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Hi all,

Looking for some advice. I have a 7 year old B-Max with under 40,000 miles on the clock, it has had a service and MOT with Ford every year during its lifetime. This year they found that the coolant is leaking (the expansion bottle was empty) but there is no visible signs of where it is leaking from. They want to do a closer inspection, but if the coolant is leaking into the engine it is likely a write-off- a shame for such a young car with so few miles. They replaced the coolant expansion cap, could this be where it has lost all of its coolant?

Thanks
 

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yes a faulty coolant cap can cause the symptoms you have and other problems too.
without knowing any details of how you drive the car, or how much coolant is lost, it is impossible to remotely diagnose further.

check the fluid level over time and if it drops noticeably, or the engine starts to overheat; then go back to the garage for further advice.
 

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If you end up back at the gartage, get them to do a pressure test on the cooling system.
You can also buy the pressure testing pump and do it yourself, once under pressure any leak will appear, best to do it on a cold engine though.
 
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