I have a polo classic 1.4. The fan is not switching on causing the car to overheat. Was told to replace the gasket, The Cylinder head and Thermostat but still have the same problem. But there is nothing wrong with the fan, it spins when connected to the battery. Please help me Chan

SOURCE: VW Polo Classic 1.6 Radiator fan not going on

Try moving the fan blades by hand to see if the fan spins freely to see if the problem is frozen bearings in the fan motor. Replace the fan motor if it doesn't turn. If it spins freely disconnect the wires and hook the fan directly to the battery using a jumper. If it runs the problem is most likely the thermostatic switch. If it doesn't the fan motor is bad.

SOURCE: VW Polo Classic 1997 IDLE Problems

Hello, VW polos 1.0, 1.4. 1.6, suffer from carbon bulid up in the throttle bodys causing bad idling, esp the Bosch Mono-Motronic (Throttle Body Injection systems), a good clean with carb cleaner should repair the problem, also engine temp sensor replacement and idle speed control valve replacement can help idle problems.

SOURCE: MISFIRING ON CYLINDER 1 VW POLO 1.4 3CYLINDER

I have changed a few cylinder heads under warranty for this type of problem. The exhaust valve guides wear, this causes the exhaust valve to seat badly, giving low compression. if one cylinder compresion reading is more than about 50 psi below the others, then this warrants head removal. It is quite a job, due to the fact that the camshft id chain driven. If you are up for it then once the head is removed, poor liquid into the exhaust ports and see if it leaks out through any of the exhaust valves.

SOURCE: 1997 polo head gasket

really it would be advised to get a mechanic to do it as there are many small areas of speciality you need to know

SOURCE: 1997 polo overheats even after removing thermostat

I am not familar with your specific car but if it overheats after the thermostat make sure the coolant level is full. Some cars can hold qiuite a bit of air in the cooling system. Open the radiator cap and slowly add a 50/50 water/coolant mixture until the radiator is full. With the heater level switched to hot, start the car and watch and see if the coolant level drops it may take a while for the air to move out. If the coolant level is full but it continues to overheat then I would suspect the water pump is not moveing the coolant thru the system or the electrical cooling fans (assuming you have them) are not coming on. If the car has electrical cooling fans and they are not coming on when the car is over heating you may have a sensor problem or an power problem. If the electrical cooling fans turn on but the car overheats although the coolant level is full I's suspect the water pump and/or a radiator that needs to be flushed.