How to Replace the Battery in a 2006 Mercedes-Benz E320 Key Fob

How to Replace the Battery in a 2006 Mercedes-Benz E320 Key Fob

If your auto key is not open doors correct, the cell battery probably needs to be replaced. Below, we described how to disassembly your car key fob and replace your Mercedes-Benz key battery step by step.

What size battery does 2006 Mercedes-Benz E320 key fob required

Replacing batteries in keyless entry remote require flat head screwdriver and 2 CR2025 batteries. Prepare these materials and tools before opening and make sure to match the size of your fob’s batteries.
  • flat head screwdriver
  • 2xCR2025 batteries

Simple steps to change the battery in your car's remote key fob

Inside of your remote key fob installed tiny coin cell battery. Move the key out of the way if it is in the remote key fob.

Accurately try to open your remote key fob with hands or flat head screwdriver. Remove 2xCR2025 batteries with flat head screwdriver.

Get new batteries and install it in fob’s case. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.

After the new batteries installed, verify remote key fob by pressing buttons. If everything is functioning, assemble your keyless entry fob's shell in reverse order.

The last thing to do is put your cover back on fob. Carefully try to put the two halves together by hands from top to bottom. Inspect your key fob shell for gaps. If it is not tightly closed try to repeat last step.

How to replace the battery video instruction

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

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Mercedes-Benz E320 require 2xCR2025 batteries. Most CR2025 batteries are under $6 depending on the type, brand and size packaging you buy. You can take old battery to the store, with you to find a proper replacement.

Remote key fob in most of cases reprogramming not needed after battery replace. If your remote key fob not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Replacing your remote key fob battery is simple to do in 2006 Mercedes-Benz E320. Most of car manufacturers think of the customers and make a special hole for remote key fob open.

The price to replace the battery inside key fob can run anywhere from $30 to as high as $500 depending on the make and the service pricing.

You should replace batteries inside remote key fob of Mercedes-Benz E320 at least every three or four years. The term of battery differ on their amount of use, operating conditions and quality.

These symptoms will warn you that it's perhaps time to replace battery in your Mercedes-Benz E320: signal strength reduced, you didn't change battery more than 4 years, key fob buttons not working and low key battery indicator on dashboard.
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Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: IYZ 3312
  2. Models: 2000-2006 Mercedes-Benz E320