volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

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EGR Control Solenoid: Testing and Inspection
With Generic Scan Tool

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.

Checking EGR Vacuum Regulator Solenoid Valve

Recommended special tools and equipment

-

VAG1526 multimeter or VAG1715 multimeter

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VAG1594 connector test kit

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Wiring diagram

Test requirements

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The respective fuses of Diesel-Direct fuel injection system must be OK.

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Battery voltage must be at least 11.5 Volts.

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No leaks on intake or exhaust side.

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Vacuum hoses must be properly sealed.

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