Front Suspension, Servicing

Front suspension, servicing






CAUTION: Do not attempt to weld or straighten the load-bearing or wheel-locating components of the front suspension.

NOTE: For these procedures, use the tools shown in the following illustrations or their equivalents.

1 Bolt/washer assemblies

2 Self-locking nut
- Always replace
- Tighten to: 40 Nm (30 ft. lbs.)

3 Washer
- Always replace

4 Front subframe bushing
- Removing, refer to Fig. 4
- Installing, refer to Fig. 5
- Installation position: ribbed side upward
- Coat with acid-free lubricant before installing

5 Bolt
- Always replace
- Tighten to: 110 Nm (81 ft. lbs.) plus 1/4-turn (90°)

6 Left transmission mount

7 Bolt
- Always replace
- Bolt head points toward rear axle

8 Subframe assembly
- Removing and installing.
- After removing and installing, front wheel alignment does not need to be checked unless the two rear bushings were removed or loosened

9 Self-locking nut
- Always replace
- Tighten to: 65 Nm (48 ft. lbs.)

10 Bushing
- Install flush in subframe assembly and/or control arm bushing
- Bolt to body
- Removing, refer to Fig. 6 and Fig. 7

11 Control arm bushing, inner
- Pressing in and out, refer to Fig. 1, Fig. 2 and Fig. 3
- Starting with vehicle No. NN.107 874 and/or Part No. 000 433, a different bushing is installed in production; Only the modified bushing will be supplied as a replacement part
- When installing modified part, the aligning specification (Fig. 2) no longer applies

12 Shims

13 Self-locking nut
- Always replace
- Tighten to: 120 Nm (89 ft. lbs.) plus 1/4-turn (90°)

WARNING: Do not tighten nut -13- unless the car is standing on its wheels-risk of accident.

14 Control arm bushing, outer
- Replace if worn

15 Control arm
- Different for left. and right sides Removing and installing: remove bushing -10-; disconnect stabilizer bar clamps
- Remove subframe assembly completely.

16 Stabilizer bushing
- Different versions according to stabilizer bar diameter
- Install with talcum

17 Clamp
- Different versions according to stabilizer bar diameter
- Attach to subframe assembly

18 Self-locking nut
- Always replace
- Tighten to: 105 Nm (77 ft. lbs.)

19 Stabilizer bar
- Remove and install with vehicle standing on wheels
- Remove mounting clamps for stabilizer bar from subframe assembly on both sides.
- Remove stabilizer bar-to-control arm mounting nuts on both sides.
- Remove or install front axle with stabilizer bar disconnected from control arms.
- Note different diameters:
- 26 mm
- 27 mm
- 28 mm
- Remove subframe assembly completely.

20 Washer
- Always replace
- Install with ribbed side up

21 Bolt
- Always replace
- Tighten to: 110 Nm (81 ft. lbs.) plus 1/4-turn (90°)





Fig. 1 - Removing And Installing Inner Control Arm Bushing

NOTE:
^ Side of control arm boss with greater chamfer points toward control arm bushing.
^ Align bushing according to Fig. 2 and press in.





Fig. 2 - Aligning Control Arm Bushing To Control Arm

NOTE:
^ Identification knob on control arm bushing -B- can deviate by ± 5° from center line -C-.
^ When the modified bushing is installed the installation specification described is no longer applicable.





Fig. 3 - Installation Position Of Control Arm Bushing In Control Arm
- Dimension -a-: 4.5 mm ± 0.8 mm (0.177 inch ± 0.031 inch)





Fig. 4 - Removing Front Subframe Bushing
- Required additional tools:
a 10 mm threaded rod, approx. 200 mm (7-7/8 inch) long
b Two 10 mm nuts
c Large washer with 12 mm (1/2 inch) diameter hole
- Tighten upper nut -b- (arrow) until bushing pulls out of subframe assembly.

NOTE: Special tool 32-119 must not apply force to bearing shoulder.





Fig. 5 - Installing Front Subframe Bushing
- Pull bushing in to stop.
- Use additional tools described in Fig. 4.
- Coat bushing with acid-free lubricant and tighten upper nut -b- (arrow) until shoulder of bearing contacts subframe assembly.





Fig. 6 - Installing Extractor In Rear Subframe Bushing
- Remove mounting bolt for subframe assembly.
- Install puller (e.g. Kukko No. 21/2).
- Tighten nut (arrow) until two jaws of puller spread in bushing.
- To counterhold, place suitable screwdriver through hole in puller.




Fig. 7 - Removing Rear Subframe Bushing

WARNING: When removing the rear subframe bushing, the vehicle must be standing on its wheels.

- Thread puller (such as kukko No. 22/1 ) onto threads of extractor until two jaws are supported on subframe assembly.
- Tighten nuts on puller spindle until bushing is pulled off.