When your Mercedes-Benz key fob’s battery begins to die, it’s possible you’ll discover that the buttons do not reply in addition to they used to, or the vary for locking and unlocking the automobile decreases. Changing the battery in your key fob is a fast and straightforward course of that you are able to do your self, saving you a visit to the dealership. On this article, we’ll present step-by-step directions on exchange the Mercedes key fob battery, together with useful suggestions and troubleshooting recommendation.
Step one is to find the battery compartment in your Mercedes key fob. Typically, the battery compartment is situated on the again or aspect of the fob. As soon as you’ve got situated the battery compartment, you will want to make use of a small screwdriver or coin to pry it open. Watch out to not injury the battery compartment or the important thing fob itself. As soon as you’ve got opened the battery compartment, you will see the outdated battery. Take away the outdated battery and insert the brand new battery into the compartment, ensuring that the optimistic (+) and damaging (-) terminals are going through the right manner.
After you’ve got inserted the brand new battery, shut the battery compartment and check the important thing fob to verify it is working correctly. If the important thing fob will not be working, verify to make it possible for the battery is inserted appropriately and that the battery terminals are clear. If the important thing fob continues to be not working, it’s possible you’ll want to interchange the battery once more or contact a professional mechanic or locksmith for help.
Required Instruments and Supplies
Changing the battery in a Mercedes key fob is a simple activity that may be accomplished with a couple of easy instruments and supplies. Here is an in depth breakdown of what you will want:
Instruments:
| Device | Goal | |
|---|---|---|
| Small flathead screwdriver | To open the important thing fob housing | |
| Phillips head screwdriver | To take away the battery cowl | |
| Anti-static wrist strap | To guard the important thing fob’s delicate electronics from electrostatic discharge |
| Materials | Goal |
|---|---|
| CR2025 battery | The alternative battery for the important thing fob |
Finding the Key Fob Battery
To exchange the battery in your Mercedes key fob, you will first have to find it. The battery is usually housed in a small compartment on the again or aspect of the fob. To open the compartment, it’s possible you’ll want to make use of a small screwdriver or a key. As soon as the compartment is open, it is best to see a small, spherical battery.
Figuring out the Appropriate Battery
There are a number of several types of batteries that can be utilized in Mercedes key fobs. The commonest kind is the CR2025 battery. Nevertheless, some fobs could use a CR2032 or CR2016 battery as an alternative. To find out which sort of battery your fob makes use of, seek the advice of your proprietor’s guide or search for the battery kind printed on the again of the fob.
The next desk gives an inventory of the battery varieties utilized in completely different Mercedes key fobs:
| Key Fob Mannequin | Battery Sort |
|---|---|
| A-Class (W176) | CR2025 |
| C-Class (W205) | CR2032 |
| E-Class (W213) | CR2025 |
| GLC-Class (X253) | CR2016 |
| GLE-Class (W166) | CR2025 |
Eradicating the Previous Battery
As soon as you’ve got established the kind of battery wanted, comply with these steps to interchange it:
1. Take away the important thing blade from the case by urgent the discharge button and pulling it out (for fashions with out a bodily key, this step will not be needed).
2. Find the small launch latch or button on the again of the important thing fob; it could be a small protrusion or a button with a Mercedes brand. Press or slide the discharge to open the case.
3. Fastidiously take away the outdated battery from the designated compartment inside the important thing fob. Pay attention to its orientation and place inside the compartment, as the brand new battery should be inserted in the identical manner to make sure correct performance.
Inserting the New Battery
To insert the brand new battery, you will want to start by opening the distant key’s case utilizing a small screwdriver or flathead software to pry it open. Inside, you will discover the battery. It is going to usually be held in place by a small clip or bracket. Use the software to softly take away the outdated battery and exchange it with the brand new one, ensuring to put it within the right orientation.
Examine Battery Orientation
Earlier than inserting the brand new battery, double-check its orientation to make sure it aligns appropriately with the contacts contained in the distant. The optimistic (+) finish of the battery ought to face outward, whereas the damaging (-) finish ought to face inward. Misalignment can stop the distant from functioning correctly.
Safe the Battery
As soon as the brand new battery is in place, use the clip or bracket to safe it. Guarantee it is held firmly to forestall rattling or dislodging, which might result in intermittent functioning or full failure of the distant.
Check the New Battery
After inserting the brand new battery, reassemble the distant and check its performance. Press the varied buttons on the distant to make sure they work as supposed. If the distant nonetheless would not reply, it could be essential to reprogram it or search skilled help.
Reassembling the Key Fob
Step 1: Align the Key Blade
As soon as the battery is changed, fastidiously align the important thing blade into its designated slot inside the important thing fob housing. Be sure that it slots into place securely.
Step 2: Place the Again Cowl
Subsequent, fastidiously slide the again cowl over the important thing fob housing. Be sure that the quilt aligns appropriately and matches snugly.
Step 3: Safe the Again Cowl
Utilizing agency strain, press down on the again cowl to safe it in place. You must hear a delicate click on or snap because it locks into place.
