How to Replace the Battery in an Audi A6 Car Key?
3 Answers
Audi A6 car key battery replacement method is: 1. Press the lock button and pull out the mechanical key; 2. Locate the battery compartment cover latch inside the mechanical key slot, use the mechanical key to pry the latch from inside out, then remove the loosened cover; 3. Remove the old battery, install the new one, and reassemble in reverse order. Taking the 2020 Audi A6 as an example, it belongs to the mid-to-large-size car category with body dimensions: length 5038mm, width 1886mm, height 1475mm, wheelbase 3024mm, fuel tank capacity 73L, and curb weight 1800kg. The 2020 Audi A6 features a five-link independent front suspension and a five-link independent rear suspension. It is equipped with a 2.0L turbocharged engine producing maximum power of 190PS (140kW) and maximum torque of 320Nm, paired with a 7-speed dual-clutch transmission.
Last time when the battery in my Audi A6 key fob died, I replaced it myself. I found a small gap on the back of the metal part of the key, and gently pried it open with a plastic pry tool. The old battery I removed was a CR2032 model—remember to buy a new branded one from the supermarket or online, and make sure to place it with the positive side facing up. Then, snap the key fob shell back together tightly and test if the unlock button responds. The whole process took less than ten minutes, but the key is to be gentle to avoid damaging the internal circuitry. It's recommended to check the battery every year and a half to prevent sudden failure while driving. Also, check the spare key at the same time to avoid both running out. Getting it replaced at the dealership would be more expensive, and it's unnecessary to spend that money.
Changing the battery for an Audi A6 key is super easy—I've done it several times. Pick up the key and look for the notch on the back cover, then gently pry it open with a coin or a small knife. The old battery is definitely a CR2032. When inserting the new battery, make sure it's oriented correctly, or it won't work. After that, just snap the cover back on. I always buy cheap battery packs on JD.com—each costs just a few bucks, and one replacement lasts about two years. A quick tip: be gentle and avoid using excessive force, as the key casing can get scratched easily. Also, if the remote range seems shorter after replacement, it might be due to a weak signal—try resyncing the key by inserting it into the car's ignition switch and pressing a button on the key.
