Why is my new thermostat not working in my car?

Why is my new thermostat not working in my car?

Still, a failing thermostat is not the only cause for an abnormal engine operating temperature. Other reasons include low coolant level, a bad water pump, a worn out or loose water pump belt, cooling system leaks, a clogged radiator, a failed radiator fan and a collapsed radiator hose.

Why is my engine not heating up?

A faulty or broken thermostat is the most common cause of your car’s failing heat. Stuck open or stuck closed, the part can not only cause issues with your heat but also your engine’s cooling system. One becomes an issue of comfort, the other becomes an issue of “Oh no, I’ve borked my engine.”

Why is the thermostat on my Volkswagen Golf not working?

The job of your Golf’s thermostat is to regulate the temperature of the engine. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up. Sometimes when a thermostat goes bad, it stays stuck open. This allows the coolant to continuously enter the engine.

Where does the water heater go in a VW Golf?

Check under the bonnet where the inlet and outlet heater plumbing run into the bulkhead because it’s not unusual to find the heater matrix disconnected altogether, or the VW non-return valves removed or replaced by solid bits of pipe inserted to transport the water back and forth.

What to do if your golf heater stops working?

If the heater has stopped working in your Golf, this process has failed in one way or another. A word of caution: If there is no coolant in your overflow, you can refill it by adding more to the overflow reservoir. There is almost never a situation where you would need to take the radiator cap off of the radiator to add coolant.

What causes a VW Golf heater to split?

This is caused by the matrix can blocking, causing it to split, which in turn soaks the passenger footwell with water (and hopefully not your passenger’s feet with hot coolant).