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David, VW Master Technician
Category: VW
Satisfied Customers: 2366
Experience:  VW Master Technician Certified for 9 years, ASE Master Technician Certified
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2001 jetta: driver auxiliary water pump

Customer Question

coolant leak on my 2001 jetta vr6 2.8l.   it is coming from the driver side by the airbox, i found a diagram of a coolant feed pump located there. on the actual car it looks like there is some sort of pump that is leaking at the seals, i found an auxiliary water pump online and i wonder if it is the coolant feed pump (v51) that i found online.   any ideas how i can fix this coolant leak?
Submitted: 8 years ago.
Category: VW
Expert:  David replied 8 years ago.
not likely the coolant pump, as it is located near the throttle body, unless the coolant is running down from there. If you remove the engine cover you should be able to see the after run coolant pump. If it is leaking it will be very obvious. Now this car does have issues with the thermostat housing leaking. The best thing is first locate the leak, try the after run pump and see if it is there, if not more than likely the Thermostat housing is leaking. If the thermostat housing is leaking then replace all three or two parts, depending on your model, auto or standard. Replace the t-stat also.