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 the right way to substitute 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. Usually, the battery compartment is positioned on the again or aspect of the fob. As soon as you’ve got positioned the battery compartment, you will want to make use of a small screwdriver or coin to pry it open. Watch out to not harm 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 As soon as you’ve got opened the battery compartment, you will see the outdated battery. Take away the outdated battery and insert the brand new battery into the compartment, ensuring that the constructive (+) and adverse (-) terminals are going through the proper method.
After you’ve got inserted the brand new battery, shut the battery compartment and take a look at the important thing fob to ensure it is working correctly. If the important thing fob isn’t working, test to ensure that the battery is inserted accurately and that the battery terminals are clear. If the important thing fob continues to be not working, it’s possible you’ll want to switch 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 just a few easy instruments and supplies. This is an in depth breakdown of what you will want:
Instruments:
| Instrument | 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 substitute battery for the important thing fob |
Finding the Key Fob Battery
To exchange the battery in your Mercedes key fob, you will first must 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, you need to see a small, spherical battery.
Figuring out the Right Battery
There are a number of various kinds of batteries that can be utilized in Mercedes key fobs. The most typical sort is the CR2025 battery. Nevertheless, some fobs might use a CR2032 or CR2016 battery as an alternative. To find out which kind of battery your fob makes use of, seek the advice of your proprietor’s handbook or search for the battery sort printed on the again of the fob.
The next desk supplies a listing of the battery varieties utilized in completely different Mercedes key fobs:
| Key Fob Mannequin | Battery Kind |
|---|---|
| A-Class (W176) | CR2025 |
| C-Class (W205) | CR2032 |
| E-Class (W213) | CR2025 |
| GLC-Class (X253) | CR2016 |
| GLE-Class (W166) | CR2025 |
Eradicating the Outdated Battery
As soon as you’ve got established the kind of battery wanted, observe these steps to switch it:
1. Take away the important thing blade from the case by urgent the discharge button and pulling it out (for fashions with no bodily key, this step isn’t obligatory).
2. Find the small launch latch or button on the again of the important thing fob; it might be a small protrusion or a button with a Mercedes emblem. Press or slide the discharge to open the case.
3. Rigorously take away the outdated battery from the designated compartment inside the important thing fob. Be aware of its orientation and place inside the compartment, as the brand new battery should be inserted in the identical method 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 instrument to pry it open. Inside, you will discover the battery. It’ll usually be held in place by a small clip or bracket. Use the instrument to softly take away the outdated battery and substitute it with the brand new one, ensuring to position it within the right orientation.
Examine Battery Orientation
Earlier than inserting the brand new battery, double-check its orientation to make sure it aligns accurately with the contacts contained in the distant. The constructive (+) finish of the battery ought to face outward, whereas the adverse (-) finish ought to face inward. Misalignment can forestall 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 take a look at its performance. Press the assorted buttons on the distant to make sure they work as supposed. If the distant nonetheless would not reply, it might 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 duvet aligns accurately and suits snugly.
Step 3: Safe the Again Cowl
Utilizing agency strain, press down on the again cowl to safe it in place. It is best to hear a mushy click on or snap because it locks into place.
Step 4: Check the Key Fob
Take the important thing fob to your car and take a look at its performance. Press the buttons to make sure they reply as anticipated. If all buttons work accurately, 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 harm 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.
- Seek advice from the person handbook: In case you encounter any difficulties throughout reassembly, seek the advice of the person handbook for particular directions and precautions.
Find the Key Fob Battery
The battery is usually positioned inside the important thing fob, beneath a small cowl. Use a small screwdriver or your fingernail to pry open the duvet and expose the battery.
Take away the Outdated 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 brief circuits.
Insert the New Battery
Insert the brand new battery into the compartment, guaranteeing that the constructive (+) aspect of the battery faces up. Press down on the battery to safe it in place.
Figuring out the Right Battery Kind
Completely different Mercedes-Benz fashions and key fobs require completely different battery varieties. Seek advice from the proprietor’s handbook or seek the advice of with a Mercedes-Benz service technician to find out the proper battery sort in your particular car and key fob.
Shut the Key Fob
Snap the duvet again onto the important thing fob, guaranteeing that it’s correctly aligned and safe. Most covers have an audible click on when securely closed.
Pairing the Key Fob (if relevant)
Technique 1: Computerized Pairing
For some Mercedes fashions, the important thing fob might routinely pair with the car after the battery has been changed. If this happens, no additional steps are obligatory.
