Skip the auto shop - Our mechanics make house calls

Q: Water was spilled in the trunk which soaked the car battery. Car won't start now. Does water destroy a car battery?

asked by on

I was on a road trip with some friends and bought a bottle of water and put it in the trunk. I forgot about that bottle of water and a few days later I got a call from a friend that the cap came off the water bottle while it was in the trunk and now the car won't start. Because the battery is in the trunk, the theory is that the water destroyed the battery, which is why the car won't start. Now I'm being asked to buy a new battery. I'd love to know if water can destroy a car battery or what other possibilities might be.
My car's transmission is unknown to me.

A: Hi, thanks for writing in about the concern...

Hi, thanks for writing in about the concern with the BMW 320i. If the battery was submerged in water then it’s completely possible for the battery to short out and die. Your friend will need to have the battery replaced. Also be sure to get all of the water out of the trunk. Have a certified technician, like one from YourMechanic, help you guys out if you need assistance with replacing the battery. Good luck.

Was this answer helpful?
Recommended services
Get a Quote

Need advice from certified mechanic? Get help now!

Over 1000 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

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: My car will not get over 20 mph. What is wrong?

The battery replacement seems to be a coincidence and has no bearing on the symptom you are experiencing. The only exception to this would be if during the battery replacement, any essential wiring was disconnected or damaged, such as the...

Q: Squeaking Breaks

If your brakes are squealing, this can be caused by a number of different things.The quality of the pads can make a huge difference in the braking performance. If ceramic pads are recommended for your vehicle and semi-metalic pads were...

Q: Battery light on while driving but then goes off?

This may be a sign of a failing alternator. As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator. The voltage...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.