dazahill1

No not losing coolant (well not after the pump got replaced last month as that was leaking badly) Thought it could be a stuck thermostat. Yeah if I keep driving the issue does correct itself. Haven't actually managed to pull over when the issue is happening to check that top hose. However after correcting it can feel that hose being hot

Haha only took me a day to figure it out. Really appreciate the piubtrr though. Gives me an avenue to explore First time I have ever bought anything but an old banger....shame its not gone to plan.

Just looked into what u said above woth the 6months. Apologies I thought u meant warrenty but its rhe consumer rights act thing.....so thanks that' is an avenue I will explore.... If anyone has any other thoughts on root cause of the issue would be great to hear

Hiya mate. Thabks so much for the comment. So with cazoo they are saying they only of cover warrenty for 3 months. The issue occurred after that so think I am stuck on that front. So the guy working on it had a look at it after water pump replacement and bleed the system to make sure no air locks and refilled the coolant. It's weird. The car gets to 90 degrees quite quickly on a cold start but knee it hits 90 ac hot air immediately stops then goes ice cold and then a minute or two kater the temp spike on the coolant gauge goes up to maybe 115 then with easing off the gas and blasting the heater (still cold) goes back to normal at 90. If I pull over and leave it for a minute or two and restart issue has gone. Car drives fine and no issue with loss of heat from the aircon Almost seems like the problem is something isn't working when the coolant hits 90 and gets stuck until the issue resolves or something clears then it's fine for the rest of the day Only happens from a dead cold engine start??

Hi all. This is my first post so I'm sorry if I haven't got this in the right thread. Had my car from used at 28k miles. Bought online from cazoo and came with 3 month warrenty. 1 month after that expired had the dreaded overheating warning on dash and coolent temp spike into the red. Turned on heater to full and slowed down and it went away and temp back to 90. This happened once more. Ten to garage as researched on here and suspected water pump failure. This was replaced and coolant flushed. However this is still happening. Coolent temp hasn't hit red but on a cold start from overnight about 5 minutes in the ac heat blows cold and then the coolent temp spikes again to maybe 110....again slow down fiddle with ac heat and it reduces and then stays there for the rest of the day Please help as I'm at my wits end after footing a hefty bill to fix water pump already. Now looking at a thermostat replacemebt and getting quoted 400! I'm worried the local independent (they did the waterpump) are just using trial an error here and its costing me a fortune Really worried as love the car when it's working It's mk3 1.4tsi Dsg