5 Methods to Complete BMW Battery Registration
This guide offers detailed instructions and video tutorials on registering a BMW battery. Battery registration is crucial for ensuring that your vehicle’s onboard computer, the DME (Digital Motor Electronics), acknowledges the new battery and optimizes the charging system accordingly. This process is mandatory following the replacement of a BMW battery.
Battery registration optimizes the lifespan and performance of your new battery within your vehicle’s electrical system. Failing to register the battery could lead to issues like inaccurate warning messages on the iDrive interface or, in rare instances, prevent the car from starting. This article guides you through registering your BMW battery right after its installation.
We highly recommend using a replacement battery that aligns with the specifications of the existing battery in your vehicle. Make sure to match the Ah, CCA, and CA ratings. To register a new battery in a BMW, you’ll need a specialized BMW Scanner. Follow the steps outlined below to program your new battery correctly.
Most BMW models from 2002 onward are equipped with Intelligent Battery Sensors (IBS) and necessitate battery registration. Note that generic OBD-II scanners cannot register or program a new BMW battery. This limitation is a key reason retailers like AutoZone don’t offer battery replacement services for BMWs. However, changing the battery on a BMW is quite straightforward. For additional guidance, consult the video below on how to replace a BMW battery yourself.
Method 1: Register a BMW Battery with YOUCANIC Scanner – EASY
The steps outlined below enable you to reprogram and reset the BMW computer after a battery replacement. This guide is specifically designed for registering a BMW battery on models from 2002 or later, including the 1, 3, 5, 6, X1, X3, and X5 series, among others.
A battery with the same specifications as the old one must be registered. If you install a battery that differs from the one you’re replacing, coding will be necessary.
Replace the battery in your BMW. If you need help with this step, see our guide on how to replace a BMW battery. Find a new battery that matches the old battery. The ratings (CCA, CA, Ah) should be identical or as close to the original.
- Find the onboard diagnostic (OBD) port beneath the dashboard, close to your brake pedal. In BMW vehicles, this OBD-2 port typically has a small door you’ll need to open. There might also be a cover over the port that you should remove. Insert your chosen BMW scan tool into this port. Keep in mind, that standard OBD2 scanners won’t suffice for BMW-specific battery registration.
- Turn on the ignition by rotating the key to position II. If your vehicle has a Push Start button, press it twice without stepping on the brake pedal. Ensure all dashboard lights are illuminated. The engine must remain off; otherwise, you won’t be able to complete the BMW battery registration procedure.
- Next, select your BMW model, then select the Control Unit.
- Select the Power Supply module.
- Select Register a new BMW battery.
- Press OK, and the new battery is registered. The following section shows you how to use specific scanners to register the battery.
You will need a Multi-System Scanner that can register the battery, such as the YOUCANIC Full System Scanner that can register the battery and read every fault code on your BMW vehicle. These steps will enable users to successfully register a new battery with the same desired specs. These steps will not code a new battery with different specs.
Method 2: Register a New Battery for BMW using Rheingold (ISTA-D)
Let’s go over how to register and code a new battery for your BMW using the Rheingold (ISTA-D) software. The virtual machine is already equipped with this dealer-grade software and an ICOM emulator; all you’ll need is a K+DCAN cable.
- Turn the ignition to the “on” position and verify communication with INPA.
- Load Rheingold.
- Click on the “Identification” tab.
- Go to the “Read out” tab and click “start” to gather vehicle information.
- Verify your vehicle’s VIN and then navigate to “Vehicle management.”
- Go to Service function>Body>Voltage Supply>Battery>Register.
- Click “start search” and select “ABL register battery replacement.”
- Rheingold will guide you through your options, including registering a like-for-like battery or changing the battery capacity. You will also be prompted to perform coding using ISTA-P.
Method 3: Use Ediabas Toolset32, Part of the BMW tools Suite
- Launch Tool32.exe
- Navigate to: File > Load SGB > C:/EDIABAS/ECU/[choose the appropriate .prg file for your DME as per appendix A]
- Find “steuern_batterietausch_registri” in the list of jobs
- Go to the Jobs menu.
- Choose “Run Job” (in German, it’s “Job Einmal Ausfuhren [run job once]”)
- Ensure the operation reports “Okay.”
Method 4: Register BMW Battery with NCSEXPERT
- Launch NCSEXPERT.exe
- Choose File > Load profile > Select a profile that allows manipulation (you may need to create one, refer to online resources) > Click OK.
- Press F1 (VIN/ZCS/FA)
- Press F3 (CS/FA f. EC) > Select E89 (chassis family for E9x and E8x vehicles) > Click OK > Select CAS > Click OK
- Press F6 (Back)
- Press F1 (VIN/ZCS/FA)
- Press F2 (Enter FA) > Select E89 > Click OK
- A window labeled “Enter VIN” will appear > check that the VIN is correct > Click OK.
