after removal.
15 Nut, 9 Nm
16 Bolt, 70 Nm + 90° additional turn
• M12 x 1.5 x 100.
• Always replace after removal.
17 Bolt, 20 Nm + 90° additional turn
• Always replace after removal.
18 Bolt, 70 Nm + 90° additional turn
• M12 x 1.5 x 75.
• Always replace after removal.
19 Bolt, 100 Nm + 90° additional turn
• M14 x 1.5 x 70.
• Only tighten if the pendulum support is bolted to the transmission.
• Always replace after removal.
20 Underbody protection bracket
21 Bolt
Always pay attention to the bolt size and strength class. There are different tightening specifications.
• M10 x 75 strength class 8.8: 40 Nm + 90° additional turn
• M10 x 75 strength class 10.9: 50 Nm + 90° additional turn
CAUTION!
From MY 2008, Heli-coil inserts are installed in the threads for the pendulum support threaded connection in the 02Q manual transmissions.
On these and all other transmissions, use strength class 10.9 bolts.
If, in the 02Q manual transmission, there is not a Heli-coil insert, then use 8.8 strength class bolts and the appropriate tightening specification.
• 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° additional turn
• M10 x 35 strength class 10.9: 50 Nm + 90° additional turn
CAUTION!
From MY 2008, Heli-coil inserts are installed in the threads for the pendulum support threaded connection in the 02Q manual transmissions.
On these and all other transmissions, use strength class 10.9 bolts.
If, in the 02Q manual transmissions, there is not a Heli-coil insert, then use 8.8 strength class bolts and the appropriate tightening specification.
• Always replace after removal
23 Bracket on pendulum support
• No replacement part.
24 Pendulum support
• Bolt first to transmission, then to subframe.
• Various versions.
25 Subframe bushing
• Removing and installing, refer to --> [ Subframe Bushings ] Service and Repair.
26 Heat shield
27 Bolt, 6 Nm
• Self-tapping.
28 Subframe
• Various versions.
• 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.
29 Subframe bushing
• Removing and installing, refer to --> [ Subframe Bushings ] Service and Repair.
30 Bolt, 70 Nm + 180° additional turn
• M12 x 1.5 x 110.
• Always replace after removal.
• Tighten only in curb weight position, refer to --> [ Wheel Bearing Housing, Lifting to Curb Weight Position ] .
31 Nut, 65 Nm
• When tightening, counter hold on hex head of the joint bolt.
• Self locking.
• Always replace after removal.
32 Stabilizer bar
• Various versions.
• Removing and installing, refer to --> [ Stabilizer Bar ] Stabilizer Bar.