So my AEB 1.8t has a big oil leak. Its under the IM. I tried and tried to clean the oil up the best I could. Now theres oil every where on that side. I would say 1/8 onthe floor when i park. The funny thing is when I look I can see a lil oil going down the alt braket. Theres nothing around that braket that I can see that would leak oil. The VC looks ok. The head looks ok (no cracks). Cant be the head gasket as the oil leak is the only problem. I would think a leak this big I would see right away. So my question is whats under the IM that would leak oil? So far I have checked the oil line for the turbo, The oil filter and houseing, the VC, what else is there? Its not in the front or back of the motor at all. There are some spots of oil on the hood. Its looks like oil shot up between the 2 middle runners of the IM. Seems like a hose that has a pin hole in it. Some ideas or a list of things to check would be helpfull.

 

Go to www.vagcat.com and sign up for your car (free). Check the exploded diagrams of the engine. It'll show you where all the seals are and may give some insight on where the leak is. You're gonna have to pull the IM to fix it from the sound of it, so that'll also show you all the parts you'll need to order for reassembling the engine (VagCat lists OEM part numbers too).

 

so the leak was coming from the dipstick. so i fixed it. now it burns oil, out the tailpipe and turbo. if i take out the dipstick it stops burning and leaks oil. whats up with this?

 

Where is the PVC valve? Thats what vents the crank case. Some how I get exsesive perssure in the crank case and its pushing oil out the dipstick. If I seal up the dipstick its getting past the turbo seals or the valve steam seals as it will burn oil from the turbo. Is there any thing else that wouldnt let it vent right?

 

The crappy plactic corrugated hose comming from the valve cover...

 

I dont see any hose off the CV. Can I get a pic of this. This should be a simple thing to find but im blind or some thing.

 

Follow the Blue... Should be something like this:

 

Here ya go... lotta info:

http://forums.vwvortex.com/zerothread?id=2666114

 

the crankcase rebreather tube. if you take the dipstick out, air pressure can escape there instead. when you seal up the dipstick tube, air is forced out the rebreather tube.

this guy
http://www.ecstuning.com/Audi-B5_A4-...o-1.8T/ES5940/

also just to make sure- you replaced the dipstick boot, right? the plastic sleeve the dipstick sits in?

 

Thats what I was looking for. Thanks