Technique 2: Handbook Pairing
If computerized pairing doesn’t happen, it’s possible you’ll must manually pair the important thing fob with the car. The precise pairing process varies relying on the car mannequin and 12 months. Seek advice from your proprietor’s handbook or seek the advice of with a Mercedes-Benz service technician for detailed directions on handbook pairing.
| Battery Kind | Mercedes Mannequin | Key Fob Kind |
|---|---|---|
| CR2025 | C-Class (2015-2021) | 3-button |
| CR2032 | E-Class (2017-2023) | 5-button |
| CR2450 | S-Class (2018-2025) | Sensible Key |
Take away the Key from the Fob
To realize entry to the battery compartment, the bodily key must be faraway from the fob. Seek advice from your car’s handbook for particular directions on the right way to detach the important thing, because the mechanism might differ relying on the Mercedes mannequin.
Find the Battery Compartment
As soon as the secret is 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 harm the parts inside.
Change the Battery
Take away the outdated battery and substitute it with a brand new one of many similar sort (usually a CR2025 or CR2032). Make sure the constructive (+) aspect of the battery faces up.
Shut the Battery Compartment
Safe the battery compartment by tightening the screw or snapping the duvet 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 accurately, 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 Kind: Confirm that you’ve got put in the proper battery sort (CR2025 or CR2032).
2. Battery Not Correctly Put in: Make sure the battery is inserted accurately with the constructive (+) 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 harm, the circuit board might have to be changed.
6. Transmitter Malfunction: The fob’s transmitter might have failed, requiring a go to to the dealership or a professional mechanic.
7. Interference from Different Units: Transfer away from any potential sources of electromagnetic interference, corresponding 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 switch 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 swap.
3. Collect Instruments
Acquire the required instruments: a small screwdriver (Phillips or flathead), a brand new CR2025 or CR2032 battery, and a mushy material.
4. Disconnect Battery
If relevant, disconnect the adverse terminal of the car’s battery utilizing the suitable wrench or instrument.
5. Put on Gloves
Think about sporting 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 harm or malfunction.
8. Electrostatic Discharge (ESD) Precautions
To mitigate the danger of electrostatic discharge (ESD) that would harm 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 setting to scale back the danger of ESD.
- Retailer digital parts in anti-static baggage when not in use.
- If dealing with delicate parts corresponding to circuit boards, think about using an ESD mat or grounded work floor.
- Comply with any further ESD precautions beneficial by the car producer or battery provider.
Battery Kind 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 embrace the frequency of use, climate situations, and the situation of the fob.
Substitute Prices
The fee to switch the battery in a Mercedes-Benz key fob varies relying on the kind of battery used and the placement the place the substitute is carried out. Anticipate to pay between $5 and $30 for the battery and labor.
DIY Substitute Directions
Supplies You will 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 constructive (+) 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 accurately.
Vendor Substitute
In case you’re not comfy changing the battery your self, you may have it executed at a Mercedes-Benz dealership. The dealership will usually cost a better payment for this service than should you do it your self.
Prices and Availability
| Battery Kind | Price | Availability |
|---|---|---|
| CR2025 | $5-$10 | Extensively obtainable |
| CR2032 | $5-$12 | Extensively obtainable |
Change the Battery in Your Mercedes Key Fob
Changing the battery in your Mercedes key fob is an easy activity that may be executed in a couple of minutes. Listed below are the steps you will have to observe:
- 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 constructive and adverse terminals are aligned accurately.
- Snap the important thing fob again collectively.
Ideas for Extending Battery Life
Listed below are just a few suggestions that will help you prolong the battery lifetime of your Mercedes key fob:
- Keep away from exposing the important thing fob to excessive temperatures.
- Maintain 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 frame.
- Use a lithium-ion battery in your key fob.
- Be sure 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.
- When you have any questions on the right way to substitute the battery in your Mercedes key fob, seek the advice of your Mercedes-Benz supplier.
- If you’re experiencing any issues together with your Mercedes key fob, seek the advice of your Mercedes-Benz supplier.
Really useful Battery Sorts
| Battery Kind | Voltage | Capability |
|---|---|---|
| CR2025 | 3V | 160mAh |
| CR2032 | 3V | 240mAh |
The right way to 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. Comply with these steps to switch 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, corresponding 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 substitute the screw.
- Check the important thing fob to ensure it’s working correctly.
Individuals Additionally Ask About The right way to Change Mercedes Key Fob Battery
What sort of battery does a Mercedes key fob use?
Mercedes key fobs use a CR2025 battery.
How typically ought to I substitute the battery in my Mercedes key fob?
The battery in your Mercedes key fob ought to be changed each 2-3 years, or sooner should you discover that the important thing fob isn’t working correctly.
The place can I purchase a substitute battery for my Mercedes key fob?
Substitute batteries for Mercedes key fobs may be bought at most {hardware} shops, electronics shops, and auto components shops.
