Audi Q7 2007 - Steering System, Checking for Leaks

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4.3 Steering System, Checking for Leaks
Note
Following installation operations and with no hydraulic fluid in the
expansion tank, the steering system must be checked for leaks.
– Start engine.
– Turn steering wheel in both directions to full lock and hold
briefly.
This builds up the maximum possible pressure.
Note
To avoid damage to power steering pump, steering wheel must
not be held at stop longer than 10 seconds during this test.
In this position, the following components must be checked for
leaks.
♦ Seal ring for steering pinion at the steering gear valve housing,
♦ all wiring connections,
♦ the rack sealing rings.
This test can only be performed with bellows slid back.
– Open spring-type hose clamp and boot hose clamp.
– Push the boots back.
If fluid is visible in steering gear housing and/or in bellows, steer‐
ing gear must be replaced.
Audi Q7 2007 ➤
Suspension, Wheels, Steering - Edition 01.2014
312 Rep. Gr.48 - Steering