Golf 2001 heater not working and temp needle stays at 0
Hi folks, I have a 2001 VW Golf 1.6 petrol 4 spd auto. it was working fine until a whole bunch of problems suddenly came up. the temperature needle stays at 0 no matter how long I drive the car. I changed the coolant temperature sensor but it still stays at 0. I turned on the heater and it only gave me very slightly warmer air than outside (despite being very cold outside) and the engine revs up a little more than it used to before all this. I believe the temperature problem is somehow related to the problem with gear and heater. don’t wish to spend a lot of money on it as it is an old car so hoping for some suggestions and fixes here :) thanks a bunch
Is this a good question?