The car will overcharge or undercharge you if you don’t register it with it. When you install a new battery, the automobile will overcharge it, which will cause your battery to die sooner than expected because older batteries receive more charge than fresh ones.
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What occurs if a BMW battery is not registered?
Registration is necessary so that your vehicle is aware of the modified requirements and is able to adapt to the new battery settings. Otherwise, improperly coding your BMW battery could lead to a variety of electrical issues, including a reduction in battery life, the risk of overcharging or undercharging your battery, or, in the worst case scenario, serious harm to your car’s alternator and electrical system, which could cause your battery to fail before its time.
What kinds of electrical issues could there be? As a result of your automobile assuming that the battery life is low and attempting to conserve it, several modules of your BMW may turn off. So, at that time, it’s possible for your windows and mirrors to not close or open, your radio to not function, your interior lighting to not function, or other modules that are not required for starting or operating a car to fail.
Why register the replacement battery?
The servicing procedure “Register battery replacement” must be executed after installing a new battery. To let the power management system (software in engine electronics and an intelligent battery sensor) know that a new battery was put in the car, the battery replacement must be registered. The power management won’t work effectively if the battery change is not registered, which could result in certain tasks being restricted by particular electrical consumers being turned off or having their power consumption lowered. Power management will charge the new battery as if it were the old, worn-out battery, resulting in the replacement battery failing sooner than expected.
Important! The on-board computer’s display may show inaccurate values if the new battery hasn’t been recognized because of outdated information in the power management system (check control message “Recharge battery” appears even though the battery is new).
The power management in the Digital Engine Electronics (DME) or Digital Diesel Electronics (DDE) is alerted by a servicing function when a battery needs to be replaced. The following actions are carried out:
- 2. Changing a battery with a different capacity but the same kind (registration/conversion)
- 3. Changing to a new type of battery (for programming, conversion, or registration)
- 4. Software updates for the entire battery management system
For vehicles with EfficientDynamics, changes to the charging profile also impact how the Start/Stop system functions.
Car 1:
The battery is being replaced with an identical one. To inform the car that the battery is new, you register replacement so that the charging profile can be modified appropriately. If you don’t, the car will try to charge an outdated battery and eventually fail.
Car 2:
You replace a Standard LA battery with an AGM (or vice versa). Because the charging profile will be for the wrong sort of battery and accelerate battery failure, if you don’t register the replacement, it will toast the new battery for similar reasons to Car 1 but even worse. You MUST utilize a “conversion” in this scenario to switch the battery type. Register a replacement after that.
The vehicle must remain stationary with its new battery installed for at least 3 hours after a battery replacement. Until then, it is impossible to determine the new battery’s charge level with any degree of certainty. Possible The battery’s complete discharge-related Check Control signals are then hidden.
After a power supply interruption, some systems’ range of use may be constrained. Individual settings might also be lost.
Depending on the equipment specification, settings or activations are required. For instance:
- Autonomous engine start-stop function (MSA) vehicles: The MSA function is only operative after a learning period (the vehicle must not be awakened for approximately 6 hours).
The lifespan of a battery in these cars, whether an AGM or ordinary battery, can be significantly shortened by skipping the battery registration step. On a late model BMW, skipping battery registration can be one of the problems that results in premature battery failure. For more information, see the topic on Energy Diagnosis.
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Without registering it, your automobile should still function properly. However, based on what I’ve learned, our automobiles use a clever charging system designed specifically for an absorbed glass-mat (AGM) battery. To keep the battery fully charged, the charging rate is adjusted based on the battery’s age. The automobile could overcharge a new AGM battery and perhaps shorten its lifespan if you buy one but don’t register it. The automobile might not charge a conventional Pb-acid replacement battery properly.
Look at the thread below for loads more information and examples of what others have done.
Do car batteries need to be programmed?
When the replacement battery differs from the old battery, battery programming (also known as battery coding) is essential. To determine the proper charging algorithm, your vehicle’s charging system ECU needs to know the battery’s specifications (Ah rating, AGM or lead/calcium, RC rating). Overcharging or undercharging your car battery, and perhaps your entire charging system, can cause harm if the algorithm is not compatible with the battery.
Does my car battery need to be programmed?
I’m here. Battery programming has nothing to do with changing the battery. When jumped, a car that had completely lost electricity from its battery due to the dome light being on will function normally. The key fob can require programming when the battery is changed. As the vehicle computer is reset, the key fob’s programming to the computer will be lost. The computer won’t lose its memory, though, if a 9-volt battery saver is inserted into a cigarette lighter and the car battery is removed. Seek out a specialist, like one from Your Mechanic, if you require more help with your battery.
