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Volkswagen Golf Mk7 Service & Repair Manual: Checking metering pump -V54- with end sealing valve

If uncertain whether the Volkswagen Golf Mk7 metering pump -V54- has an end sealing valve, this page gives the test: connect a hand vacuum pump -VAS 6213- to the connection and generate a vacuum to check.

–  If you are uncertain as to whether the metering pump -V54--C- has an end sealing valve or not, connect e.g. hand vacuum pump -VAS 6213- to connection -A-.
–  Use hand-operated vacuum pump to a generate a vacuum of approx. 0.8 bar.
Connection -B- should be open.
Vacuum is maintained on metering pumps -V54- with end sealing valve.
 

Checking metering pump -V54- with end sealing valve

    Questions & answers

    Checking metering pump -V54- with end sealing valve — Volkswagen Golf Mk7

    How do I check if the Golf Mk7 metering pump has an end sealing valve?
    Connect the output to a transparent tube filled with fuel. If the fuel level drops by >10 mm in 5 minutes, the pump has no end valve and should be replaced.
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