The fans could also not be coming on at the low speed. My E420 is about to have its 4th repair for this. It is either the resistor, or more likely, the wire going to the top of the resistor - it gets too hot, and fries itself off.
In my car's case, it has been the resistor once, and the wire three times.

Once you turn on the A/C, the low speed should come one shortly thereafter. If it does not, and the car gets quite warm (the A/C won't feel so cool either) the high speed fan will eventually turn on, and cool things down.

The idiot that ordered the degradable wiring for the harnesses is probably the same idiot responsible for the resistor wire being too small.

__________________
It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D