Step 4: Check the Key Fob
Take the important thing fob to your car and check its performance. Press the buttons to make sure they reply as anticipated. If all buttons work appropriately, the important thing fob has been efficiently reassembled.
Step 5: Extra Ideas for Reassembling
- Examine for correct alignment: Be sure that all parts are correctly aligned earlier than urgent them collectively. Misalignment can result in injury or malfunction.
- Use even strain: Apply agency, even strain when securing the again cowl to forestall bending or cracking it.
- Deal with with care: Deal with the important thing fob with care to keep away from damaging its delicate parts.
- Discuss with the consumer guide: In the event you encounter any difficulties throughout reassembly, seek the advice of the consumer guide for particular directions and precautions.
Find the Key Fob Battery
The battery is usually situated inside the important thing fob, beneath a small cowl. Use a small screwdriver or your fingernail to pry open the quilt and expose the battery.
Take away the Previous Battery
Use your fingers or tweezers to fastidiously take away the outdated battery from its compartment. Keep away from touching the steel terminals on the battery to forestall quick circuits.
Insert the New Battery
Insert the brand new battery into the compartment, making certain that the optimistic (+) aspect of the battery faces up. Press down on the battery to safe it in place.
Figuring out the Appropriate Battery Sort
Completely different Mercedes-Benz fashions and key fobs require completely different battery varieties. Discuss with the proprietor’s guide or seek the advice of with a Mercedes-Benz service technician to find out the right battery kind to your particular car and key fob.
Shut the Key Fob
Snap the quilt again onto the important thing fob, making certain that it’s correctly aligned and safe. Most covers have an audible click on when securely closed.
Pairing the Key Fob (if relevant)
Methodology 1: Automated Pairing
For some Mercedes fashions, the important thing fob could robotically pair with the car after the battery has been changed. If this happens, no additional steps are needed.
Methodology 2: Handbook Pairing
If computerized pairing doesn’t happen, it’s possible you’ll have to manually pair the important thing fob with the car. The particular pairing process varies relying on the car mannequin and 12 months. Discuss with your proprietor’s guide or seek the advice of with a Mercedes-Benz service technician for detailed directions on guide pairing.
| Battery Sort | Mercedes Mannequin | Key Fob Sort |
|---|---|---|
| CR2025 | C-Class (2015-2021) | 3-button |
| CR2032 | E-Class (2017-2023) | 5-button |
| CR2450 | S-Class (2018-2025) | Good Key |
Take away the Key from the Fob
To realize entry to the battery compartment, the bodily key must be faraway from the fob. Discuss with your car’s guide for particular directions on detach the important thing, because the mechanism could fluctuate relying on the Mercedes mannequin.
Find the Battery Compartment
As soon as the secret’s eliminated, establish the battery compartment on the again or backside of the fob. It is usually secured by a small screw or a snap-on cowl.
Open the Battery Compartment
Utilizing a small screwdriver or a pointy object, gently pry open the battery compartment. Take care to not injury the parts inside.
Change the Battery
Take away the outdated battery and exchange it with a brand new one of many identical kind (usually a CR2025 or CR2032). Make sure the optimistic (+) aspect of the battery faces up.
Shut the Battery Compartment
Safe the battery compartment by tightening the screw or snapping the quilt again into place.
Check the Fob
Insert the important thing again into the fob and press any button to check its performance. If the fob is working appropriately, the LED indicator ought to gentle up or the automobile ought to reply to the instructions.
Troubleshooting Widespread Points
The Fob Does not Work After Changing the Battery
1. Incorrect Battery Sort: Confirm that you’ve got put in the right battery kind (CR2025 or CR2032).
2. Battery Not Correctly Put in: Make sure the battery is inserted appropriately with the optimistic (+) aspect going through up.
3. Defective Battery: Change the battery with a brand new one, because the outdated battery could also be faulty.
4. Soiled Contacts: Clear the steel contacts on the battery and the fob utilizing a cotton swab and rubbing alcohol.
5. Broken Fob Circuit Board: If the fob has been subjected to moisture or bodily injury, the circuit board could should be changed.
6. Transmitter Malfunction: The fob’s transmitter could have failed, requiring a go to to the dealership or a professional mechanic.
7. Interference from Different Gadgets: Transfer away from any potential sources of electromagnetic interference, akin to different key fobs or digital gadgets, and take a look at testing the fob once more.
Security Precautions
Earlier than making an attempt to interchange your Mercedes key fob battery, it is essential to stick to the next security precautions:
1. Park in a Secure Location
Guarantee your Mercedes is parked safely in a stage and safe space to forestall accidents.
2. Flip Off Ignition
Utterly flip off the ignition and take away the important thing from the ignition change.
3. Collect Instruments
Gather the required instruments: a small screwdriver (Phillips or flathead), a brand new CR2025 or CR2032 battery, and a delicate fabric.
4. Disconnect Battery
If relevant, disconnect the damaging terminal of the car’s battery utilizing the suitable wrench or software.
5. Put on Gloves
Think about carrying gloves to keep away from potential publicity to battery acid.
