Hello,
I have a 1997 A4 2.4 v6, in this cold weather, below -5c when I start the car the temperature warning light comes on. If I try to drive the car the accelerator sticks down and the brakes aren't assisted. The coolant level is correct and the engine obviously is not over heating, any suggestions? When the weather warms up all is fine. I image some fluid is freezing, any ideas?

Many thank, fred