- A window labeled “Enter FA” will appear > locate VO for old battery (e.g. -B090) > highlight –B090 and press delete
- Enter the new battery type, –A080 (per Appendix B), in the “Attribute” box > Click Add > Click OK.
- Press F6 (Back)
- Press F4 (Process ECU) > Select CAS > Click OK
- Press F2 (Change Job) > Select FA Write > Click OK
- Press F3 (Execute Job)
- Verify that the write has been completed with “Job Ended.”
- Press F1 (Change ECU) > Select FRM/NFRM > Click OK
- Verify the lines: get coded, FRM, JOBNAME = FA_Write
- Press F3 (Execute Job)
- Verify that the write has been completed with “Job Ended.”
- Keep NCSEXPERT open
- Press F4 (Process ECU) > Select CAS > Click OK
- Press F2 (Change Job) > Select CODIERDATEN_LESEN (read ECU) > Click OK
- Press F3 (Execute Job)
- Verify “Job Ended”
- Keep NCSExper.exe open and go to the “work” folder where the ECU trace file was saved to ([X]:\NCSEXPER_64\WORK)
- Open the generated FSW_PSW.TRC file with Notepad
- Choose: File > Save as > FSW_PSW.MAN (ensure to choose “save as type” as “All files” to accept the “.MAN” extension; otherwise, it will just save as a text file .TXT, which will need to be renamed to .MAN)
- Clear the file (CTRL + A > backspace)
- Choose: File > Save
- Go back to NCS Expert > Press F2 (Change Job) > Select SG_codieren (Write ECU) > Click OK
- Press F3 (Execute Job)
- Repeat steps 21 to 31 for the NFRM/FRM module. The CAS and NFRM are now reset to the newly assigned $VO attributes (the battery will be coded to the new VO setting).
Method 5: Register BMW Battery with Foxwell Scanner
- Replace BMW Battery with AGM (Advanced Glass Mat)
- Locate the OBD-II port near the brake pedal under the dashboard and plug in the BMW NT510 scan tool.
- Turn the key to position II,
- Press the Push Start button, if applicable, without pressing the brake pedal.
- Using NT510, select BMW, scan for VIN, select Body menu 4, Power Supply (Battery), and option 2 for Battery Registration.
- Register a new battery or charge capacity/type if necessary.
NOTE: Do not unplug the scanner or turn off the ignition during the battery registration process. There is no need to run options 2 and 3 if the replacement battery has the same specs as the old one.
BMW Registration vs. Coding
The difference between Registering a New Battery and Coding a New Battery can be confusing:
- Registration – This mandatory step informs the vehicle that a new battery has been installed, closely matching the original’s specifications. Most comprehensive BMW diagnostic tools can accomplish this task. Failing to complete this step can reduce the lifespan of the new battery.
- Coding -It’s essential to reprogram your vehicle’s system when installing a new battery with significantly different specifications from the one being replaced. Differences in Cold Cranking Amps (CCA), ampere-hours (Ah), or battery chemistry (like Pb, lead acid, or AGM) necessitate this coding step. Unfortunately, only a limited number of scanners can perform this task. For a hassle-free experience, we highly recommend choosing a replacement battery with specifications closely matching the original. Ideally, CCA and Ah values should not deviate by more than 5% to avoid the need for coding. This 5% guideline is based on our extensive testing and experience. Additionally, select the same type of battery; for instance, if the existing battery is AGM, the replacement should also be AGM.
What will happen if I don’t register a BMW battery?
If a new BMW battery isn’t registered with the car’s onboard computer, also known as the DME (Digital Motor Electronics), various problems can arise. Firstly, the DME may not accurately calibrate the charging system for the new battery, leading to either overcharging or undercharging. This can diminish the new battery’s lifespan and lead to premature failure.
Additionally, failing to register the battery could trigger erroneous “check control” alerts on the dashboard. These warnings may suggest issues with the charging system or the battery, even when there is no real problem.
Another crucial point to note is that if the battery is unregistered, it could hinder the vehicle from starting. The DME requires the battery’s voltage and capacity to manage the car’s electrical system efficiently. Lacking this data, the vehicle may struggle or fail to start altogether.
Conclusion
Ultimately, if the battery is unregistered while driving, the DME might struggle to track its charge level accurately. This could result in the battery becoming over-discharged, potentially damaging the battery and other electrical system components.
In summary, failing to register a new BMW battery can lead to problems such as reduced battery lifespan, inaccurate warning alerts, starting difficulties, and harm to the vehicle’s electrical system. Consequently, it’s crucial to register the battery immediately upon installation. Here are some complications you might encounter if you neglect to register a BMW battery:
- Shorter life for the new battery
- Potential electrical issues and malfunctions
- A drivetrain malfunction warning may come on
We strongly advise against bypassing battery registration on a BMW, even if you’ve seen someone on YouTube do it without programming. Skipping this step may compromise the longevity of your new battery unless you’re merely aiming to get the car operational without concern for battery lifespan.
