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[aaronjb]

The last few days I've noticed a little patch (maybe 6" diameter) of oily residue under the car after it's been parked for 8-12 hours or so; so something is clearly leaking, although not a massive amount since there's not enough there to form a puddle, just a damp patch.

After a quick shuftie in the bay it becomes apparent that I really need to get under the car to find the source, but I thought I'd ask..

The leak seems to be on the nearside, roughly underneath the PAS reservoir - just inside and behind the passenger front wheel.

I can't tell from the patch whether it's engine oil, PAS fluid or gearbox oil so can anyone tell me if anything besides the PAS lines run in that area?

What I'm wondering about is - which side is the engine oil cooler located on, and where do the auto gearbox cooler lines run on the '96 2.5TD?

If there's a possibility it's gearbox fluid then I'll lay it up until the weekend, if it's just PAS fluid then I'll keep an eye on it and drive it

[hoofing it]

You might find at the base of the oil filter is where the leak is it could be the O rings on one the pipes that lead to the oil cooler which is behind the N/S of the bumper or you could have a weeping pipe

[aaronjb]

Aha thanks - I thought, for some reason, that the oil cooler was on the offside.. hopefully it's just that, then; even a leaking pipe is not too much of a hassle

I'll keep an eye on it and stick it over a mates inspection pit in a couple of weeks for a proper look.

 

[Osprey]

If you put a sheet of clean paper or cardboard underneath overnight you can generally tell if it's oil, coolant or transmission fluid by the colour.  Not much help distinguishing power steering from transmission though.