BMW ECU Programming with Autel Maxisys Pro MS908P

BMW ECU Programming with Autel Maxisys Pro MS908P

In this article, we explain step by step how to perform reflash, programming, and coding operations with the Autel Maxisys Pro-MS908P device and J2534 ECU programming device.

Note: The Autel MS908P and Autel Maxisys Elite are the only devices on the market that support online ECU programming. You cannot perform these operations without a password using any other device.

Vehicle Model: BMW 750Li 2006

Let's proceed step by step;

Part 1 – Establishing connections

Step 1 – Connecting the power supply

• Connect the vehicle to a stable power supply
• Make sure the battery clamps are securely fastened
• Ensure your Autel MS908P tablet is fully charged

Step 2 – Connecting to the internet

• Connect your Maxisys Pro to the internet
• Make sure your internet connection is stable for a successful ECU programming session
• You can use a wired or wireless connection
• Check the internet connection status icon in the lower left corner of the screen to confirm connectivity.

Step 3 – Connecting the J2534 ECU programmer

• Connect the Maxiflash J2534 ECU programmer to the MS908P device with the USB cable
• Tighten the screws

Step 4 – Connecting to the vehicle

• Connect the Maxisys Pro MS908P to your vehicle with the OBD2 cable
• All connections are now established

Part 2 – ECU programming

We are starting ECU programming on the BMW

• Maxisys Pro MS908P: select Diagnostic from the menu.
• Select BMW
• Turn off the ignition, wait 10 seconds, and turn the ignition back on.
• Click OK and read vehicle information
• For ECU programming, click CIP (coding, individualizing and programming)
• Vehicle configuration
• Read the data and click OK to continue. An Edit button is available to perform customized SA configuration.
• Make sure everything is correct and delete the vehicle data correctly.
• Click OK
• Press Esc to exit when complete
• Click Yes to save the data
• Maxisys connecting to the control unit may take a few minutes
• Confirm whether any control unit was changed before programming
• Click Yes or No according to your answer to continue.
• Select SIM for coding/programming
• Click Selective update to program a specific control module separately
• Or perform a bulk update by selecting all modules
• We select SIM for programming
• Click OK for vehicle information
• Click Execute measures plan to continue
• Turn off the ignition
• Select Terminal 15 (ignition)
• Before starting the reflashing process, make sure network and other connections are established.
• Coded! Stored fault data will be deleted.
• Turn off the ignition and remove the key from the ignition barrel with the remote
• Wait 10 seconds
• Insert the key with the remote and turn on the ignition
• Then proceed to the next operation. All operations will be performed automatically one by one.
• Do not perform another operation at the same time
• The system will notify you after the reflashing process.
• Click End to finish the ECU reflashing/programming process.

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