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Help please think I need new coil pack but not sure which one

Discussion in 'A4/S4 forum(B5 Chassis)' started by audiv6quattro, Aug 21, 2011.

  1. audiv6quattro
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    audiv6quattro Member

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    [Aug 21, 2011]
    Hi all my car has been running like s**t lately, really lumpy and juddering, the juddering is intermittent though, so I checked the coil pack and it's got good spark from numbers 1,3,6 and 5 but 2 and 4 is only sparking a little, not as much as the others, so my question is
    1. Would this cause the car to run like it is and
    2. The part no I have is 078 905 101c, does it matter if the part I buy has an A at the end instead of a c,
    The cars a 2.6 v6 quattro on a p plate. Thanks for any replies
    #1
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  3. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Aug 21, 2011]
    I think the 2.6 has 3 coils, running wasted spark, so if one failed it would make sense that two cylinders would have a weak spark.

    Theres a "C" part on ebay.
    #2
  4. audiv6quattro
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    audiv6quattro Member

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    [Aug 21, 2011]
    Ok thanks aragorn so I take it the "c" part would fit it doesn't matter that mine has an "a" at the end
    #3
  5. audiv6quattro
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    audiv6quattro Member

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    [Aug 21, 2011]
    Sorry just realised what I wrote, that's the exact part I'm looking for mines a "c" not an "a" it been a long day.
    #4
  6. NineNails
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    NineNails Proud sponsor of the snack food industry

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    [Aug 21, 2011]
    Try swapping the coil to see if the fault moves cylinders, then you know you deffo need one
    #5
  7. audiv6quattro
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    audiv6quattro Member

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    [Aug 22, 2011]
    Cheers ninenails but I ordered the coil pack from eBay anyways managed to get one for 20 quid so not to sad I just hope it's the coil pack that's at fault
    #6
  8. audiv6quattro
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    audiv6quattro Member

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    [Aug 23, 2011]
    Ok so coil pack came today while I was at Work so just got home and fitted it, was abit fiddly but got there in the end and it seems to have made a difference, only took it round the block so will let everyone know how it drives tomorrow, thanks for your help everyone
    #7
  9. NineNails
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    NineNails Proud sponsor of the snack food industry

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    [Aug 23, 2011]
    Hope it's all sorted pal
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  10. audiv6quattro
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    audiv6quattro Member

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    [Aug 23, 2011]
    Cheers ninenails so do I, I'll let you know tomorrow
    #9

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