Mercedes Key Fob Battery Replace

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How To Replace Batteries On Any Key Fob Remote For Mercedes Benz

Mercedes Key Fob Battery Replacement EASY DIY – How To (1995-2018)

How to change the battery on the Mercedes Benz Smart Key Fob. How do you know you need a new battery? The remote lock or unlock range is poor. Or even worse, door lock/ unclock is not even working. These videos will show how to change the battery on different Mercedes-Benz Key Fob Remotes. There are several Mercedes Smart Key remotes so make sure to look at the correct video.

We strongly recommend using a Lithium battery like these ones, as they last much longer.

First you need to identify which key you have. There are several models. The current Smart key fob is the chrome key with a triangle panic button.

If your buttons are worn out you may want to consider adding a silicone case to avoid further damage to your key. You can get a cover case for less than $10, see here.

I Changed The Mercedes Key Fob Battery But It Still Wont Work

If youve changed the battery for a fresh one but are still experiencing problems with the key fob, then you should contact the dealership and test the key fob for a technical fault. Theres a chance that the key fob has an internal component not working, which is stopping the signal from being sent out properly.

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How To Change The Battery On The Mercedes

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  • Remove the metal key from the keyfob. Slide the release at the end of the key to slide out the metal key.
  • Insert the metal key into the exposed slot to pry out the back cover of the key.
  • Use a small flathead screwdriver to pry out the battery.
  • Install the new battery in the key. The positive sign needs to be facing out.
  • Press the back cover and metal key in the key.
  • How To Change A Mercedes Key Battery

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    This article was co-authored by wikiHow Staff. Our trained team of editors and researchers validate articles for accuracy and comprehensiveness. wikiHow’s Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards.There are 11 references cited in this article, which can be found at the bottom of the page. This article has been viewed 220,652 times.Learn more…

    A Mercedes key with dead batteries is no laughing matter. Until you replace them, you may not be able to remotely unlock your car or trigger the car’s panic mode in case of emergency. Although all Mercedes keys require the same type of battery , how many you will need or the method you use to change the battery will depend on which model you have. Compare your key to other models before you attempt changing its batteries to avoid damaging your keys or accidentally following the wrong instructions.

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    How Do You Change Battery In Mercedes Fob

    Smart Key: For the Smart Key, pull the latch at the end of the key holder, stick your key horizontally into the open slot, and lift the battery compartment out to replace the batteries.

    What kind of battery does a Mercedes key fob remote use?

    Or even worse, door lock/ unclock is not even working. These videos will show how to change the battery on different Mercedes-Benz Key Fob Remotes. There are several Mercedes Smart Key remotes so make sure to look at the correct video. We strongly recommend using a Lithium battery like these one s, as they last much longer.

    How do you change the battery on a Mercedes smart key?

    Changing Smart Keys Pull the latch at the end of the key holder down. Stick your key horizontally into the open slot. Lift the battery compartment up and out of the key holder bottom. Remove and replace your CR 2025 batteries.

    Which Battery Does Mercedes Key Fob Use

    The Mercedes key fob uses a CR2025 lithium battery that gives 3volts. The battery is a primary battery meaning it cannot be recharged.

    Key fobs for older Mercedes models came with a plastic casing and uses 2 CR2025 batteries. The modern key fobs are metallic or chrome and use a 1 CR2025 battery.

    Note: Some older versions of chrome key fobs had a circular panic button and used 2 CR2025 batteries. The newer chrome key fobs have triangular panic buttons.

    The battery is designed in such a way that it will last between 3 to 5years before a change is needed. On the shelf, the battery can still be in good condition after 10 years.

    The battery can work in varying environments from freezing winter conditions to the sweltering summer months.

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    Where Do I Buy Mercedes Replacement Key Fob

    If the Mercedes key fob battery replacement does not work, you may consider changing the remote as it maybe damaged beyond repair. This can be done easily by visiting the Mercedes dealership near you who will have stocks of new key fobs. At the dealership, they will cut the mechanical key and program the fob to work in your car.

    The second option is to head online to buy a new Mercedes replacement key fob from the retailers. It will be delivered in 1-2 days and you will visit the locksmith near you to have the key in the key fob cut. You can have the key fob programmed there or you can do it at home by following the guide below.

    To Change Mercedes Key Fob Battery

    The methodology of opening the key fob depends on whether you are using the smart key fob or the chrome key fob.

    Replacing the battery in the smart key fob.

    Step 1: Pull on the handle at the end of the key fob to remove the metallic key.

    Step 2: On the top side of the key fob where you have removed the key, there is a slot.

    Step 3: push the key you have withdrawn into this slot and turn it in any direction to open the key fob.

    Step 4: Replace the old batteries with the new ones and ensure the new batteries faces the same direction as the old batteries.

    Step 5: Replace the cover and press together to lock it. Return the key to the key fob

    Replacing the battery in chrome key fob

    Step 1: Pull on the handle of the key fob to release the metallic key.

    Step 2: Insert the key into the slot revealed after key removal. Turn the key to open the key fob

    Step 3: Replace the old battery with the new battery ensuring the battery faces the same direction as the old battery.

    Step 4: Replace the key fob cover and press together. A click sound will be heard to signify tight closing.

