Hello Guys,
I'm Looking for some help/advice, I've recently bought a 2015 Audi A5 3.0ltr Tdi Sline Black Edition, I absolutely love it, but it has developed an annoying & worrying problem, It keeps losing the coolant, (it runs at 90°, it doesn't overheat or anything) I have had it in 4 different garages, who have done various diagnoses on it, I've had a compression check, a sniff test on the water system, a water system pressure test, it's been on several ramps with different mechanics under it, with no signs of coolant leaks, nothing getting onto the oil, no signs of water escaping from anywhere. the car drives as it should, no loss of power, gearbox cycles up & down through the gears as it should, no warning lights, The other thing I might not have to top coolant up for a couple of days, but then I could have to top up every other day.
Then the coolant could also be right up under the lid, When I've driven to work (roughly 25miles) & park up there's steam coming out from under the bonnet somewhere, if I lift the bonnet the steam can't be seen. it's driving me nuts!
The car was serviced just before I purchased it (engine, gearbox & rear diff)
The garage I bought it from had it back & reckons there was a crack in the expansion tank, which they fitted a new tank & a new cap, but that didn't solve the problem, they have now said they're not interested anymore.
Has anyone had the same problem?
Or can someone point me in the direction of what to look for please
I'm Looking for some help/advice, I've recently bought a 2015 Audi A5 3.0ltr Tdi Sline Black Edition, I absolutely love it, but it has developed an annoying & worrying problem, It keeps losing the coolant, (it runs at 90°, it doesn't overheat or anything) I have had it in 4 different garages, who have done various diagnoses on it, I've had a compression check, a sniff test on the water system, a water system pressure test, it's been on several ramps with different mechanics under it, with no signs of coolant leaks, nothing getting onto the oil, no signs of water escaping from anywhere. the car drives as it should, no loss of power, gearbox cycles up & down through the gears as it should, no warning lights, The other thing I might not have to top coolant up for a couple of days, but then I could have to top up every other day.
Then the coolant could also be right up under the lid, When I've driven to work (roughly 25miles) & park up there's steam coming out from under the bonnet somewhere, if I lift the bonnet the steam can't be seen. it's driving me nuts!
The car was serviced just before I purchased it (engine, gearbox & rear diff)
The garage I bought it from had it back & reckons there was a crack in the expansion tank, which they fitted a new tank & a new cap, but that didn't solve the problem, they have now said they're not interested anymore.
Has anyone had the same problem?
Or can someone point me in the direction of what to look for please
