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Author Topic: Mk5 gti 2006/ smoke coming from small nipple on the valve cover  (Read 935 times)

Offline Hansandersmk5

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Mk5 gti 2006/ smoke coming from small nipple on the valve cover
« on: September 05, 2024, 02:25:13 pm »
Hi ,

I have a question and i cant find it else where. But im having smoke coming out of the nipple marked in the picture, when the car is warm and when i put my finger on top of it i feel air coming out of it.

Any ideas ?

Thanks !


Offline TyGTI

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Re: Mk5 gti 2006/ smoke coming from small nipple on the valve cover
« Reply #1 on: September 06, 2024, 03:29:37 pm »
How does the engine run at idle? Is it smooth?

Those two bolts are for securing the coil pack harness - if they're leaking id recommend checking they're tight and if so they may require a tiny bit of sealant

Offline pudding

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Re: Mk5 gti 2006/ smoke coming from small nipple on the valve cover
« Reply #2 on: September 07, 2024, 11:49:21 am »
I reckon someone has drilled through the hole, or a run a screw through it thinking bolts were missing from the coil pack harness, but VW never secured it down from the factory.  It just rested over those nubs on the rocker cover.



2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline Hansandersmk5

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Re: Mk5 gti 2006/ smoke coming from small nipple on the valve cover
« Reply #3 on: September 07, 2024, 07:58:41 pm »
How does the engine run at idle? Is it smooth?

Those two bolts are for securing the coil pack harness - if they're leaking id recommend checking they're tight and if so they may require a tiny bit of sealant

It does run fine at idle nothing weird, and i also dont use the top cover it came without it.
I i started to notice it when i was standing stil or opened the hood when the car was running

Offline Hansandersmk5

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Re: Mk5 gti 2006/ smoke coming from small nipple on the valve cover
« Reply #4 on: September 07, 2024, 08:00:40 pm »
I reckon someone has drilled through the hole, or a run a screw through it thinking bolts were missing from the coil pack harness, but VW never secured it down from the factory.  It just rested over those nubs on the rocker cover.

Ah okey i understand it . But does it affect power , u think