Learn Bmw Coding

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In the good old days when your BMW battery died one could go to the local auto shop, pick up a new one, replace it at home and get back on the road. Unfortunately, with the late model BMW's battery replacement is not as simple yesteryears. The new batteries need to be replaced by a dealer or qualified Euro specialist with the right tools to either register or program the car to your new battery. Failure to do so can result in overcharging of your new battery or even electrical malfunction.

What model BMW’s need to have their batteries reprogrammed or registered?

  • 2002 and newer 7-Series E65/E66 chassis
  • 2003 and newer 6-Series E63/E64 chassis
  • 2004 and newer 5-Series E60/E61 chassis
  • 2005 and newer X5 E53 chassis with N62 engine
  • 2006 and newer 3-Series E90/E91/E92/E93 chassis
  • 2007 and newer X5 E70 chassis
  • 2008 and newer X6 E71 chassis

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Why do new model BMW’s need battery programming and old ones do not?

Code Fundamentals. Learn coding concepts from strings to arrays by creating traps, powerups, and more. Retrofit coding for BMW OEM equipment such as LCI tail lights, HD radio, satellite radio, security alarm, Bluetooth, Performance accessories, etc. Replacement module coding Battery coding and registration.

The newer BMW models listed above are significantly more advanced electronically than models from the 1990s and older. All of the advancement is ultimately pushed forward in the name of improving gas mileage. The newer models are equipped with IBS or Intelligent Battery Sensors. The IBS system is attached to the negative battery terminal and contains micro processors which measure and monitor voltage, current, charge and discharge as well as temperature of the battery.

How does the IBS system help improve fuel efficiency?

The IBS system is used primarily for the start stop function which eliminates the burning of fuel while at complete stop, also reducing CO2 emissions. The IBS system continually analyzes the charge of the battery system and intelligently charges it only when needed. When the battery is sufficiently charged, the motor does not need to spin the alternator thus improving efficiency of the engine and gaining more miles per gallon.

What does registering the new BMW battery do?

As your battery ages and loses charging capacity, the car adjusts how much it needs to recharge it to operate at an optimal level. The older the battery the more charge is required. Putting a new battery in your BMW and registering your battery tells your car that a new battery is installed. As a result, the car will not overcharge the new battery thinking the old one is still in there. Registering the battery also resets battery statistics based off your old batteries temperatures and behaviors wiping the slate clean.

What does programming the BMW battery do / What is the purpose of registering a BMW battery?

If you are swapping out your BMW battery for a new one with different amperage and or voltage specs, the car needs to be told this so it can adjust for the new battery settings and not damage your car’s fragile electrical system. As a result, reprogramming will need to be done.

What if I skip programming or registering my new battery / Is registering a BMW battery necessary?

Skipping this step WILL shorten the life of the battery as well as potentially damage your vehicles electrical system. The new battery will become overcharged as the car still thinks the old battery is installed. This can potentially cause damage to the car’s alternator. Your car may also throw off warning lights as indicators of these issues.

Who can register or program a BMW battery?

Any BMW dealership will be able to program or register your new BMW battery as well as authorized BMW shops. Special software and plugs are required to perform this process and is best left to the hands of professionals. Luckily, the process is straight forward and a routine job for these shops. As a result, the cost isn’t outrageous and you get the peace of mind knowing your car is serviced and as BMW designed it to be.

Why does BMW have to do this and be a huge pain?

BMW is not the only manufacturer doing this. With the stricter emission standards set by the government it is only a matter of time before all car manufacturers will eventually go to this new intelligent battery system. With hybrid and full electric cars becoming more popular the electronic systems are becoming so advanced the maintenance can only be done by qualified technicians with specialized tools.

Where can I learn more BMW fun facts

Learn more interesting facts about your BMW by clicking HERE

Learn Bmw Coding Practice

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Understand errors behind the engine light, save money on servicing, code your BMW and more. Simply use the Carly app - Android and iOS - and the Carly Universal adapter.

Feature Finder

Find out what Carly can offer for your BMW

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Top Carly features for BMW

What BMW owners love most

Car Diagnostics

Understand your car's health

Carly can read out fault codes from all important built-in electronic control units, going deeper than OBD-level. You will receive the exact same code any professional garage would, together with an interpretation of the severity.

