Why is the thermostat on my Volkswagen not working?

Why is the thermostat on my Volkswagen not working?

The thermostat on your Volkswagen helps the engine keep operating at a predetermined temperature for best fuel economy and engine performance. However, the thermostat mechanism wears down after months of use and subsequently fails. If stuck in the closed position,…

What kind of drill do I need for Jetta thermostat?

A 3/8 drive 13mm or 1/2in deep well socket (and ratchet), 10mm deep well, 5/16 standard, 5/8 open end, 5/32 drill bit (or something similar in diameter), 5mm Allen wrench, large slotted screwdriver and a basin to catch anti-freeze. Loading…

How do you change the radiator on a VW?

Raise the front of your Volkswagen with a floor jack and support it on two jack stands. Detach the insulation tray from the bottom of the radiator using a ratchet and socket, if your particular model is equipped with one. Place a catch pan underneath your Volkswagen radiator. Open the radiator drain valve and drain the coolant.

What happens if the thermostat is stuck in the open position?

If stuck in the closed position, the thermostat will not allow coolant to circulate, causing the engine to heat up dangerously; if stuck in the open position, the engine will never reach proper operating temperature, causing fuel consumption and poor engine performance. In either case, the thermostat must be replaced.

What are common reasons my Volkswagen CC has heater problems?

What are common reasons my Volkswagen CC has heater problems? While there are a variety of reasons your Volkswagen CC 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.

Where is the coolant leak on a 2012 VW?

2012 VW CC COOLANT LEAK…APEARS NEAR FRONT CENTER OF ENGINE NEAR THE BOTTOM. 40K MILES, HOSE ORIGINAL (5 YEARS 2012 VW CC COOLANT LEAK…APEARS NEAR FRONT CENTER OF ENGINE NEAR THE BOTTOM. 40K MILES, HOSE ORIGINAL (5 YEARS – Answered by a verified VW Mechanic

How does the thermostat work on a Dodge Ram?

When the engine is cold, the thermostat stays closed to block coolant flow to the radiator, letting the engine warm up faster. Once the engine hits a certain temperature, the thermostat opens up, allowing coolant into the radiator, where it can cool off and keep the car from overheating.



How does the cooling system work on a VW Jetta?

Your Jetta’s cooling system works by cycling the engine coolant from the engine through the radiator. The water pump pushes the water through the entire system. The thermostat opens up once the engine reaches operating temperature and allows coolant in. If any part of this system fails, your Jetta will eventually overheat.

What happens if you overheat a VW Jetta?

Overheating can cause a lot of expensive damage to the engine. A blow head gasket or a cracked head/block are much more expensive to repair than a thermostat or water pump. Your Jetta’s cooling system works by cycling the engine coolant from the engine through the radiator. The water pump pushes the water through the entire system.

What causes a Volkswagen Jetta head gasket to blow?

If your Jetta’s engine gets hot enough, the coolant will begin to boil over and manifest itself as steam coming up from under the hood. It does this to relieve the pressure on the cooling system before lasting damage can be done to it. 3. Blown Head Gasket