vw tells me the pump is defective, bad water circulation. i noticed the fans did not turn on when it began to overheat. is that irrelevant with the pump being defective? i even drop the car cold(i started the engine and drove) within 10mins it began to overheat, but the fans did not turn on. is it just the pump? the fan switch is new, no fuses are blown. the radiator and fans are less than 2 yrs old. 2000 jetta
take the car to another mechanic as it sounds like the VW dealership doesn't know what there talking about.
if the fan doesnt turn on, check the fan relay and the fan fuse.
You should've noticed the worn out tires before u even stepped foot in the car. Go to any tire shop and get new tires, they will balance them when installing the new ones and that will take care of the vibrating. As for the water pump going out, I agree that that shouldn't have happened at 27k
The fan switch on that car is in the thermostat housing so it would not turn on. It is very common for water pump to fail on those cars. The cooling fans help keep the water in the radiator cool if you r water pump is bad, and us ally what happens is the impeller falls off, no water is moving from the engine to the radiator.
It could overheat in much less time. It sounds like something is wrong with the fans regardless. If you have a radiator with a fill cap, you can check for circulation from the fill neck. You will need to accelerate and watch for flow from engine. Your thermostat will need to be open before you can do this, so give it a few minutes for this to work (up to 190 degrees). It is rare for water pump to cause circulation problem. The impellers on the pump rarely are a problem if you maintain the car. Pumps normaly leak from the weep hole or the bearing will fail. Thermostat failure will not allow for circulation and it will show quickly.
