Audi Q7 2007 User Manual

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4.2 Steering System, Bleeding after Replac‐
ing
After repairing the steering system, it is necessary to bleed sys‐
tem differently depending on extent of the repair.
Bleed after replacing entire steering system or replacing steering
gear:
– Fill the reservoir completely.
– Lift the vehicle just enough so that all the wheels are off the
ground.
• Engine switched off
– Turn steering wheel from lock to lock 10 times, with engine
switched off.
– Fill the reservoir completely.
– Briefly start engine (max. 2 seconds).
Pump must not draw in any air. Steering wheel must not be turned
under any circumstances.
Approximately 30 sec. wait between individual engine starts.
– Check the power steering fluid level and add if necessary.
– Repeat this process until oil level remains constant.
– Turn steering wheel from lock to lock 10 times, with engine
switched off.
– Check the power steering fluid level and add if necessary.
– Turn steering wheel 10 times from stop to stop.
– Switch off engine and wait 2 - 3 minutes until foam on hydraulic
oil in reservoir has dissipated.
– Check the power steering fluid level and add if necessary.
Any remaining air in the steering system will dissipate by itself
when driving over the next 10 to 20 km.
Bleeding after reconstructing component of the steering system
except the steering gear (pump, hoses, etc.):
– Check the power steering fluid level and add if necessary.
– Briefly start engine (max. 2 seconds).
Pump must not draw in any air and steering wheel must not be
turned under any circumstances.
Approximately 30 sec. wait between individual engine starts.
– Check the power steering fluid level and add if necessary.
– Repeat this process until oil level remains constant.
– Start the engine and allow it to run for 2 to 3 minutes. Do not
turn the steering wheel.
– Switch engine off, check hydraulic oil level and fill if necessary.
Any remaining air in the steering system will dissipate by itself
when driving over the next 10 to 20 km.
Audi Q7 2007 ➤
Suspension, Wheels, Steering - Edition 01.2014
4. Checking Hydraulic Oil Level, Bleeding Steering System and Checking for Leaks 311

Audi Q7 2007 Specifications

General

Brand	Audi
Model	Q7 2007
Category	Automobile
Language	English