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2002vw passat overheats air in cooling sysyem. Need proper filling instructions.

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I have had success by unscrewing the 3 screws that hold the coolant reservoir down. Then fill the reservoir about 1/2 to 2/3 full while it is laying flat on it's mounts. Then put the reservoir cap on so that coolant won't spill out when you lift it up, and then lift the reservoir up as high as you can, which will tilt it 90 degrees because the filling hose is at one end and the exit hose is on the side. Try to raise the other end as high as possible, and you should see bubbles come up and the liquid go down. Keep doing this until no more bubbles. Start the car and run it... letting the car idle for a few minutes. The thermostat should open up after 2 or 3 minutes, and then you should see the liquid go down quite a bit. Repeat the above filling method once the thermostat opens. My guess is that if there is not enough fluid in the car, the thermostat won't get hot and open.

If that doesn't work, I would think your thermostat is stuck closed, and needs replacing.

Posted on Oct 26, 2013

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go to yahoo group for villager quest & join owner group for much more help. 2500 members.

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