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Do you need to reprogramme your BMW key fob after a battery change?
A remote key fob needs to be associated with your vehicle particularly in order to be secure.
This stops people who drive the same make and model of automobile as you from using their remote to access your car. You’ll need to reconfigure the fob if changing the batteries has reset this connection or if it was somehow disrupted in order to get it to detect your car once more.
What occurs if a car battery is not coded?
The customer may soon need to go back to the garage if the batteries are not put properly. The battery management system of the automobile won’t function properly without battery coding, and several vehicle operations may stop. The worst-case situation is that it might even be impossible to start the car.
Before beginning any work, a battery support unit should be installed. This keeps the electronic memory of the car. The system of the car could reset to the factory default if there isn’t a support unit.
Since the coding portion of this process cannot be skipped, it is crucial to follow the installation process from beginning to end.
To keep codes and information about the instrument display, connect a battery support unit, such as the BAT490. Throughout the process of installing the battery, this should be connected.
Make sure to unplug the negative terminal of the old battery before the positive one…
Install the appropriate new battery, being sure to connect the positive terminal first and the negative terminal after. Make sure the replacement battery’s vent tube is installed if one exists.
Make sure the battery is positioned appropriately in the tray and is fastened in place.
Choose “Energy Management” from the drop-down menu under the “Diagnosis” heading.
Verify the fault codes in the error memory. If there are no codes, move on to the next step, but before you clear any fault codes and begin the battery coding procedure, make a note of any…
Enter the battery serial number when requested. The barcode on a Bosch battery contains the serial number. You only need to input the first 10 digits of this 13-digit number.
The selection criteria will be confirmed on the next screen. Press “Continue,” then “Close Program,” “Remove Battery Support Unit,” and so forth.
Can Carly register a battery from a BMW?
In order for the car’s systems to be informed of the change when a new battery is installed, this battery must also be registered in the control unit. You can register any battery and battery type that is compatible with a BMW car using the Carly app. You can avoid going to the dealer or mechanic by doing this! Remember that you must first read out the battery to determine whether it is supported. Visit this page to see if your BMW model is compatible with this feature or any others.
What is supported depends on the built-in hardware and software of your specific car as well as the construction year. Use the Carly adapter to connect to your vehicle, and then use the Carly app to see what functions for yours. The Carly solution is always being improved, therefore after the video was shot, the app’s design may have changed and/or new features may have been introduced.
Can any battery be used in a BMW?
Finding a great BMW battery is one of the most crucial factors to take into account if you want the best for your luxury vehicle. For the best performance on the road, you must purchase a BMW car battery that satisfies the strict criteria of the vehicle.
The 5, 6, and 7 Series BMW vehicles typically have very high features. These automobiles need a lot more energy than your typical car does, thus we strongly advise obtaining them strong batteries.
You must be aware of your vehicle’s needs before purchasing a BMW battery. An Absorbent Glass Matt (AGM) battery is strongly advised for modern BMW vehicles with start-stop technology since it can handle the increased energy demand. However, you can also utilize an Enhanced Flooded Battery (EFB) if you want to buy something for less money.
Just keep in mind that you should only replace the original AGM battery in your BMW vehicle with another AGM. Because these vehicles weren’t intended to be utilized with EFBs, downgrading will cause battery and engine problems with your BMW. On the other hand, if your BMW came with an EFB at the factory, switching to an AGM battery won’t cause any issues.
EFBs outlive ordinary batteries in terms of longevity. They were created specifically for entry-level start-stop vehicles, so they can easily handle the rigorous needs of the majority of modern automobiles.
However, you should always choose an AGM battery if you want to spend more money on a more potent BMW battery. Although these batteries are made for start-stop vehicles, they are also compatible with other energy-consuming vehicles.
In comparison to conventional batteries, they offer a three times longer cycle life and may be utilized in all kinds of weather. Additionally, an AGM battery is necessary if you frequently use the car’s accessories.
BMWs with typical power requirements can be powered by standard automobile batteries. Therefore, if your car doesn’t have high-end gadgets or a start-stop system, you don’t require a special BMW car battery.
Does removing the battery reset the BMW ECU?
To reset an ECU, you don’t need to unplug your car’s battery from both terminals.
To reset an ECU, you can choose to unplug the battery from both terminals, but it’s not necessary. Simply cutting off the electricity from the car battery to the ECU will reset the ECU in your vehicle. Disconnecting the negative cable from the negative terminal is the most effective approach to interfere with the ECU’s power supply.