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.

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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Water was spilled in the trunk which soaked the car battery. Car won't start now. Does water destroy a car battery?

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 Does a Battery Work With a Car's Electrical System?

One of the most recognized mechanical parts under the hood of any vehicle is the battery. Whether you're an ASE certified master mechanic or have never turned a wrench, everybody can pinpoint the location of their vehicle's battery. Although most...

Q: How long does it take to replace the lower radiator hose on this car? Do you think that $360 is an appropriate amount for the labor to replace this hose?

Sent to CS. Hi there. Replacing a lower radiator hose on your vehicle can take up to 50 minutes at a shop. Most shops will charge for replacing the hose and filling the radiator as 2 separate service times. This...

Q: Why does my E46 BMW M54 not start properly?

Hello there, many faults will cause your 2003 BMW 320i to run poorly on cold start and have a cylinder 4 misfire. You have done great in replacing the coil packs, plugs, and vacuum pipe. Common faults would be a...

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 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...