Oily/Damp air intake??

bryce · 08-02-2009, 03:08 PM

Just taken my air filter out to give it a little clean (its not too bad actually - steeping in the sink just now) and Ive noticed that cylinder 5 and 6 are very damp/oily. 1 2 3 and 4 are perfectly clean. 5 is probably the worst.

Is this a sign of anything? Find it strange that the rest are immaculate.

Pics ...

dave1 · 08-02-2009, 03:29 PM

its just cause there at the back

SpineOnABap · 08-02-2009, 03:38 PM

Pretty normal I believe. Not checked mine but I've seen other people discuss it (years ago mind!)

**glendog74** · 08-02-2009, 06:37 PM

I just looked at mine and it's the same - pretty manky!

**Mark CSL** · 08-02-2009, 06:43 PM

They are all like that there is a small hole just behind the support leg in this pix

It is a breather for the sump so when you clean it dont use any thing but a cloth with carb cleaner on the cloth or it will contaminate the oil

The BMW dealer done mine i went and showed them after i seen mine
It was cleaned free of charge

1cosmicboy · 08-02-2009, 07:35 PM

Quote:

Originally Posted by bryce86

Just taken my air filter out to give it a little clean (its not too bad actually - steeping in the sink just now) and Ive noticed that cylinder 5 and 6 are very damp/oily. 1 2 3 and 4 are perfectly clean. 5 is probably the worst.

Is this a sign of anything? Find it strange that the rest are immaculate.

Pics ...

the breather from the cam cover to the airbox causes this ,not a problem,all type of cars breathe this way

bryce · 10-02-2009, 12:05 PM

Confirmed with dealer yesterday that all is ok. Oil / dampness is drawn up from the breather into the trumpets.

So how do I clean it properly? Particularly the dust in the bottom of airbox.

SMD · 10-02-2009, 12:12 PM

Use some brake cleaner and a rag!

**glendog74** · 10-02-2009, 03:44 PM

I used a trich based fluid, similar to brake cleaner in result but almost odourless and evaporates leaving no residue.

Intake trumpets look sweet now and no sandpit left!

08-02-2009, 03:08 PM	#1
bryce S5, Sport On, DSC M-track Join Date: Nov 2008 Location: Scotland (sw) Posts: 1,369 Casino cash: $2512	Oily/Damp air intake?? Just taken my air filter out to give it a little clean (its not too bad actually - steeping in the sink just now) and Ive noticed that cylinder 5 and 6 are very damp/oily. 1 2 3 and 4 are perfectly clean. 5 is probably the worst. Is this a sign of anything? Find it strange that the rest are immaculate. Pics ...

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bryce S5, Sport On, DSC M-track Join Date: Nov 2008 Location: Scotland (sw) Posts: 1,369 Casino cash: $2512	Confirmed with dealer yesterday that all is ok. Oil / dampness is drawn up from the breather into the trumpets. So how do I clean it properly? Particularly the dust in the bottom of airbox.

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