Power steering system, bleeding

WARNING: This page is about a different car, the 2004 Audi S4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Depending on how extensive conversion procedures were on steering system different bleeding procedures must be done on steering system.

Following replacement of the entire steering system or replacement of steering gear:

Check hydraulic fluid level and top off if necessary.
Raise vehicle so that front wheels are free.
Start engine briefly (max. 2 seconds)

The pump must not draw in any air, steering wheel must not be moved under any circumstances in the process.

Waiting interval between individual engine starts approx. 30 sec.

Check hydraulic fluid level and top off if necessary.
Repeat this procedure until fluid level remains constant.
Turn steering wheel from lock to lock 10 times, with engine switched off.
Check hydraulic fluid level and top off if necessary.
Start engine.
Turn steering wheel from lock to lock 10 times.
Check hydraulic fluid level and top off if necessary.

Any air remaining in steering system escapes automatically while driving after approx. 10 to 20 km (6 - 12 miles).

For conversion of one steering system component except steering gear (pump, hoses, etc.):

Check hydraulic fluid level and top off if necessary.
Start engine briefly (max. 2 seconds)

The pump must not draw in any air, steering wheel must not be moved under any circumstances in the process.

Waiting interval between individual engine starts approx. 30 sec.

Check hydraulic fluid level and top off if necessary.
Repeat this procedure until fluid level remains constant.
Start engine and allow to run for 2 - 3 minutes; do not turn steering wheel.

Any air remaining in steering system escapes automatically while driving after approx. 10 to 20 km (6-12 miles).