I own a Mazda CX-5 Grand Touring 2012 2.2L 2.2L Turbo Diesel, it has 170,000km on the clock with only upcoming major fix is a Diff bushing.

Last week i went to work and noticed a small puddle of coolant on the floor checked all the connections nothing was lose and reservoir is full.
Fast forward to day i was pulling up at the shops and steam starts coming from the engine opening the door and there is coolant all over the floor.
i managed to get the car home as was only 5mins away only thing i noticed was engine fan was running high and coolant resivor level hadent moved.

I filled up the radiator directly from the cap and it took 2L of coolant and the resivor level hasent changed at all. after runnign the car for 20mins with no visible leaks only the engine fan is going in to over drive.
From what I can see with coolant is coming from ontop on of the starter motor starter motor but i cant see where exactly.
any ideas of what i could be im going to take to my mechanic on monday.

 

These engines are known for faulty head gaskets and faulty radiator caps.

Once diagnosed by your mechanic, if it is the head gasket, contact Mazda, as these engine are getting replaced left, right & centre under a extended warranty by Mazda.

 

ok thanks yeh its definitely somewhere from the top end as coolant has sprayed all through the engine bay and it seems to be leaking centraly.