Car Coding

Disable the automatic Start-Stop

Carly can help you disable annoying features, like the automatic engine Start-Stop system.

Car Diagnostics

Clear fault codes

After performing diagnostics, you get a fault report, but not every fault code implies a current defect. Clear the OBD- and manufacturer level codes and perform a second diagnostic. The codes that stay need your attention.

“Knowing what was wrong with the engine, I didn't drive further. This saved me $4000 in repair“

Your BMW unlocked

Access your BMW's features

Connect your smartphone with your Universal Carly adapter through the Carly App to find out what works for your unique car.


Carly can read out and clear fault codes that other scanners cannot. Carly reads from all built-in electronic control units (ECUs), including Engine, Transmission, ABS, Airbag, Multimedia, and more. In addition to reading the codes, Carly interprets the severity of the issues and saves your car's health history. Depending on your car, it might support Engine Freeze Frames or Info Memory, too.

How you benefit
Bmw coding app

It’s important to catch potential problems before they cost you dearly - for example, engine-related issues can cost up to $10,000. Mechanics recommend running diagnostic sessions several times a year, but each session can easily cost you over $60.

Live Data

Carly reads out and monitors detailed engine data, such as temperature and pressure values.

How you benefit

Live parameters or live data can help you take the guesswork out of understanding what your car needs or detect the fault origins.

Works with all car brands.

Used Car Check

Those who reduce car mileage can sell the vehicle for almost $5,000 more than the actual value. Carly sources KM/Mileage/Lifetime data and VIN from different ECUs (control units) of your car to detect cases of manipulation and tampering.

How you benefit

With the Used Car Check feature you’ll know if the car mileage was manipulated and more.

To check, if the feature is supported for your model, go here. It as well depends on the build year and the built-in hardware of your individual car.

Digital Garage

All of your past reports will be saved on your smartphone so you can refer back to them whenever and wherever you’d like. You can then generate official Carly PDFs and email them. The reports depend on the features that are available for your car.

How you benefit

Your Digital Garage provides a place to store diagnostic reports, used car check reports, and coding backups. It makes it easy to share it with your mechanic or potential car buyers.


Cars have hidden internal settings that the average consumer doesn’t have access to. With Carly it is simple to adjust the code of your car so you can customize your car, exactly to your liking. Don’t like what you did? There is an automatic backup feature that easily allows you to return to the original settings.

How you benefit

Customize your car to your liking by making adjustments through Carly’s coding feature. Examples include adjusting the look of your interior lights, change how your windows work, and so much more!

Supported for the majority of BMW and Mini models from 2000 and later. Check, what codings could be possible for your car here


You can watch DVDs and TV while driving, display Park-distance-control (PDC) like in F-models, and more.

How you benefit

In case your car is equipped with an iDrive, you can use this function to unlock useful entertainment features.

To check, if the feature is supported for your model, go here. It as well depends on the build year and the built-in hardware of your individual car.

Exhaust Flap

Manually open your exhaust valve with the press of a button — even while driving. It’ll stay open only as long as the app is connected.

How you benefit

Many BMW models have an exhaust flap installed to reduce noise levels. With the Carly App, you can open the exhaust flap anytime to hear that pure engine sound.

To check, if the feature is supported for your model, go here. It as well depends on the build year and the built-in hardware of your individual car.

Service Reset

After changing the oil or brakes yourself, reset the service point through the Carly app. If you frequently do repairs yourself, you can view extended service data to see how often certain maintenance services have been conducted on your car.

How you benefit

Save time and money by changing your oil or brakes yourself. Resetting your service settings is as easy as pressing a button within the Carly app.

To check, if the feature is supported for your model, go here. It as well depends on the build year and the built-in hardware of your individual car.

Battery Reset

Bmw Coding Options

With the Carly app, you can register the right battery in the car.

How you benefit

When you go to the mechanic they typically offer you the original manufacturer's battery, which is more expensive (~$300), and on top of that the service presents additional costs (~$200). Save time and money by choosing your own battery and installing it yourself.

To check, if the feature is supported for your model, go here. It as well depends on the build year and the built-in hardware of your individual car.


