Skip the auto shop - Our mechanics make house calls

Q: Mold and water found in base of battery compartment

asked by on

After we had spent a considerable amount of money on an unresolved engine light issue and hoping no more problems would arise with our SUV, the next week I tried to open the door with the remote and it didn’t open. I found that the battery was dead when I tried to jump-start it. I had just replaced the battery only 7 months before this. When I lifted the floor mat to uncover the battery compartment, it was molded. I removed the battery cover and the battery and found 2 inches of brown water in the base of the compartment. Also, the other battery that we had kept also had mold on it. Fortunately, this happened while we were at home and not caught out in the heat of this summertime. We can’t figure out how long the water had been there or how the water even got into the battery compartment. We took pictures as evidence to send to Saturn customer care. Can you tell me how the water got into the battery compartment and should we keep the SUV out of rain?

A: Hello. It sounds like the back window seal ...

Hello. It sounds like the back window seal or trunk seal is leaking water, which is allowing water to get into the battery compartment. The water and mold is affecting the life of your battery, and the leak should be fixed as soon as possible as to avoid damage being caused to other wiring in the car. It would be a good idea to keep the car out of the rain until the leak is fixed. Have a certified technician, like one from YourMechanic, complete an inspection to pinpoint the leak and make the necessary repairs.

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: Oil on hood release

If a gasket was recently leaking motor oil and it is now leaking oil again, the best option would be to reattempt the repair with a new gasket and clean the mating surfaces of the two parts a little better...

Q: Car hopping at stops and stalling

Hi there. When you feel the brake pedal pulsate and create a 'jumping' type of feel, it's typically caused by an ABS system sensor failure (if this is noticed in the brake pedal itself). However, if the engine or entire...

Q: Changed alternator and battery, but still says check charging system

Hello and thank you for writing in! This is likely a sign of a bad voltage regulator. This is a unit that regulates the charging of the battery from the alternator. When this is not functioning properly, this can cause...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...