I've got a Mini Cooper, only had this for just over 3 months, noticed over the last month the coolant has been used up quickly, yesterday I did a long journey in it and noticed when I got home there was a leak as a puddle of wet under car, coolant was up to the level yesterday, checked this evening and it's totally empty, it's not over heating and oil/ temp all fine, can any one help?

 

Meant to say its a 2002.

 

I know this post is a few days old but I'll do my best to help. What area of the car is the water coming from? If it's right up front left or right it could be the seams on the radiator between the plastic tanks and the aluminum core or it could be the upper or lower hose where it attaches to the radiator.

My first leak was the seam on the passenger side tank on the radiator.

My second leak was about middle of the car just behind the engine and it turned out to be the 4-way hose connector for the heater hoses. That 4-way connector has a tiny little tube that connects the two sides together and allows air to bleed out of the bleeder screw on top of the connector. Mine had a tiny crack around the little plastic tube between the two sides of the connector. I almost never found that leak. I replaced the coolant tank thinking it was leaking then when I replaced the clutch I could see the bottom of the 4-way valve from under the car... there was my leak.

Lots of plastic parts and rubber hoses in this system but location of the drip can point you in the right direction.

Tony

 

Thanks for advise tony.

I took my mini to local garage to find out it needed a new radiator, since this has Been replaced, the coolant keeps on boiling up, does this mean there's 2 much in there as the garage had filled up both areas, I know the level it should be at but as I just checked it was over the max? It seems one thing after another?

 

What model car do you have? The coolant tank is known to be a trouble spot on the early models. What area of the car do you see the puddle under?

Tony