Answer
Jul 27, 2017 - 11:20 PM
Hi there,
We found this information on Blauparts for you, they are Audi/VW Parts Specialists:
“When unchecked, a leaking VW water pump can eventually create a humming noise and possible engine overheating. Experience has shown the most common causes of water pump failure to be: 1) age and/or high mileage and 2) a neglected coolant system that was not restored to the original factory intended condition during water pump replacement.
If it has been determined (not assumed) that your VW water pump is leaking, you should not continue driving the car. Continued driving with a leaking water pump (for an extended period of time) can be catastrophic. There is the possibility that the internal VW water pump bearing will develop excessive play, causing a misalignment of the water pump pulley, allowing the timing belt to rub against other components, thus resulting in timing belt failure and engine damage. The VW water pump impeller may also rub against the inside of the engine block, causing fragments and debris to contaminate the cooling system. If this debris or sediment is not thoroughly flushed from the cooling system when installing a new water pump it will eventually lead to premature VW water pump failure.”
Regarding your alternator, as per Repair Pal:
What are the symptoms related to a bad alternator?
Alternator failure while driving will cause the battery light to illuminate on the dashboard. Soon after, all electrical components will being to lose power, the vehicle will stall, and jump-starting will not be effective. The alternator can also fail due to the bearing that holds the internal rotating assembly, causing a grinding noise that changes with engine speed.
Can I drive with an alternator problem?
A vehicle with a weak alternator may be able to drive to a repair facility for diagnosis, but a vehicle with a failed alternator will not run after an external charger is removed from the battery.
As per AutohausAZ, most early problems start from poor electrical connections due to loose connections and/or buildup of corrosion, especially at the battery posts. Important to keep the battery clean.
We would advise you to take your car to an experienced certified mechanic that is familiar with your particular model. Alternatively, go straight to a VW service dealership. They can assess your vehicle and advise you accordingly.
Hope this helps,
The AutoTrader Team
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