With the Carly solution you can check the DPF (Diesel Particulate Filter) critical values — i.e. soot mass, ash mass, average engine speed. If needed, you can request a DPF regeneration and track the process.

How you benefit

Intended to help reduce exhaust emissions, DPFs, unfortunately, can quickly become blocked, resulting in negative effects on fuel consumption and power. In a critical case the filter cannot regenerate itself, resulting in a filter change that can cost you up to $3,000.

Supported for BMW and Mini cars with special diesel engines only. To check, if the feature is supported for your model, go here. It as well depends on the build year and the built-in hardware of your individual car.


Often your BMW petrol engine cannot regenerate itself and you need to replace the filter. That happens when the capacity to store the nitrogen oxides is reached. With Carly you can check the loading status of the catalyst through certain parameters and start the regeneration manually, live-monitor your NOx, and track the regeneration.

How you benefit

When there are too many ashes it affects the fuel consumption and the power. But if you act before the warning lights on the dashboard appear, you can save anywhere from $2,000 to $3,000 by avoiding the need to replace your NOx filter.

Supported for BMW and Mini cars with special petrol engines only. To check, if the feature is supported for your model, go here. It as well depends on the build year and the built-in hardware of your individual car.


Your automatic transmission continuously learns about your current driving behavior. With this feature, you can observe the most important parameters and reset learning values directly at the push of a button. Only request this if needed.

How you benefit

Now you can read and reset automatic transmission values to fit your style more quickly. This is especially valuable in cases where you are buying a used car — for example, the previous driver was doing short city trips, while you spend most of the time on highways.

Works with almost every BMW and Mini car with an automatic transmission. To check, if the feature is supported for your model, go here. It as well depends on the build year and the built-in hardware of your individual car.

Parking Brake Reset

To be able to perform work on the brake system, it is necessary to set the servo motors of the brake system into workshop/service mode first. With Carly it is easy to set your electronic parking brake into service mode and back into operation mode. In addition to an electronic parking brake, many modern vehicles also have a brake wear sensor, which tells you the wear point of the brake pads. Prediction app download.

How you benefit

Carry out repair work on your brake system by yourself. Calibrate your parking brake as if it were brand new.

To check, if the feature is supported for your model, go here. It as well depends on the build year and the built-in hardware of your individual car.

Emission Check

Use the app to test emission relevant systems and procedures for exhaust systems of your car.

How you benefit

Learn Bmw Coding Test

Catch emission issues yourself, before you get your car serviced and talk to your mechanic at eye-level.

OBD functions

With the OBD functions, read and delete all OBD engine fault codes and perform maintenance work with detailed data (e.g. oil temperature, rpm), or test emission relevant systems and procedures for exhaust systems.

What you can do with Carly varies from car to car. Get your adapter and find out what could work for yours.

“I programmed the windows to close using the fob, I programmed the locks to automatically lock at a certain speed, and so many other things I never knew I could!“
“I drive a BMW E61 and as you all know it is not the most reliable car, but Carly made my life way, way easier.“
“That manufacturers lock features that obviously are already there, is just ridiculous.“

Most Common Questions

If your car is built after 1996, the Carly solution should work for you and for almost all car brands in the world. You need the Universal Carly Adapter and in case of a BMW older then 2001, you need the 20-pin adapter extension, too. The app runs both in Android and iOS. The features your car supports depend on the model, build year, hardware and software in the car. To check which functions are supported for different BMW models, click here. To make sure what features work for your individual car, plug the adapter in the OBD port, connect to the app, and run your first diagnosis.
For which BMW cars does the coding feature work?
Coding works for most BMW and Mini models with a build year older than 2000 and even for some that are older. Go here to check, which functions work for your car and to get a list of supported codings per BMW model. Remember, since every car is unique, Carly functions and coding possibilities vary by car model, build year, hardware and software.
What is the price of the adapter and the Carly app?
Learn Bmw Coding
To see the pricing possibilities, go here.
Can I break my car, or could my warranty expire after using Carly?
The Carly solution is safe to use and should not break your car or affect the warranty if you use it correctly and in line with our recommendations. Just like with every other car tool.
The new Carly adapter and the All-In-One app make it possible to use the solution for almost all car brands in the world. The features you can use for the individual car depends on the brand, the model, built year, the hardware and the software in the car.
More answers to your questions