Volkswagen Workshop Service and Repair Manuals > Golf Mk5 > Power unit | 4-cylinder diesel engine (1.9 l engine) | Exhaust system | Exhaust gas recirculation system | Checking mechanical exhaust gas recirculation valve

Checking mechanical exhaust gas recirculation valve

Special tools and workshop equipment required

t	Hand vacuum pump with accessories -V.A.G 1390-

Test procedure

–	Pull vacuum hose off exhaust gas recirculation valve.

–	Connect hand vacuum pump with accessories -V.A.G 1390- to valve.

–	Operate hand vacuum pump a few times.

–	Pull hand vacuum pump hose off exhaust gas recirculation valve. The diaphragm rod must audibly return to its original position.

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