A4 Sedan L4-2.0L Turbo (BPG) (2005)
Note:
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To avoid damage to pump, note the following:
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Pressure gauge shut-off valve must not remain closed for more than 10 seconds during this test.
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Start engine without pressing accelerator and leave it running at idling speed.
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Take pump pressure reading at idling speed immediately after starting engine (have second mechanic take reading).
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The pressure will drop during the test, take the highest pressure reading as the test value
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Start engine and if necessary, top off fluid in reservoir.
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Read off gauge pressure with engine at idling speed (measurement must not take longer than 10 seconds).
Pump pressure specification
Replace power steering pump if specification is not attained.
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Stop engine.
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Remove pressure gauge.
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Connect pressure line to power steering pump with banjo bolt.
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Check hydraulic fluid level.
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Check steering system for leaks.
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Bleed steering system.