Uneven idling, gasoline smell, low km/l ?

[VW BUSH]

it will give you idling problems, you need to go down to VW for a new one.
Suggest you check all your breathers and vac hoses and go with a shopping list.
The Crank case breather pipe is not cheap, I paid £30 about 3 years ago
Vac hose is cheap as chips,the union for the crank and cover breathers is not cheap

[madsb]

it will give you idling problems, you need to go down to VW for a new one.
Suggest you check all your breathers and vac hoses and go with a shopping list.
The Crank case breather pipe is not cheap, I paid £30 about 3 years ago
Vac hose is cheap as chips,the union for the crank and cover breathers is not cheap

In a way I'm glad to hear that, cause then it'll hopefully disappear with the crankcase breather hose replaced £30 ouch... been finding hoses in the £20 department so far and even found one for $13.55 . too bad it's in the US tho .

Once I've got it replaced I think I'll slowly replace most of the other accesible hoses. Thanks guys. I'll report back when it's replaced

[Jasikasisback]

the "hose" there is actually supposed to be a plastic one.

[DCmk3]

It should be plastic, but for that price I doubt putting a section of rubber hose will make much difference. 
I had to do that with mine last night as the plastic pipe had snapped on the bend and with that leaking air, you get a high idle.

[Jasikasisback]

go to the scrapyard you will find what you need if you are lucky...

[madsb]

Fixed it with a metal pipe of appropriate size from some cleaning equipment i had lying around 

I can see that its been reparer before,so I'm gonna buy a new one soon..

It fixed the gas smells completely, and probably helped the idling a bit ..
Do you guys think that cleaning the throttle body will help idling too? And do i need to reset something on the ecu with it cleaned? Think i read that somewhere..
Thanks.

[DCmk3]

Well pretty much yeah, if you disconnect the throttle body you will need to/should get throttle body calibration done..
And if you haven't cleaned the throttle body I would say start off by removing the plastic pipe from the airfilter box to the throttle body, check how clean the throttle body looks, open it and look inside, if it's rather dirty/oily I would say remove it and clean it out.
The slightest dirt can affect running.

[madsb]

Well pretty much yeah, if you disconnect the throttle body you will need to/should get throttle body calibration done..
And if you haven't cleaned the throttle body I would say start off by removing the plastic pipe from the airfilter box to the throttle body, check how clean the throttle body looks, open it and look inside, if it's rather dirty/oily I would say remove it and clean it out.
The slightest dirt can affect running.

 
Is the calibration possible with obdii and vagcom software ?

[thai-wronghorse]

Ive had the throttle body off on every Golf ive owned (which is a lot )  and have never calibrated them afterwards. 

[DCmk3]

Yep you can calibrate with Vag-Com, and it's not always necessary to calibrate it, but it's advisable, especially after cleaning the throttle body itself.

http://www.ross-tech.com/vag-com/cars/throttlebody.html