Ive had an ongoing issue for around 6 months now. Started out with the red flashing coolant light coming on for 10 - 20 seconds on a cold morning with the heaters taking about 20 minutes to get hot. No coolant loss at first.
This then worsened to the point of the coolant tank emptying from full after about 10 minutes of driving. Have had a go at clearing an airlock a few times now but the problem comes back sometimes slowly sometimes immediately. The heaters now hardly work at all, sometimes luke warm but mostly just cold air. Used to make a sloshing noise from behind the glove box but as symptoms have worsened the noise seems to have gone away.
The thermostat and water pump replaced. And the radiator and heater core flushed by a mechanic friend, he is unsure what the problem is now.
Garage has told me they think its the heater core however my mechanic friend seems to think it isn't that as it is the g12 non sachet version.
Im starting to loose patience with the issue and cant justify spending much more if it won't solve the issue.
Any advice would be massively appreciated.
Thanks.
