Hello,

I had a coolant leak and took it to a mini dealer to check out. was told they were confident that they had found the leak and the gearbox oil cooler needed to be replaced only. agreed to this and within 2 weeks the engine coolant was leaking again. When I opened the bonnet, the coolant was completely gone. took it back to the dealer and now they say the thermostat housing needs to be replaced as it is leaking. they said "We were confident that it was only the gearbox oil cooler and when we pressure tested the system, we did not see any other leaks. If the oil cooler and thermostat housing were leaking at the same time, the pressure would have dropped quite quickly but when we pressure tested the car the initial visit, it did take over 1 hour of constant pressure in the system to identify the gear box oil cooler leaking." At the same time the garage also carried an MOT and the car passed. The explanation I have been given is "It has passed as it has no faults during time of testing as we have filled the coolant in the car prior to the test" Does all of this sound right? Please help I don't have a bottomless bank account. Thank you.