volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

EGR Control Solenoid|Part I|Page 3105 > < Catalytic Converter|Service and Repair|Page 3099
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EGR Control Solenoid: Testing and Inspection
Part I

EGR Vacuum Regulator Solenoid Valve, Checking

Recommended special tools and equipment

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VAG1390 hand vacuum pump

Test sequence

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Remove engine cover.

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Unclamp connecting pipe between charge air cooler and exhaust pipe at exhaust pipe.

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Disconnect vacuum hose at EGR vacuum regulator solenoid valve.

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Connect V.A.G 1390 hand vacuum pump to valve.

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Operate hand vacuum pump and observe diaphragm rod.
Diaphragm rod must move in direction of arrow.

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Disconnect hose of hand vacuum pump from EGR valve.
Diaphragm rod must move back in opposite direction of arrow into the original rest position.

EGR Control Solenoid|Part I|Page 3105 > < Catalytic Converter|Service and Repair|Page 3099