Question about 2005 Audi A3
Please help- - how do I bleed the coolamt system on a 1997 8L Audi A3 1.6 engine? (same as 1.6 Golf ofsame vintage I believe) I've replaced the head gasket, replaced the coolant but now I have an air lock in the system and can't find a bleed valve/nipple anywhere to bleed the system through. I can't pump the air out by hand by squeezing the rad pipes, and there's no cap on the radiator. Anyone any ideas as to how I can bleed the coolant system through?This would be a huge help, and greatly appreciated. Thanks, Andy. (not a 2005 model)
In my experience with Audis, after any job requiring changing/draining the coolant the car ideally needs to be driven. With the coolant topped up to max drive the car, keep the revs up and shake the car with steering and over bumps where possible. Whatever you do make sure you take at least 2 litres of water/coolant with you, as as soon as the air lock goes, the level drops a lot and quickly. Also keep an eye on the temp gauge and avoid letting it go much over 90 degrees (over 90 on the gauge usually means its well into the hundreds) When you get consistant hot air through the heater, at idle, the level should of settled. If this doesnt work you may have thermostat issues or a blockage. Good luck, let me know how you get on.
Posted on Mar 26, 2009
YOU WILL NEED TO GET THE CAR UPTO RUNNING TEMPERATURE SO THE THERMOSTAT STARTS OPENING AND CLOSING.!!!! THE AIR WILL BE PUSHED INTO THE COOLANT EXPANSION TANK...REMENBER TO TOP UP THE COOLANT AFTER THIS...OR YOU COULD DRIVE THE CAR ROUND THE BLOCK THIS WILL ALSO PUSH THE AIR OUT OF YOUR COOLANT PIPES ( GET SOME HEAT INTO THE ENGINE TO GET THAN THERMOSTAT OPENING)
Posted on Mar 26, 2009
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Posted on Jan 02, 2017
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