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– Start engine and when at idle speed, close shut-off valve
-item 1- and read pressure (do not measure longer than 10
seconds).
Delivery pressure specified value: 110 to 128 bar
If specified value is not obtained, replace power steering pump,
refer to
⇒ “6.4 Power Steering Pump, Removing and Installing”,
page 342 .
– Switch off engine.
– Remove Power Steering Test Unit - VAG1402- .
– Install banjo bolt with new gaskets, refer to -Item 7-
⇒ Item 7 (page 343) . Note location of pressure line when
doing so, refer to
⇒ “6.4 Power Steering Pump, Removing and Installing”, page
342 .
– Bleed steering system, refer to
⇒ “4.2 Steering System, Bleeding after Replacing”,
page 311 .
– Check power steering fluid level, refer to
⇒ “4.1 Power Steering, Checking Hydraulic Oil Level”,
page 310 .
– Check the steering system for leaks, refer to
⇒ “4.3 Steering System, Checking for Leaks”, page 312 .
– Clean engine, engine compartment and subframe in power
steering pump area.
– Install noise insulation, refer to ⇒ Rep. Gr. 50 .
– On vehicles with air suspension, position vehicle on wheels,
refer to
⇒ “4 Positioning Vehicle on Hoist and Wheels”, page 10 .
6.4 Power Steering Pump, Removing and Installing
Note
♦
Always replace seals.
♦
Do not reuse fluid you have drained.
♦
Only use Hydraulic Oil .
Audi Q7 2007 ➤
Suspension, Wheels, Steering - Edition 01.2014
342 Rep. Gr.48 - Steering
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