When your Mercedes-Benz key fob’s battery begins to die, chances are 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 find out how to substitute the Mercedes key fob battery, together with useful ideas and troubleshooting recommendation.
Step one is to find the battery compartment in your Mercedes key fob. Most often, the battery compartment is positioned on the again or facet of the fob. As soon as you have positioned the battery compartment, you may 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 As soon as you have opened the battery compartment, you may see the outdated battery. Take away the outdated battery and insert the brand new battery into the compartment, ensuring that the constructive (+) and unfavorable (-) terminals are going through the proper method.
After you have inserted the brand new battery, shut the battery compartment and check the important thing fob to ensure it is working correctly. If the important thing fob shouldn’t be working, examine to guarantee that the battery is inserted appropriately and that the battery terminals are clear. If the important thing fob continues to be not working, chances are you’ll want to switch the battery once more or contact a certified mechanic or locksmith for help.
Required Instruments and Supplies
Changing the battery in a Mercedes key fob is an easy job that may be accomplished with a number of easy instruments and supplies. Here is an in depth breakdown of what you may 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 interchange the battery in your Mercedes key fob, you may first have to find it. The battery is usually housed in a small compartment on the again or facet of the fob. To open the compartment, chances are you’ll want to make use of a small screwdriver or a key. As soon as the compartment is open, it’s best to see a small, spherical battery.
Figuring out the Right Battery
There are a number of several types of batteries that can be utilized in Mercedes key fobs. The commonest sort is the CR2025 battery. Nonetheless, some fobs might use a CR2032 or CR2016 battery as a substitute. To find out which sort 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 offers a listing of the battery varieties utilized in totally 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 have 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 out a bodily key, this step shouldn’t be essential).
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 throughout the compartment, as the brand new battery have to be inserted in the identical method to make sure correct performance.
Inserting the New Battery
To insert the brand new battery, you may want to start by opening the distant key’s case utilizing a small screwdriver or flathead device to pry it open. Inside, you may discover the battery. It’s going to usually be held in place by a small clip or bracket. Use the device to softly take away the outdated battery and substitute it with the brand new one, ensuring to position it within the right orientation.
Test 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 constructive (+) finish of the battery ought to face outward, whereas the unfavorable (-) 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 may result in intermittent functioning or full failure of the distant.
Take a look at the New Battery
After inserting the brand new battery, reassemble the distant and check 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, rigorously 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, rigorously slide the again cowl over the important thing fob housing. Be sure that the duvet aligns appropriately and suits 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: Take a look at the Key Fob
Take the important thing fob to your automobile 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 Suggestions for Reassembling
- Test for correct alignment: Be sure that all elements 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 elements.
- Seek advice from the consumer handbook: If you happen to encounter any difficulties throughout reassembly, seek the advice of the consumer 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 Previous Battery
Use your fingers or tweezers to rigorously 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 (+) facet of the battery faces up. Press down on the battery to safe it in place.
Figuring out the Right Battery Sort
Totally different Mercedes-Benz fashions and key fobs require totally 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 automobile 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 robotically pair with the automobile after the battery has been changed. If this happens, no additional steps are essential.
Technique 2: Guide Pairing
If automated pairing doesn’t happen, chances are you’ll have to manually pair the important thing fob with the automobile. The particular pairing process varies relying on the automobile 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 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) | 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 automobile’s handbook for particular directions on find out how to detach the important thing, because the mechanism might differ relying on the Mercedes mannequin.
Find the Battery Compartment
As soon as the secret’s eliminated, determine 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 elements inside.
Exchange the Battery
Take away the outdated battery and substitute it with a brand new one of many identical sort (usually a CR2025 or CR2032). Make sure the constructive (+) facet of the battery faces up.
Shut the Battery Compartment
Safe the battery compartment by tightening the screw or snapping the duvet again into place.
Take a look at 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 Would not Work After Changing the Battery
1. Incorrect Battery Sort: Confirm that you’ve put in the proper battery sort (CR2025 or CR2032).
2. Battery Not Correctly Put in: Make sure the battery is inserted appropriately with the constructive (+) facet going through up.
3. Defective Battery: Exchange 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 might have to be changed.
6. Transmitter Malfunction: The fob’s transmitter might have failed, requiring a go to to the dealership or a certified 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 trying to switch your Mercedes key fob battery, it is essential to stick to the next security precautions:
1. Park in a Protected 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
Accumulate the mandatory instruments: a small screwdriver (Phillips or flathead), a brand new CR2025 or CR2032 battery, and a delicate material.
4. Disconnect Battery
If relevant, disconnect the unfavorable terminal of the automobile’s battery utilizing the suitable wrench or device.
5. Put on Gloves
Contemplate carrying gloves to keep away from potential publicity to battery acid.
6. Keep away from Contact with Battery
Deal with the battery rigorously 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 elements, 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 elements 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 cut back the danger of ESD.
- Retailer digital elements in anti-static baggage when not in use.
- If dealing with delicate elements akin to circuit boards, think about using an ESD mat or grounded work floor.
- Comply with any further ESD precautions really helpful by the automobile 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 elements 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. Components 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 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 constructive (+) facet going through up.
- Shut the battery compartment and safe it with the screwdriver.
- Take a look at the important thing fob to make sure it is working appropriately.
Supplier Substitute
If you happen to’re not snug changing the battery your self, you’ll be able to have it finished at a Mercedes-Benz dealership. The dealership will usually cost a better charge for this service than if you happen to do it your self.
Prices and Availability
| Battery Sort | Price | Availability |
|---|---|---|
| CR2025 | $5-$10 | Extensively obtainable |
| CR2032 | $5-$12 | Extensively obtainable |
Exchange the Battery in Your Mercedes Key Fob
Changing the battery in your Mercedes key fob is an easy job that may be finished in a couple of minutes. Listed below are the steps you will want 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 unfavorable terminals are aligned appropriately.
- Snap the important thing fob again collectively.
Suggestions for Extending Battery Life
Listed below are a number of ideas that will help you lengthen 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 period.
- 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.
- You probably have any questions on find out how to substitute the battery in your Mercedes key fob, seek the advice of your Mercedes-Benz vendor.
- In case you are experiencing any issues along with your Mercedes key fob, seek the advice of your Mercedes-Benz vendor.
Beneficial Battery Sorts
| Battery Sort | Voltage | Capability |
|---|---|---|
| CR2025 | 3V | 160mAh |
| CR2032 | 3V | 240mAh |
The way to Exchange Mercedes Key Fob Battery
Changing the battery in your Mercedes key fob is a comparatively easy job 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, 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 substitute the screw.
- Take a look at the important thing fob to ensure it’s working correctly.
Folks Additionally Ask About The way to Exchange 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 needs to be changed each 2-3 years, or sooner if you happen to discover that the important thing fob shouldn’t be working correctly.
The place can I purchase a alternative battery for my Mercedes key fob?
Substitute batteries for Mercedes key fobs might be bought at most {hardware} shops, electronics shops, and auto elements shops.
