audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Exhaust Pressure Regulator Vacuum Solenoid > < Right Front Exhaust Pipe With Primary and Main Catalytic Converter (Vehicles With A/T)|Page 2904
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Exhaust Pressure Regulator Vacuum Reservoir: Testing and Inspection

Exhaust Flap Vacuum Reservoir, Checking

Special tools, testers and auxiliary items required

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Hand vacuum pump VAS 6213

Test sequence

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

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Connect Hand Vacuum Pump V.A.G 1390 to vacuum diaphragm.

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Generate vacuum using hand vacuum pump.
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Linkage must move toward front.

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Vent the hand vacuum pump.
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Linkage must move toward rear.

If linkage does not move:

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

Exhaust Pressure Regulator Vacuum Solenoid > < Right Front Exhaust Pipe With Primary and Main Catalytic Converter (Vehicles With A/T)|Page 2904