audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Exhaust Pressure Regulator Vacuum Solenoid > < Exhaust Pipe|Service and Repair|Page 2814
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Exhaust Pressure Regulator Vacuum Reservoir: Testing and Inspection

Exhaust Flap Vacuum Diaphragm, Checking

Special tools, testers and auxiliary items required

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Hand vacuum pump VAS 6213

Test Sequence

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Vacuum lines and hose connections free of leaks.

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Vacuum lines not plugged.

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Disconnect hose on vacuum diaphragm for exhaust flap at rear muffler.

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Connect hand vacuum pump to vacuum diaphragm.

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Generate vacuum using hand vacuum pump.
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Linkage must move upward.

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Vent hand vacuum pump.
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Linkage must move downward.

If linkage does not move:

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Check linkage for ease of movement and check vacuum diaphragm for leaks.

Exhaust Pressure Regulator Vacuum Solenoid > < Exhaust Pipe|Service and Repair|Page 2814