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Bkd tandem pump failure?

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Ade6, May 26, 2013.

  1. Ade6
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    Ade6 Member

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    [May 26, 2013]
    My car takes longer to start in the mornin (when its been stood) and when it starts it misses a little and a big plume of diesel smoke. I did a diesel purge erlier and went thru the rev range went back to see how the purge was and it was black! Can the pump seal be replaced or is it a new pump? Thanks
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  3. AudiMafia
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    AudiMafia Member

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    [May 26, 2013]
    Hi, check with VCDS see if it through any faults or it could be the glow plugs??
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  4. Ade6
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    Ade6 Member

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    [May 26, 2013]
    No codes on vcds. Glow plugs was replaced last month.
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  5. Johnny Bravo
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    Johnny Bravo 6+1 Gears

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    [May 27, 2013]
    A simple way to check if the pump is starting to fail is to leave the car one nitght parked with the front higher than the rear and see how it starts in the morning and next night parked with the front lower and again see how it starts.
    If it starts better in the second case, than its a sign that the pump can't keep the pressure overnight and you may consider a check. May be gaskets or the pump itself.

    You won't see any fault with VCDS regarding the pump.
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