Search the Community

Hi there, I got a blinking red temp light on (>100C) 15min after leaving the area I had my car parked (reallyyyy slope road, for about 3h). Opened the bonnet and the reservoir had a lot of pressure inside. I let it cool down a bit and removed the blue cap. I missed a lot of coolant that spilled out right after opening it (I was aware of severe burn risk). I called the tow truck and got my car parked at home. Then, I turned on the engine with the Reservoir cap off and tapped some of those large hoses to release some eventually stuck air. It took me about 15/20min with the engine running (so head gasket might be good?) to start seeing some bubbles again in the reservoir, some of them coming back from the bottom small hose. The top thin hose pours water back into the reservoir on idle so the water pump may be working properly. Also, the more I press the gas pedal, the more water it pours in. great! I repeated the entire process again, now turning on the Heater fully on 'hot' after starting to see some bubbles 15min after engine start. It immediately dropped the temp and stopped the bubbling while it was on (cap off). Some aspects I've noticed so far: Timing belt and water pump are new (1.5y) OK Thermostat was changed last week. OK Reservoir lid is free of residues. OK Coolant is new (1 week old). it was refilled after the old one came out due to high pressure inside the reservoir. OK No leaks, spills on the ground below the car, or missing coolant after every/some cycles. OK The radiator fan (the only one I'm aware of) only comes ON if AC (hot) is turned on (not idea if the same result with just the heater on hot). It's not turning on by itself at 100C when bubbling starts occurring (ac or heater off). Is this the problem? Pressing the gas pedal increases the pouring flow of coolant into the coolant reservoir. Letting the engine on idle also pours water in, at a lower flow. OK Do i need to add distilled water to the G12 when filling up the tank? This is the one I'm using, directly into the reservoir. Question: Should I close the lid while the heater is still blowing? When do I know there is no more air in the system? What procedures should I take? Any ideas? Ty!

Hi Guys, I have been having an issue with the fan/heating on my Vw Lupo 1.4 16v petrol for a while. The problem only affects me in winter when it is very cold (unfortunately when the heating is most needed). It takes about 20-30 mins for the engine to warm up significantly to blow out warm air. Depending on how cold it is sometimes it takes longer or shorter times to heat up (as usual in winter) but it takes a lot longer than usual for the engine to heat up. As soon as I turn on the fan the engine loses heat as well as the fan blowing out progressively colder air. I have tried to get this fixed twice but mechanics cant seem to pinpoint the problem. The thermostat on the dashboard is even telling me the car is loosing heat, but it never overheats. I have plenty coolant and the mechanic told me i dont have any leaks. Any help regarding this issue would be great!!