10 Easy Steps to Replace the Key Battery in a Mercedes

10 Easy Steps to Replace the Key Battery in a Mercedes

Changing the important thing battery in your Mercedes-Benz is a comparatively easy process that may be accomplished in a couple of minutes. Nonetheless, it is very important comply with the right steps to keep away from damaging the important thing or the battery. On this article, we are going to offer you step-by-step directions on change the important thing battery in your Mercedes-Benz. We may even present some recommendations on prolong the lifetime of your key battery.

Step one is to determine the kind of key battery that you just want. Mercedes-Benz keys use both CR2025 or CR2032 batteries. You’ll find the kind of battery that you just want by wanting in the back of the important thing. Upon getting recognized the kind of battery that you just want, you should purchase a brand new battery at your native ironmongery shop or on-line. When selecting a brand new battery, be sure you choose one that’s of excellent high quality. An inexpensive battery could not final so long as a costlier battery.

Upon getting a brand new battery, you possibly can start the method of changing the previous battery. Step one is to take away the important thing blade from the important thing physique. On most Mercedes-Benz keys, the important thing blade might be eliminated by urgent a small button on the again of the important thing. As soon as the important thing blade has been eliminated, you will want to find the battery compartment. The battery compartment is normally situated on the again of the important thing physique. To open the battery compartment, you will want to make use of a small screwdriver or a coin. As soon as the battery compartment is open, you possibly can take away the previous battery and insert the brand new battery. Make sure you insert the brand new battery with the constructive aspect dealing with up. As soon as the brand new battery has been inserted, you possibly can shut the battery compartment and reattach the important thing blade. Your key ought to now be working correctly.

Programming Points and Options

Attainable Programming Points

  • Key not acknowledged by the automobile
  • Buttons not functioning accurately
  • Immobilizer system not deactivating

Options for Programming Points

In the event you encounter any programming points after altering the important thing battery, listed below are some options you possibly can attempt:

  1. Test if the battery is correctly put in. Take away the battery and re-insert it, making certain it’s seated accurately.
  2. Re-synchronize the important thing. Get into the automobile, insert the important thing, and switch the ignition to the “On” place for 10 seconds. Then, flip the ignition off and take away the important thing. Repeat this course of 3-4 instances, then attempt utilizing the important thing to start out the automobile.
  3. Use a spare key. If obtainable, attempt utilizing a spare key to see if it really works. If the spare key works, it’s possible you’ll have to have the unique key re-programmed.
  4. Contact the dealership. If all else fails, you possibly can contact your Mercedes dealership for help. They’ve the mandatory instruments and experience to diagnose and repair any programming points.
Programming Subject Attainable Options
Key not acknowledged Test battery set up, re-synchronize key, contact dealership
Buttons not functioning Test battery set up, attempt spare key, contact dealership
Immobilizer system not deactivating Re-synchronize key, contact dealership

How To Change The Key Battery Mercedes

The important thing battery for a Mercedes-Benz automobile is situated inside the important thing fob. To alter the battery, you will want a small Phillips head screwdriver.

1. **Find the small screw on the again of the important thing fob.** Use the screwdriver to take away the screw.

  1. Gently pry open the important thing fob. Watch out to not injury the important thing fob or the battery.

  2. Take away the previous battery. Observe the orientation of the battery as a way to insert the brand new battery accurately.

  3. Insert the brand new battery. Be sure that the constructive (+) aspect of the battery is dealing with up.

  4. Shut the important thing fob. Align the 2 halves of the important thing fob and press them collectively till they snap shut.

  5. Exchange the screw. Use the screwdriver to tighten the screw.

Individuals Additionally Ask About How To Change The Key Battery Mercedes

How typically ought to I alter the important thing battery in my Mercedes?

The important thing battery in a Mercedes-Benz automobile usually lasts for about 3-5 years. Nonetheless, this may differ relying on how typically you utilize the important thing and the kind of battery that’s used.

What kind of battery do I would like for my Mercedes key fob?

The kind of battery that you just want in your Mercedes key fob will depend upon the yr and mannequin of your automobile. You may examine your proprietor’s guide to seek out out the right kind of battery in your key fob.

Can I alter the important thing battery myself?

Sure, you possibly can change the important thing battery your self. Nonetheless, in case you are not snug doing so, you possibly can take your automobile to a Mercedes-Benz dealership or an automotive locksmith to have the battery modified.