Yes, under normal operation. If you are adding coolant to the reservoir often, you have a leak somewhere. Have a trusted mechanic pressure test the cooling system to determine the cause.
Unless your radiator has a leak, the radiator fluid stays in the radiator.
To Put Transmission Fluid in you put it threw the resivior. that is the only way and i have the same car but only its an 03.
I believe Ford calls it the " brake fluid level sensor "
the resivior is on the passenger side of the motor, its white, and you add it at the same place you check it.
Where is the radiator to put fluid for 2001 jetta?
you have to put the radiator fluid in the overflow. This is the only way.
Cracked radiator end caps since the tranny fluid runs goes threw the caps for cooling that is the only way tranny fluid can get in the radiator
You replace the radiator
Bad radiator fluid.
There is no dipstick for the transmission. To check the transmission you have to open the Transmission Resivior and see the fluid level in there.