Skip the auto shop - Our mechanics make house calls

Q: Liquid draining from battery

asked by on

A liquid of some kind is draining from the battery on my BMW Z3. The battery and alternator check out OK. But what could this be coming from my battery? Do you have any ideas or thoughts about how I can stop this? How long will my battery be OK like this before it starts to fail? Thanks.

A: Hello. There’s really no time frame that yo...

Hello. There’s really no time frame that you can guess as to how long the leaking battery will last. But it definitely expire at some point from its fluid leakage. The fluid that is leaking is known as battery acid. The battery acid is used to conduct electricity throughout the battery and to help hold an electrical charge. Without the proper acid level the battery would not be able to conduct electricity needed for a proper charge. I suggest that you have a certified mechanic verify the source of the leak and replace the battery if necessary. The battery may leak if the case is cracked or overheating.

Was this answer helpful?

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

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!

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: Stalling and misfiring at idle on a 1999 BMW Z3

Those things are notorious for getting vacuum leaks on them because the tops of the engines are all made out of plastic--including the intake system. Especially on the driver's side, there are all kinds of plastic piping. You'd want to...

Q: Suburban won't start with no interior lights at all

It is possible you did burn out the BCM. The BCM relies on grounds in the harness and when you disconnected it, you may have disconnected the wrong connector first and it will burn out the internal circuits of the...

Q: Possible transmission failure?

This may be a result of low transmission fluid or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various sensors such...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...