Battery Acid Rust Repairs

Acid batteries have the tendency to boil over from either being overcharged or overfilled with acid. If the problem is treated properly, rust repairs generally are not needed down the road. However, many times battery acid is left on the metal of the car’s front pan, and over time it begins to corrode and rot. By this point, proper metal fabrication and replacement is needed. We highly recommend replacing your acid battery with a gel battery, as these cannot boil over. By doing this early on, you can prevent the rust and corrosion that results and therefore increase the value of your Porsche by maintaining its original sheet metal. However, sometimes the damage has already occurred and proper treatment is needed.

Below is a gallery of two separate battery acid-related rust repairs on Porsches. The first vehicle is a M491 Widebody 911 Carrera which experienced battery acid overflow into the trunk many years ago. Luckily, the front pan was not extensively rotted and we were able to preserve the original sheet metal. If this were left untreated, the car would need the front pan replaced down the road. The edges of the gas tank were also affected due to acid absorbing into the foam seal, which resulted in proper treatment and refinishing the tank. The second vehicle shown is a 930 in which the battery actually exploded inside the car. The damage was extensive, as shown in the photos. If this would have been left untreated, it would only be a matter of time before the acid began to do extensive damage. Even though this is certainly not a favorable situation, it can be repaired properly and prevented again by utilizing a gel battery.