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Hot starting issue

Discussion in 'Volkswagen and other VAG' started by vw754, Apr 18, 2011.

  1. vw754
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    vw754 vorsprung Durch Technik

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    [Apr 18, 2011]
    golf mk5 tdi 105 bhp..........starts ok when cold but once hot it take a good few (around say....5 seconds) to start,ive heard its the starter motor if this is the case,can it be repaired? and how can i tell if it is knackered ,i mean it still works.....what do i do? car drives 100% and starts at the first turn of the key when cold,no faults via vag and coolant temp sensor is ok aswell
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  3. vw754
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    vw754 vorsprung Durch Technik

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    [Apr 28, 2011]
    BUMP!!!!
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  4. colicabcadam
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    colicabcadam Guest

    [May 7, 2011]
    doubt it's the starter motor if it cranks over for 5 secs, will be more down to the fuel / air mixture being incorrect, hot engines need more air and less fuel to start i believe
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  5. Wabby
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    Wabby Member VCDS Map User

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    [Oct 15, 2011]
    ECT faulty would be my guess.

    When the engine is hot, disconnect the wiring plug from the ECT and try starting. If it starts straight up, replace the ECT.
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  6. vw754
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    vw754 vorsprung Durch Technik

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    [Oct 15, 2011]
    thanks all..............but it was the starter !!
    I did disconnect the coolant sensor........and it was checked with vcds and it was giving the right readings........when you disconnect it ,it alters the fuel/air/timing and starts straight away...........replaced starter and its ok.
    Last edited: Oct 15, 2011
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