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    How Do You Tell Key Fob Battery Is About To Die

    The battery of the key fob does not cease just one day. It is a gradual process. The battery produces power by chemical reactions within the battery.

    As the chemical ingredients get exhausted with time, the reaction slows down releasing less and less power until when there are no more materials to react and the battery dies.

    As the battery gets weaker, the sighs it exhibits include:

    • It takes longer to start the engine
    • The locking distance becomes shorter and shorter.
    • The dashboard system displays a message on the charging system
    • The key fob works inconsistently

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    This key has been used in many models up to the model year 2000. It is also used in a few models after the year 2000, such as the SLK, ML, Sprinter, and G models.

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  • Press the round chrome button to open the metal blade.
  • Use your fingers to pry out the back cover of the keyfob.
  • Remove the battery and install the new one. Pay attention to the of the old battery. Install the new battery in the same orientation.
  • Press the back cover back on the keyfob.
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    Signs That You Need Mercedes Key Fob Battery Replacement

    Where some key fobs out there have LCD screens now that tell you when the battery is dying, other more basic ones do not have that luxury. Many Mercedes-Benz key fobs, while beautiful and elegant, are still typically more straightforward and analog in their buttons and construction.

    If you experience any of the following things, then its a sign that its time to replace the Mercedes key fob battery.

    • Signal strength is weaker, meaning that you are only able to open your car from much closer than usual. Normal range is 50 feet, if it doesnt work at 40-50 feet at least, then signal strength is weakened.
    • You have to press the button multiple times for it to register, send a signal and open/lock the doors.
    • It is working quite well in the morning but then in the afternoon not so well, and continues in this inconsistent manner.

    Mercedes Key Fob Battery Replacement

    The following simple step-by-step process is all you need to do to replace the battery in these Mercedes-Benz key fobs.

    Step 1: Push the small metal button on the back of the key fob and slide the back of the key fob off the casing.

    Tip: If you struggle to press the button and slide the back of the casing at the same time, then first press the button to release the valet key. Then, use the valet key in one hand to push the button down while you use your other thumb to slide the fob back away from the rest of the casing.

    Step 2: The next thing you have to do is release the battery. It is housed with the inner casing. On the left side of the inner casing, youll see a small tab. Use your fingernail or perhaps a small coin or some other flat object to release that tab.

    Step 3: Pull on the tab and the battery will come out inside its own case. Pop the battery out of the case and confirm that the replacement battery you have is the right one. It is normally a CR 2032 3-volt battery. Its a silver-colored disc.

    Step 4: Put the new battery in the same place and position in which you found the first one. If you noticed, the side of the battery with the writing should be facing down, and the blank side of the battery facing up.

    Step 5: Battery now in place, slide the battery back into the key fob slot, making sure to push it all the way back in.

    Step 6: Replace the back of the key fob, along with the valet key .

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    How Long Does The Mercedes Key Fob Battery Last

    How To Replace A Mercedes Benz S Class Key Fob Battery

    The good news is that you will rarely have to worry about getting a battery and changing it, because those Panasonic batteries last on average between 3 and 4 years. As you can see, the procedure for battery replacement is very simple regardless of whatever model year Mercedes-Benz you are driving.

    The 3-volt Panasonic batteries can be purchased both online and at your local Mercedes-Benz dealerships. If youre struggling with the process in any way, those guys at the dealership will undoubtedly offer their assistance.

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    How To Change A Battery In A Mercedes Key Fob

    Battery Dead? Here we run through how to change a battery in your Mercedes key fob.

    1 year, 6 months ago

    A Mercedes-Benz key fob is quite the status symbol. It opens some of the most exclusive and luxurious car doors in the world and is quite a statement of your own success and affluence. Unfortunately, the key fob is still subject to the same laws of physics as everything else, and the batteries run out.

    As things stand, Mercedes-Benz are yet to invent a special kind of high-end luxury battery that runs 100 times longer than any other pretty typical key fob battery. If you want to replace the Mercedes key fob battery, then youll need to know the steps.

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  • Slide the release at the back of the key to remove the metal key.
  • Insert the metal key in the exposed gap to release the key insert .
  • As you keep the release pressed, slide out the inner part of the key.
  • Remove the batteries. Note the orientation of the positive side of the battery.
  • Install the new battery. Slide the inner part back in the key. Slide the metal key back into the keyfob.
  • Take The Guesswork Out Of Battery Replacement

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    How Long Does A Honda Key Fob Last On Low Battery

    The battery in Honda Smart keys is a CR2032. Buy them in a two pack! Once a battery is inside the key fob, it is on and running, even if its sitting in a drawer. The average life span is 2-2.5 years of on time.even if the buttons are never pressed.

    How do I reset my Honda key fob after replacing the battery?

    How To Reprogram Your Honda Key Fob

  • Gather all Honda key fobs for your car.
  • Get in your car lock all the doors and windows.
  • Turn the key to the ON position but not to ignition.
  • Within 5 seconds, press the lock button on your key fob for just a second.
  • Move the key to the OFF position.
  • How do you know if your key fob needs a new battery?

    Symptoms Of A Dying Key Fob Battery:

  • Worsening Signal Strength. Your key fob used to unlock your truck across the Target parking lot.
  • Over-Clicking. A working key fob should be able to unlock doors with a single push of the button.
  • Inconsistent Results.
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