Oil Leak ANYONE ?

[Jay20VT]

Can anyone tell me where this little leak is coming from ?

 

[Jay20VT]

 

[Jay20VT]

Appears to be behind the injectors.. PCV?

 

[Jay20VT]

Furthermore, I appear to have lost approx half a dipstick worth of oil since service last September..

 

[Jay20VT]

Can any of you fine chaps have a look at this..

 

[g60stu]

I’m assuming if it’s under the manifold then it’s PCV related. I’m not convinced you’d lose that much oil from pcv leaks. Has your car ever had any pcv pipes replaced? If not they’ll almost certainly be knackered.

 

[g60stu]

I’ve posted diagrams and part numbers of the pcv in the past, but the issue is that you can’t buy the OEM parts anymore. People go for catch cans but I’m a sucker for keeping things OEM.

 

[mty12345]

I’ve posted diagrams and part numbers of the pcv in the past, but the issue is that you can’t buy the OEM parts anymore. People go for catch cans but I’m a sucker for keeping things OEM.

I've used these sets from ebay. For the price they are great quality. 2 years since i fitted the set and no leaks so far. I have the AUQ engine though, I think a couple of the BAM pipes are different.

Crankcase Breather Hose Pipe Kit Set Fit For VW Jetta Bora Golf MK4 AUDI A3 1.8T | eBay

VW JETTA MK4 1.8T AUQ / AUM 1999-2005. VW GOLF MK4 1.8T AUQ / AUM 1998-2006. VW BORA 1.8T AUQ / AUM 1999-2005. 1set x 6pcs-Crankcase Breather Hose Pipe set. Audi A3 1.8T AUQ / AUM / ARX / ARY 2001-2003.

www.ebay.co.uk

 

[Jay20VT]

I've used these sets from ebay. For the price they are great quality. 2 years since i fitted the set and no leaks so far. I have the AUQ engine though, I think a couple of the BAM pipes are different.

Crankcase Breather Hose Pipe Kit Set Fit For VW Jetta Bora Golf MK4 AUDI A3 1.8T | eBay

VW JETTA MK4 1.8T AUQ / AUM 1999-2005. VW GOLF MK4 1.8T AUQ / AUM 1998-2006. VW BORA 1.8T AUQ / AUM 1999-2005. 1set x 6pcs-Crankcase Breather Hose Pipe set. Audi A3 1.8T AUQ / AUM / ARX / ARY 2001-2003.

www.ebay.co.uk

Thanks for this but does not mention BAM in the eBay listing? Does that matter

 

[mty12345]

Thanks for this but does not mention BAM in the eBay listing? Does that matter

Yeah it matters mate, at least some of the pipes are definitely different on the BAM. Hopefully you'll be able to find the equivalent BAM set. Maybe try amazon too?

 

[g60stu]

Take a look at this for reference - https://www.seatcupra.net/forums/th...ments-or-make-up-your-own.461250/post-4930621

 

[mty12345]

There is also this parts diagram. It shows the 2 hoses that are different on the AUQ and BAM (hoses 9 and 13) The rest of the hoses are the same

https://seat.7zap.com/en/e/leon+leon+4/le/2003-268/1/103-103085/

 

[Jay20VT]

I’m assuming if it’s under the manifold then it’s PCV related. I’m not convinced you’d lose that much oil from pcv leaks. Has your car ever had any pcv pipes replaced? If not they’ll almost certainly be knackered.

Never replaced

 

[Alexis27]

I got the full set off Creations Motorsport.
Also worth getting a new 90 degree plastic elbow and a new PCV valve whilst you are replacing all the pipes.

 

[g60stu]

I remember pulling on the 90 degree elbow and it shattering in my hand. Had to get the bottom part out with circlip pliers. Good times!!

 

[Alexis27]

At least it didn't go down the hole!