BMW Battery Registration Scan Tools
To register a BMW battery, an OBD-II scan tool is required. Below are some popular scan tools for BMW battery programming.
- YOUCANIC Full System Scanner – This can be used to program and code a new BMW battery. Great scanner to read and clear codes from all BMW systems. Works on most makes and models.
- AUTOPHIX Enhanced BMW Full Systems Diagnostic Scan Tool 7910
- BMW Scanner Diagnostic Tool FOXWELL NT510 Elite Full System BMW
- ANCEL BD300 Bluetooth BMW/Mini Cooper OBD1 OBD2 Scanner
Frequently Asked Questions
Do I Need to Register a BMW Battery?
A BMW battery must be registered so the engine control module (DME – Digital Motor Electronics) can accurately determine the current required for proper charging. Failing to register a new battery may result in premature failure due to overcharging or undercharging. BMW introduced battery registration in select 2002 models, and by 2005, most BMW models mandated this process. If your BMW predates 2002, battery registration is not necessary.
Do I need to register a BMW battery every time I change the battery?
Whenever you swap out the battery in a BMW from 2002 or later, it’s essential to register the new battery. This is a simple process, but it does require a specialized BMW scanner.
If the new battery has different specifications than the old one, additional steps known as coding are necessary.
What is the difference between BMW Battery Registration and Coding?
Many members frequently inquire about the distinction between BMW battery registration and coding. Battery registration resets the charging history of the old battery and informs your BMW that a new battery with identical specifications has been installed. This allows the Engine Control Unit (DME) to charge the new battery efficiently.
Battery Registration Registration must be performed whenever you change a newer 2002 BMW battery. It lets the car know the battery installed is brand new.
No coding will be required if the new battery has the same specs or is very close to the old battery (CCA, CA, Ah, battery type).
Battery Coding: If you change the battery capacity or type in addition to the registration procedure, you must carry out coding. Coding is required if the new battery has different specifications than the old battery installed in the car.
For example, if you install a battery with a higher or lower cranking Ampere rating or switch between Lead Acid and an AGM battery, you must code (program) the DME. Otherwise, the DME may overcharge or undercharge the new battery and, therefore, shorten the battery’s life.
Can I use an OBD-II scanner to register a BMW battery?
To complete the BMW battery registration process on your own, you’ll require an OBD2 scanner specifically designed for BMW battery registration. Note that not all OBD-II scanners have this capability.
What changes in the ECU when you register a BMW battery?
Battery capacity is set to 80%
The current Odometer reading is stored.
Delete stored battery statistics such as:
Current
Voltage
Battery Charge Level.
Stored temperature statistics are deleted.
Can I replace the battery and drive it to the mechanic for registration?
Certainly, driving your BMW for a brief period won’t cause any harm. Prolonged overcharging or undercharging can adversely affect battery life or create issues.
How do I know if my BMW requires registration?
Here is a list of BMW models that require Battery Registration: 2006 and up 3-series E90 E91 E92 E93
2004 and up 5-series E60 E61
2003 and up 6-series E63 E54
2002 and up 7-series E65 E66
2007 and up X5 series
2008 and up E70 chassis
X6 series E71 chassis
Check with your BMW dealer to confirm.
Can AutoZone install a BMW battery?
AutoZone won’t install or register batteries for BMWs from 2002 or newer. We’ve contacted multiple AutoZone locations, and they’ve confirmed they won’t handle installations for models requiring battery registration. However, if your BMW is from 2001 or earlier, AutoZone may be able to assist since those models don’t require battery registration.
Should I reset the error codes?
A low voltage error code could have been activated and recorded across multiple systems due to a failing BMW battery. Conduct a comprehensive system scan and erase any stored codes. This process should also deactivate any Safe Modes, such as Energy Saving and Transport Modes.
Which BMW models need battery registration?
Most 2002 and newer models.
E61, E63, E64, E65, E66, E67,
E70, E71, E72, E81, E82, E84, E87,
E88, E89, E90, E91, E92, E93, F01, F10.
What is BMW Battery Coding?
Avoid installing a battery with mismatched specifications, although sometimes it’s unavoidable. If you use a battery with a different capacity, be aware that BMW offers distinct charging profiles for various battery sizes, such as 80Ah, 90Ah, or 110Ah. You must code the DME module to recognize the new battery capacity. Similarly, if you switch battery types, coding is mandatory. BMW’s charging methods differ between lead-acid and AGM batteries. Coding is required when you change the battery type from Lead Acid to AGM (or vice-versa) or alter the battery capacity.
Why do I have to perform BMW battery registration?
Don’t overlook battery registration. If you lack a diagnostic scanner, seek an independent repair shop to handle the task. Some may only charge for half an hour of labor.
Questions?
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