The cooling method of a VW Jetta is an Integral allotment of the overall transaction of the vehivle. Whether you operate the Jetta while it is leaking coolant, it can damage the engine, sometimes irreparably. That's why the periodic checking for cooling system leaks is a must. This preventative maintenence requires no mechanical skill, equal an affliction to circumstance.
Instructions
1. Cast on the surface where you usually stadium the VW Jetta for signs of leakage. This is the easiest journey to test for leaks and whether you dash off it a habit, it becomes nearly moment universe. It alone requires a curt glance as you tolerance the driveway or garage.
2. Expansive the hood and look the hoses that connect the radiator with the engine and the engine to heater core. Inspect for any bulging, cracking or splitting in the hoses extremely as any noticable signs of coolant leakage. These signs come in the articulation of corrosion, discolouration and dripping coolant. But, there can be pinhole or pinch leaks, which surface apart when there's coercion or heat exposure on the hoses.
3. Applicability a flashlight to trial the radiator for any likely leaks. Be sure to examine the radiator from every possible angle to verify any leakage, as the radiator is made of plastic and aluminum in the VW Jetta.
4. Check the water pump and shaft seal for any leakage. The water pump is behind the engine fan and connects directly to the engine. Turn on the engine of the VW Jetta and switch the heater to the high setting. Allow the VW Jetta to run like this for about 15 minutes. Shut off the engine and check the auto parts from the previous steps for any leaks.7.
Refill the radiator to start to pressure test the cooling system for leaks. First, twist the radiator cap one full turn, step back, wait a minute and then remove the cap completely. Next, fill the radiator to within an inch of overflowing.
6. The shaft seal is what seals the connection between the water pump and engine. Verify if there is any corrosion or discoloration to confirm the source of the leakage.5.
Verify if the coolant level goes down. If it does, but there's still no visible signs of leakage, the problem may be internal. In this case, you should take the VW Jetta to cooling system specialist for further diagnostics.
