Overview - SUBFRAME
CAUTION:
There is a risk of damaging the threads on the subframe threaded connection to the body.
- The subframe bolts on the body must not be loosened or tightened with an impact wrench.
- Always install all bolts by hand for the first few turns.
There is a risk of damaging the suspension components.
- If the assembly mount, steering gear or subframe crossbrace are not installed correctly, do not rest the vehicle on its wheels.
- Supporting the vehicle at the subframe or the subframe crossbrace (for example, using a floor jack or similar device) is not permitted.
- Bolt
- 90 Nm +90°
- Replace after removing
- Fitting Bolt
- 90 Nm +90°
- Replace after removing
- Bolt
- 30 Nm
- Subframe Crossbrace
- There are different versions. Refer to the appropriate Electronic Parts Information for the allocation.
- Removing and installing. Refer to SUBFRAME CROSSBRACE, REMOVING AND INSTALLING .
- Bolt
- 115 Nm + 180°
- Replace after removing
- Loosen and tighten together with -item 11- OVERVIEW - SUBFRAME and -item 12- OVERVIEW - SUBFRAME diagonally in stages
- Subframe
- Securing. Refer to SUBFRAME, SECURING .
- Lowering. Refer to SUBFRAME, LOWERING .
- Removing and installing. Refer to SUBFRAME WITH STEERING GEAR, REMOVING AND INSTALLING .
- Bolts
- 9 Nm
- Shield
- Removing and installing. Refer to SUBFRAME SHIELD, REMOVING AND INSTALLING .
- Nut
- 9 Nm
- Steering Gear
- Overview. Refer to OVERVIEW - STEERING GEAR .
- Bolt
- 115 Nm + 180°
- Replace after removing
- Loosen and tighten together with -item 5- OVERVIEW - SUBFRAME and -item 12- OVERVIEW - SUBFRAME diagonally in stages
- Bolt
- 50 Nm + 90°
- Replace after removing
- Loosen and tighten together with -item 5- OVERVIEW - SUBFRAME and -item 11- OVERVIEW - SUBFRAME diagonally in stages
- Clip
Subframe Crossbrace, All Except A5 Cabriolet, Tightening Sequence
-- Tighten the bolts in the steps in the sequence shown:
| Step | Bolts | Tightening Sequence |
|---|---|---|
| 1. | -arrows- | Install all the way by hand |
| 2. | -arrows- | Tighten diagonally in stages |
| 3. | Remove the Locating Pin:T40334 | |
| 4. | -1 and 2- | Tighten |
Subframe Crossbrace, A5 Cabriolet, Tightening Sequence
-- Tighten the bolts in the steps in the sequence shown:
| Step | Bolts | Tightening Sequence |
|---|---|---|
| 1. | -arrows- | Install all the way by hand |
| 2. | -arrows- | Tighten diagonally in stages |
| 3. | Remove the Locating Pin:T40334 | |
| 4. | -1 and 2- | Tighten |