Started my car this morning, sounded like my engine was knocking, I get on the highway and after about two miles the sound stops completely. I stop at a traffic light, accelerate and then I see a bit of white smoke behind me, it disappears then a second later my temp gauge spikes, the red warning light flashes and I pull over.
Pop the hood, and coolant is all over the back of the engine and the underbody metal below that. Looked like the coolant tank failed.
I live in an apartment for school, home (with all of my tools) is an hour and 30 min away so I get my car towed back to my apartment. I filled the expansion tank with distiller water. Started my engine again and let it warm up to running temp and there was no sign of leaking, rev'd the engine several times, let it ran for a few minutes...nothing.
Then I drive it gently around, after about 5 minutes it overheats again.
I have to wait for Monday to see if any of the local dealerships have a new tank. I have class at 9am on Tuesday so I need to fix my car Monday.
Any suggestions on what to look for to see if it is on fact the tank? Both times there was coolant on the power steering reservoir and dripping down the side for the top.
Sounds like a head gasket. Normal Mini head gasket systoms of runs fine and then overheat all of a sudden and no leaks outside. The tank is boiling over and venting. That's where the coolant on the PS and header are coming from.