Diagnose water pump for your 2009 Volkswagen Sharan Bluemotion

Water pump is an important part of your 2009 Volkswagen Sharan Bluemotion . Through continues pumping water and coolant, it keep your engine, the heart of a car at a proper heat. If there is any leakage or a faulty bearing, it will cause serious problems. So, any driver who cares about safety problem should learn how to diagnose water pump to see if there is any malfunction that needed to be repaired or if there is any replacement work needed. In this article, we will tell you how to diagnose water pump for your 2009 Volkswagen Sharan Bluemotion .
Step 1: park your car at a garage which has clean floor and put a white paper or cardboard on the floor directly under the motor. If the floor is not so clean, you should put the paper off the ground. After a whole night passed, check the paper or cardboard to see if it is wet. If so, you car water pump or the gasket has a leakage and there should be a repairing work or replacement work waiting for you. If there is green liquid on the paper or cardboard, it is antifreeze, which means your 2009 Volkswagen Sharan Bluemotion has a coolant leakage somewhere.
Step 2: you will see a belt that goes around the round part of your water pump. Try to push the pulley back and forth to see if it if loose. If so, you should replace your pulley.
Step 3: start your 2009 Volkswagen Sharan Bluemotion engine with the hood up and listen to your car to see if there is a low-pitched grinding noise. If so, your bearings may be going bad and you should do some replacement work. If the sound is plain, then it is gone bad.
Step 4: look closely around the water pump and gasket to see if they have droplets of water or a small stream. If so, there is a leakage.
Step 5: if the thermostat warning light comes on all the time, your 2009 Volkswagen Sharan Bluemotion have a leakage or lacking of coolant. If the low coolant light is glowing, then it means that you have a leaking coolant reservoir or a bad water pump. Or you have a leak in your coolant system.
Step 6: if your air conditioner cannot doing its work properly, your 2009 Volkswagen Sharan Bluemotion may have a malfunction water pump

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