1.6 FSI Oil Leak

M

mijos

Member
I am at a loss to explain the origin of a small oil drip found under the car. The car has been recently serviced at a non-franchised audi specialist. Also the cylinder 4 exhaust bypass tube bellows was blowing and needed to be replaced (after first suspecting the exhaust gasket, which was also replaced).
Whereas prior to these repairs the engine was dry, a small amount of oil is now dripping off the lowest part of the front right of the engine. It was suspected by the garage that the oil filter body was faulty - that was replaced with another new one- to no avail. Can anyone suggest a likely source for the oil leak? Rocker box lid looks OK. Sump plug is dry. Only thing I can't see is the base of the dipstick tube/ remote oil fill tube, which may have been disturbed during the exhaust manifold gasket replacement.
I'm wondering, that since the dip-stick is so useless, if the sump may have been overfilled slightly and oil is finding another way out?
 
OK, since that elicited a zero response, does anyone have any idea whether there are any breather hoses routed under the exhaust manifold at the front of the engine?
 
Hi mijos
Did you check out the oil fill pipe ? This became loose on my TDi when I lowered the front of the engine during a cambelt change. I'm aware the FSI unit has a completely different layout but this filler tube probably enters the front of the engine in a similar way. In my case it was completely detatched and quite a lot of oil spilled out when the engine was running.
Unfortunately the club does not seem to have many (any) FSI members who do their own servicing / repairs so advice is a bit thin on the ground - for the engine at least.

Cheers Spike
 
Thanks very much for the reply Spike.
As far as I can see there are no leaks from the oil filler/dipstick pipes, at least when viewed from above with manifold heatshield removed. I am beginning to suspect a leak from the cylinder head area. Head casting is dry above the manifold flange but oily below, where head joins block. No coolant leak though, or any emulsion in oil. A small oil leak can be pushed up/down/around engine by airflow, so difficult to tell where it is coming from (although I can see where it is collecting!)
Will see what the garage says on Tuesday, leak is getting a bit more noticeable.

Mike
 
Just to bring back to the top. Garage cannot find evidence of where leak is coming from after two return visits, but leak it still does - after a run.
 
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