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Thread: Glow Plug Control Unit - Faulty Again

  1. #1
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    Glow Plug Control Unit - Faulty Again

    Looks like the glow plug control unit on my E60 is faulty and needs replacing.

    This will be the third time in 3 years.

    Surely, there is something else causing this to happen?


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  2. #2
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    What engine?


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  3. #3
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    Quote Originally Posted by HealyC View Post
    What engine?


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    2007 530d


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  4. #4
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    Quote Originally Posted by techman View Post
    2007 530d


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    Is it leaking any oil from the intake manifold?


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  5. #5
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    No. No leaks at all.


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  6. #6
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    Quote Originally Posted by techman View Post
    No. No leaks at all.


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    The biggest cause of the control unit failure on that engine is oil contamination. Double check that none is leaking onto them, it comes from the swirl flaps.

    I have seen them fail without any oil contamination but once replaced with a beru or genuine unit they rarely give trouble again. What brand are you fitting? And you've checked that it's not your glow plugs are faulty?

    Also make sure if you've fitted glow plugs recently that there 5v ones, not on BMW's but another brand of car I've seen the wrong voltage glow plugs fitted and this damaged the relay.


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  7. #7
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    Quote Originally Posted by HealyC View Post
    The biggest cause of the control unit failure on that engine is oil contamination. Double check that none is leaking onto them, it comes from the swirl flaps.

    I have seen them fail without any oil contamination but once replaced with a beru or genuine unit they rarely give trouble again. What brand are you fitting? And you've checked that it's not your glow plugs are faulty?

    Also make sure if you've fitted glow plugs recently that there 5v ones, not on BMW's but another brand of car I've seen the wrong voltage glow plugs fitted and this damaged the relay.


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    Thanks HealyC. Will check those.


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  8. #8
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    Going to get a local mechanic to have a look.

    Is Beru the best brand to buy?


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  9. #9
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    AFAIK Beru is the OEM supplier, was for the E92 anyway.
    E92 Interlagos Blue M3 - Current
    F10 Sophisto Grey 530d M-Sport - Sold
    F21 M135i Estoril Blue - Sold
    E92 Sapphire Black 335d M-Sport
    - Sold
    E36 328i SE Low Miler - Sold
    E46 Estoril Blue M3 - Sold
    E46 Titan Silver 330ci Clubsport - Sold
    E36 Cosmos Black 318is - Dead

  10. #10
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    What other jobs could be done or things checked when replacing the unit and glow plugs?


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