Battery Electrolyte Level, Checking

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Procedure

Maintaining the correct electrolyte level in the battery is an important factor affecting the length of the batterys service life.

CAUTION: Risk of injury due to contact with battery acid.

Follow accident prevention regulations when working with battery acid → 27 - Battery, Starter, Generator, Cruise control .
Wear protective eyewear and clothing → 27 - Battery, Starter, Generator, Cruise control .
If the electrolyte level is too low, the battery must be replaced. It must not be opened and distilled water must not be added.

Risk of explosion due to open flame, fire and smoking.

Never handle open flame or burning cigarettes near batteries.

If the "min" and "max" marking on the outside of the battery can be seen, inspect by sight.

The electrolyte level must be above the "min" marking but must only go as high as the "max" marking.