Steering: Diagnosis Audi A6 C5 facelift

Testing pressure

1. Unclip upper part of engine cover and remove.
2. Pinch off intake line and return line using 3094 hose clamps.
3. Unbolt line from expansion hose (arrow), counterhold hex bolt of expansion hose.
4. Bolt VAG1402 pressure gauge to part of expansion hose that leads to power steering pump.
5. Close shut-off on pressure gauge (lever faces toward left)
6. Remove 3094 hose clamps.
7. If necessary, add fluid to power steering fluid reservoir.

Optical test

1. Check whether parts of steering column indicate damage.

Function test

1. Check whether steering column can be turned without catching or difficulty of movement.
2. Check whether length and height of steering column are adjustable.
3. Check whether a gap -dimension A- is present between carriage and mounting bracket. If dimension -A- is larger than 0.5 mm, steering column is damaged and must be replaced.