How to Replace the Battery in a 2003 Mercedes-Benz SL55 AMG Key Fob

How to Replace the Battery in a 2003 Mercedes-Benz SL55 AMG Key Fob

If your SL55 AMG keyless entry remote isn't working well, the cell battery more likely needs to be changed. It's not difficult to change the battery in your remote key fob with our guide. All tools, that you need is outlined in this article.

What kind of battery keyless entry remote require

Before starting open key fob check all that you need: 2 CR2025 batteries and flat head screwdriver.
  • flat head screwdriver
  • 2xCR2025 batteries

Step by step guide

A small coin battery installed in the your key fob. Move the key out of the way if it is in the keyless entry remote.

Carefully try to open your key fob with pry tools. Remove CR2025 batteries with flat head screwdriver.

Change old batteries with fresh one CR2025. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check position on battery, by "+" mark.

After the new batteries installed, check key fob by pressing buttons. If all functions works, assemble your keyless entry fob's body in reverse order.

At this point squeeze keyless entry fob's back cover together. Line your shell pieces together and assemble it in place by hands from top to bottom. Inspect your key fob body for gaps. If it is not tightly closed try to repeat last step.

How to replace the battery video guide

SOLVED - Mercedes Benz Keyfob Battery Replacement | Smart Key Fob Dead Batteries

Still not working? Buy new one

FAQ

Remote key fob of Mercedes-Benz SL55 AMG use 2xCR2025 batteries. Price for CR2025 batteries are under $4-6 depending on the brand, type and size packaging you buy. Take your old battery to the store, to find a proper replacement.

Keyless entry remote in most of cases reprogramming not needed after battery replace. If your keyless entry remote not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Changing your keyless entry remote battery is simple to do in 2003 Mercedes-Benz SL55 AMG. Most of car manufacturers think of the clients and make a special hole for remote key fob disassembly.

The cost to replace the battery in fob is in range $50-600 depending on the car and the service pricing.

You should replace batteries inside keyless entry remote of Mercedes-Benz SL55 AMG at least every three or four years. lifespan of battery vary on their amount of use, quality and operating conditions. Famous brands cells normally will last longer.

If your auto signal strength reduced, has low key battery indicator on dashboard, need multiple clicks to unlock or lock doors or fob's battery more than 4 years old, in most cases battery change inside keyless entry remote required. Currently installed battery is dead with a high probability, but if it's not help, key replace or repair required.
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Fob Compatibility:

  1. FCC ID: IYZ 3312
  2. Models: 2003-2006 Mercedes-Benz SL55 AMG