Bleeding the steering after reinstallation (Audi Q5-8R)

After performing work on reinstalling the steering system, it is necessary to bleed air from the steering system in different ways depending on the scope of work on reinstallation. Bleeding after a complete replacement of the steering system or replacement of the hydraulic steering gear: Completely fill the expansion tank. Raise the car so that all wheels hang freely. Turn off the engine. With the engine off, turn the steering wheel 10 times from lock to lock. Completely fill the expansion tank. Start the engine for a short time(no more than 2 seconds). The pump must not suck in air. The steering wheel must not be turned under any circumstances. The pauses between individual engine starts are about 30 seconds. Check the hydraulic system oil level and top up if necessary. Repeat this procedure until the oil level is fixed at the 1 mark. With the engine off, turn the steering wheel 10 times from lock to lock. Check the hydraulic system oil level and top up if necessary. Start the engine. Turn the steering wheel 10 times from lock to lock. Check the hydraulic system oil level and top up if necessary. It is possible that the remaining air in the steering system will come out on its own after 10...20 km of running.

Bleeding after reinstalling one steering unit other than the hydraulic steering gear: Check the hydraulic oil level and top up if necessary. Run the engine briefly (no more than 2 seconds). The pump should not suck in air, and the steering wheel should not be turned under any circumstances. The pauses between individual engine starts should be about 30 seconds. Check the hydraulic system oil level and top up if necessary. Repeat this procedure until the oil level is fixed at the 1 mark. Start the engine and let it run for 2-3 minutes, do not turn the steering wheel. It is possible that the air remaining in the steering system will come out on its own after 10...20 km of running.

(Content source: the specified website «AudiManual»)