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– Only remove front noise insulation -1-.
– Remove banjo bolt -6-.
– Install Power Steering Test Unit - VAG1402- as shown in il‐
lustration.
1 - Power Steering Test Unit - VAG1402-
2 - Hose from Power Steering Test Unit - Adapter Hose -
VAG1402/6-
3 - Adapter - V.A.G 1402/4-
4 - Seal
5 - Power Steering Pump
6 - Banjo Bolt
7 - Pressure Line
8 - Adapter - V.A.G 1402/2-
– Remove the Hose Clamps - Up To 25mm - 3094- .
– Make sure that lever on pressure gauge stands in position
-2-.
– Start engine and fill hydraulic fluid in reservoir if necessary.
– Turn steering wheel from stop to stop approximately 10 times.
Note
♦
To avoid damage to pump, note the following:
♦
Pressure gauge shut-off valve must not remained closed lon‐
ger than 10 seconds during this test.
♦
Start engine without giving gas and run at idle.
♦
Read the pump pressure immediately after starting at idle
speed (have it read by second technician, if necessary).
♦
Because pressure falls over the course of the test, the highest
pressure shown is the decisive measurement.
– Now check delivery pressure.
Audi Q7 2007 ➤
Suspension, Wheels, Steering - Edition 01.2014
6. Power Steering Pump, Hydraulic Pipes and Reservoir 341
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