Last night i noticed the car over revving slightly and steam coming from the engine bay.

This was only after a 5 min drive.

I left it until this morning when cool, and i had to put nearly 5ltrs of water back into the rad.

 

I looked under the car and water was dripping.

 

Does anyone know were it could be leaking from?

 

Cheers

there are heaps of places... where about under the car is the leak (front, back, side)?

Sorry 5 pints

Near the front...

First thing is to check the hoses where they join the top and bottom of the radiator and also follow them to where they both join at the front of the engine. Check for damage to the hoses and that the clamps are in good condition at the ends of the pipes. Also I think the expansion tank pipe connects at the bottom of the radiator on the right hand side, so worth checking too.

Edited April 6, 201312 yr by Adam D
my spelling level of a 5 year old

just park it up on a flat dry surface and see where it drops down, failing rad caps are common, as are overfilled or cracked expansion bottles(results in water coming out near the passenger front wheel. the two little pipes that connect the heads to the top hard pipe on the block also fail. if its a twin turbo model the water cooling for the turbos happily split causing steam at the rear of the block. try to work out roughly where in the bay its coming from and if it occurs all the time the engines on, only when hot(pressurised) or just constantly.

Thanks for the advice. getting it up on my mates ramp tomorrow, so i will for whar u have suggested it could be.

Cheers

 

ps - it is a tt model

My suggestion - waterpump.

 

I had the same thing last summer; the car would lose coolant with the engine off after even the shortest drive. Then when I re-filled the radiator, coolant would just drip out from the front of the engine like a tap - the undertray re-directs the flow further back though; hence the puddle on my garage floor was about 6 inches behind where it was actually dripping from!

 

Luckily I was able to make it 100 miles to Jeff's, without too much coolant loss, so he could fix it for me. As said, it was worse when the engine was off.

 

Richard:oops:

Mine was the same as Richards - waterpump

I put a little more water in the rad this morning and had it up on a ramp but couldnt see anything leaking this time?

 

However I have noticed the rad cap is slightly faulty. It is hissing slightly. I took it off and put more water in and turned the engine on. I noticed air and the water was bubbling? could this be a head gasket issue? I'm thinking the water may of been leaking from the faulty rad cap?

 

there is no water in the oil and the oil filter cap seems fine...

 

Just not sure why it is bubbling, trapped air maybe?

most likely yes if you've not bled the system out properly. it probably caught up round the heater matrix.