Q: Loud bang and engine shuts off

asked by on

When headed home, driving around 35 mph in the city, there was a loud bang and my car’s engine shut off. I put the car in neutral and rolled to the side of the street. After getting it to the repair shop, I found out that the water pump had fallen apart and that action had destroyed the timing belt and the engine head. It was so fortunate that I had been driving at a slower speed when it happened. There are a lot of reports online about this make/model/year having this trouble and causing catastrophic engine failure, but VW denies knowing about this widespread problem. The dealership told me that no new part would replace the water pump and that they were putting the same water pump back into my car. They said they replaced the engine head, belt, misc. bolts, etc. I am totally concerned that this car is not safe to drive any more. Please advise me as to what I should do in order to get my car fixed properly and safely.

Hello. If the dealership replaced the head, belt, and associated components, the vehicle should be safe to drive. Water pump failures are actually a common occurrence on that vehicle, due to the original water pump pulleys being manufactured out of plastic. Newer designs are available that come with a metal pulley to avoid this issue. I would discuss the issue with Volkswagen, especially if the vehicle is still under warranty. If they cannot help you, I would recommend at least [having the water pump replaced](https://www.yourmechanic.com/services/water-pump-replacement] with an updated design by a certified technician from YourMechanic, in order to avoid this issue from occurring again.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Loud bang and engine shuts off

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I turn speed control on?

To turn on your speed control, press the On/Off button on your steering wheel. Press this button again to turn the system off.

Q: Am I able to drive with misfiring cylinders?

Unfortunately, with two cylinders misfiring, this represents 50% of your motor not firing properly which results in a significant reduction of power output by your engine. While the car may be driven, this may be risky as this may cause...

Q: Engine knocks as a result of a valve problem

Your engine is a 3.5 liter not a 3.2. The dealer may have a limited service campaign for an oil line to the variable valve that can starve the valves for oil and cause a leak. This was a limited...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...