Hi Folks, I'm hoping someone can help me with a few little problems. I have a little 2005 Cooper Convertible with 58k on the clock. I only bought it recently and have noticed that the coolant resevior is emtying over the period of about a day. The car has never overheated and the temp needle always stay's around the mid mark. I can@t see any water marks around the engine and theres no droplets in the oil. The radiator fan goes off at the time the engine is switched off which makes me think that there is no overheating.

I also have a an ABS and Tyre indicator light coming on. The tyres are all brand new and without punture. The lights are yellow.

Anyone any ideas ??? Help would be much appreciated.

Firstly, the ABS issue could simply be dirty fins on the inside of the discs - Brush them down mate (And the sensors)...

Secondly, if you ARE losing coolant and not a trace on the floor then it has to be going somewhere... Maybe through the cylinders, Have a smell at the tail-pipe and put your hand over it and get back to me with your results...

Could be leaking into one of the cylinders through the gasket as what Dabzy-spanner-Boy said. If the car is overheating but you don't know about it, it would dump the water out the expansion bottle via the overflow pipe and you would never know as it would do it as your driving maybe.. (Ref: My E39 done just that)

Those new minis got soooo much plastic shite covering the actual block from view it maybe throwing it out on the floor at the lower end of the plumbing maybe. Let it run for a while to get it nice and hot then hold a 2k rev for about 30 seconds to build up some good pressure. Check the floor after. (Again... All things I done on my E39 that helped me)

Get back too us with your findings!

Daz