What would cause my car to not heat up?
A heater can stop working for a number of reasons, including: A low antifreeze/water level in the radiator due to a leak in the cooling system. A bad thermostat that isn’t allowing the engine to properly warm up. A blower fan that isn’t working properly.
How do you troubleshoot a car heater?
Method 1 of 4: Check proper fluid levels
- Materials Needed.
- Step 1: Verify radiator coolant levels.
- Step 2: Verify reservoir bottle fluid levels.
- Step 1: Turn on the engine.
- Step 2: Check the temperature change on the dashboard.
- Step 1: Locate the fan vents.
- Step 2: Check for a broken or faulty fuse.
What are common reasons my Volkswagen Passat has heater problems?
What are common reasons my Volkswagen Passat has heater problems? While there are a variety of reasons your Volkswagen Passat heater is not working, the most common 3 are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.
What happens when the heater on a Volkswagen Golf stops working?
At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. If the heater has stopped working in your Golf, this process has failed in one way or another.
Why is my car’s heater not working properly?
Blockage – The heater core is made up of many very thin tubes of metal, and if it becomes blocked the coolant may circulate as normal around the engine, but not flow through the heater core.
What happens to the heater when the valve fails?
When the heater control valve fails, adjusting the temperature may not change the air temperature at the vents, whether hot or cold. Also, the valve could leak engine coolant, p… Read More A failing heater core may cause the car’s interior to smell like engine coolant. The smell will become worse when the heater is turned on.