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There is a common fault with the cam belt driven waterpump on VAG engines as they use a plastic water-drive. The water-drive on the pump shaft breaks up or free and no longer circulates the water. Replace water pump.
If it where your water pump isthe vehicle would overheat.
After you replaced the thermostat do you run the engine at idle with the radiator cap removed until the radiator fan came one?
This will help push the air out of the system.
There are two other possibilities.
1. The heater core is plugged. Back flushing the heater core may help remove the built up debris and get you heat again.
2. The blend door may not be fully transitioning from cold to hot. You should be ale to hear a district change in how the air sounds when switching from full hot to full cold.
Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!
no, just remove the belt, then the cover over the waterpump then the waterpump pulley,NOTE; loosen waterpump pulley bolts before removing the belt,just loosen dont remove!,next is to remove bolts holding waterpump and pump comes out,
There is a pipe that connects to the rear of the waterpump right where you say it is leaking. I would guess the seal is leaking. Since you have to remove the pump to replace the seal, you should replace the waterpump.
These engines commonly blow the headgasket when overheated, and commonly overheat and leak coolant when the headgasket is blown. So it may be hard to say what came first, but either way you will need to determine if the headgasket is OK before you make any repairs.
hey if you changed all of that, i think the problem is the waterpump, my car had that problem and finally i found that that was leaking from the waterpump, but very carefull if you change it because if you move the timing belt the wont start. a mechanic charges around $225.00 to fix the water pump, the water pump is around 42.00 to 50.00 don't pay more than that.