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.

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: I have BMW Z3 with not knowledge of the service history for the past 9 years. Car has 130k miles. What needs to be checked and done on the car?

Hi there. Perform a 75 point safety inspection on the vehicle and make sure that all of the safety features to the vehicle are in good condition. Then check the condition of the coolant, belts, and tires. Then if the...

Q: Truck will crank, but engine won't start - 1973 Chevrolet K20

Hello there, thanks for writing in. The wiring diagram for the ignition system of your vehicle is pretty simple. Power flows from the ignition switch to the coil. When the engine is cranked, the points open and close to create...

Q: Bmw 2005. e90 320i N46, have cel on, code is p0013. Engine is stalling, consumption is higher. What do you suggest?

Hello. P0013 is the code for a malfunction of Camshaft Position Actuator Circuit B (Bank 1). It may be possible that there is an issue with the cam actuator or the Vanos oil control solenoid. If either of those components...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.