tonya2 Posted January 22, 2007 Report Share Posted January 22, 2007 I own an A2 and for months now, I keep getting the low coolant warning light. I check the coolant, and its low, so i top it up. This has happened for about 4 months now in total. I have taken the car to the garage 4 times (twice to an Audi main dealer) and nobody can diagnose the problem. Someone has told me it might be the head gasket on its way, but no garage has been able to confirm that yet and there are no obvious symptoms that i can see. Until recently, nobody could find where the coolant was going, but i've managed now to see that the coolant is being forced out of the coolant reservoir through the small release hole at the top. It seems that as i'm driving, the pressure building up inside the cooling system is enough to force the coolant out (is there supposed to be so much pressure?). Audi have suggested that they need to strip the engine at a cost of about £400, just to see what the problem could be, so i'd rather not have to do that. Has anyone had a similar problem with an A2 or any other Audi as i'm really worried that continuing to drive it will cause serious damage, but i dont have any other choice at the minute. Link to comment Share on other sites More sharing options...
kite Posted January 22, 2007 Report Share Posted January 22, 2007 Could you have an airlock in the system. Maybe run the car at fast idle with the rad cap off to try to bleed any trapped air. Link to comment Share on other sites More sharing options...
tonya2 Posted January 22, 2007 Author Report Share Posted January 22, 2007 guess it could be that but you would think that 4 times at the garage would have found that. also, Audi stated that they had drained the system and refilled it, the first time it went in!! Link to comment Share on other sites More sharing options...
paul_tdi Posted January 22, 2007 Report Share Posted January 22, 2007 May be the thermostat is not opening when engine is warm allowing a build up of pressure. Link to comment Share on other sites More sharing options...
s4_sat Posted January 30, 2007 Report Share Posted January 30, 2007 Water pump is on the way out. The coolant light comes on then the water pump isn't working properly. Get it done at the same time as the cambelt cos they need the engine to be moved a bit out of the engine bay. Link to comment Share on other sites More sharing options...
MarskeBear Posted January 31, 2007 Report Share Posted January 31, 2007 wide 53 plate A3 has been losing coolent too, There has been some dripping under fron driver side wheel so took it to stealers and they said it needed a new expansion tank-£157 thank you. no thanks, round to part-£20 tank, 2xG12, 10min work. See how it goes. The fan comes on from time to time but engines isnt warm or on start up then goes off. Like a bloody bomber starting up. Link to comment Share on other sites More sharing options...
ahaydock Posted February 14, 2007 Report Share Posted February 14, 2007 Cylinder Head? Link to comment Share on other sites More sharing options...
sheffA2 Posted February 14, 2007 Report Share Posted February 14, 2007 I can pretty much guarantee you have a warped cylinder head. I had exactly the same problem. Was loosing loads of coolant and no one could work out where from. Took it to the garage 3 times, had a new water pump and a new thermostat but it made no difference. Finally worked out the the pressure was building up and forcing the water out of the reservoir. One time, the pressure built up so much the cap blew off the top of the reservoir and they had to replace the whole reservoir. In the end the cylinder head seemed to be the only thing it could be, so I had to have it replaced at a cost of over 1000 uk pounds. This fixed the problem. Link to comment Share on other sites More sharing options...
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