6. Keep away from Contact with Battery
Deal with the battery fastidiously and keep away from direct contact with its terminals.
7. Deal with Key Fob with Care
Deal with the important thing fob with care to forestall injury or malfunction.
8. Electrostatic Discharge (ESD) Precautions
To mitigate the danger of electrostatic discharge (ESD) that would injury digital parts, take the next steps:
- Discharge any static electrical energy by touching a grounded steel object earlier than dealing with the battery or key fob.
- Deal with parts solely by their edges or designated grip areas.
- Keep away from touching uncovered contacts or circuit boards.
- Use an anti-static wrist strap if obtainable.
- Work in a low-humidity surroundings to cut back the danger of ESD.
- Retailer digital parts in anti-static baggage when not in use.
- If dealing with delicate parts akin to circuit boards, think about using an ESD mat or grounded work floor.
- Observe any extra ESD precautions beneficial by the car producer or battery provider.
Battery Sort and Availability
Mercedes-Benz key fobs use CR2025 or CR2032 coin cell batteries. These batteries are generally obtainable at {hardware} shops, auto components shops, and on-line retailers.
Battery Life
The battery lifetime of a Mercedes-Benz key fob usually ranges from two to 5 years, relying on utilization. Elements that may have an effect on battery life embody the frequency of use, climate circumstances, and the situation of the fob.
Substitute Prices
The associated fee to interchange the battery in a Mercedes-Benz key fob varies relying on the kind of battery used and the situation the place the alternative is carried out. Anticipate to pay between $5 and $30 for the battery and labor.
DIY Substitute Directions
Supplies You may Want:
- CR2025 or CR2032 coin cell battery
- Small flathead screwdriver
Step-by-Step Directions:
- Find the battery compartment on the again of the important thing fob.
- Use a small flathead screwdriver to softly pry open the battery compartment.
- Take away the outdated battery and insert the brand new one with the optimistic (+) aspect going through up.
- Shut the battery compartment and safe it with the screwdriver.
- Check the important thing fob to make sure it is working appropriately.
Seller Substitute
In the event you’re not snug changing the battery your self, you possibly can have it accomplished at a Mercedes-Benz dealership. The dealership will usually cost a better charge for this service than in the event you do it your self.
Prices and Availability
| Battery Sort | Value | Availability |
|---|---|---|
| CR2025 | $5-$10 | Broadly obtainable |
| CR2032 | $5-$12 | Broadly obtainable |
Change the Battery in Your Mercedes Key Fob
Changing the battery in your Mercedes key fob is a straightforward activity that may be accomplished in a couple of minutes. Listed below are the steps you will have to comply with:
- Find the small launch button on the again of the important thing fob.
- Press the button and pull the important thing fob aside.
- Take away the outdated battery from the important thing fob.
- Insert the brand new battery into the important thing fob, ensuring that the optimistic and damaging terminals are aligned appropriately.
- Snap the important thing fob again collectively.
Ideas for Extending Battery Life
Listed below are a couple of suggestions that can assist you lengthen the battery lifetime of your Mercedes key fob:
- Keep away from exposing the important thing fob to excessive temperatures.
- Preserve the important thing fob dry.
- Don’t press the buttons on the important thing fob unnecessarily.
- Take away the battery from the important thing fob if you’ll not be utilizing it for an prolonged time period.
- Use a lithium-ion battery in your key fob.
- Ensure that the important thing fob is clear and freed from particles.
- Don’t drop the important thing fob.
- Don’t try to restore the important thing fob your self.
- If in case you have any questions on exchange the battery in your Mercedes key fob, seek the advice of your Mercedes-Benz seller.
- In case you are experiencing any issues together with your Mercedes key fob, seek the advice of your Mercedes-Benz seller.
Really useful Battery Sorts
| Battery Sort | Voltage | Capability |
|---|---|---|
| CR2025 | 3V | 160mAh |
| CR2032 | 3V | 240mAh |
How one can Change Mercedes Key Fob Battery
Changing the battery in your Mercedes key fob is a comparatively easy activity that may be accomplished in a couple of minutes. Observe these steps to interchange the battery:
- Find the small screw on the again of the important thing fob and take away it utilizing a small screwdriver.
- Gently pry open the important thing fob utilizing a skinny object, akin to a flathead screwdriver or a butter knife.
- Take away the outdated battery from the important thing fob and insert the brand new battery in the identical orientation because the outdated battery.
- Snap the important thing fob again collectively and exchange the screw.
- Check the important thing fob to verify it’s working correctly.
Folks Additionally Ask About How one can Change Mercedes Key Fob Battery
What kind of battery does a Mercedes key fob use?
Mercedes key fobs use a CR2025 battery.
How typically ought to I exchange the battery in my Mercedes key fob?
The battery in your Mercedes key fob must be changed each 2-3 years, or sooner in the event you discover that the important thing fob will not be working correctly.
The place can I purchase a alternative battery for my Mercedes key fob?
Substitute batteries for Mercedes key fobs could be bought at most {hardware} shops, electronics shops, and auto components shops.
