Comprehensive Guide to Adding Mercedes FBS4 Full Keyless Keys with KeyDIY PAK09 and KD-X4

If you’re looking to enhance your vehicle's key management system, adding full keyless keys for your Mercedes Benz using the KeyDIY PAK09 and KD-X4 can significantly improve your experience. This guide will walk you through the process step-by-step to ensure a seamless setup.

Requirements

• KeyDIY KD-X4 with APP
• KeyDIY PAK09 Phone as Key BBA Box
• Original car key
• KeyDIY ZB smart remote

Step-by-Step Operation Guide

Follow these steps carefully to successfully add new Mercedes Benz FBS4 full keyless keys.

Step 1: Unpack the Product

Start by unpacking the product box thoroughly to ensure you have all components required for the operation.

Step 2: Remove the PCB

Take out the PCB from your original car key. This is a crucial step before proceeding to the wiring and programming.

Step 3: Prepare the KD APP

To access the wiring diagram necessary for the installation, you have two options:

1. Method 1: Open the shell of the KeyDIY PAK09 and scan the QR code located inside to view the soldering diagram.
2. Method 2: Open the KD APP software, and navigate to Learning Center -> Help Center -> Wiring Diagram for Original Remotes to view the car key wiring method.

Follow the wiring diagram to solder the PCB correctly. Once soldering is completed, insert the adapter cable connector into the appropriate trigger connector.

Step 4: Power Up the PAK09

After soldering, place the PCB back into the KeyDIY PAK09 device and close the back cover. Power on the device by:

• Short press the power button once, then long press for 3 seconds.

The indicator light should flash, indicating that the power-on was successful.

Step 5: Generate Program

To add the physical car key support, you must generate the corresponding program. Follow these steps:

• Place the KD remotes unit into the KeyDIY KD-X4 key programmer.
• Open the KD APP software and select Remote Function -> Vehicle Remote.
• Select the appropriate remote control program, e.g., PAK09 PHONE KEY (ZB).
• Click on Generate and then choose Wireless Generation.
• Wait for the Generate successfully, KD-coins collected message to appear.

Function Demonstration

Now that you have generated the necessary program, follow these instructions to pair your new key:

• Click Settings in the top right corner of the KD APP.
• Navigate to Device Management and press the search icon to find devices.
• Select the PAK09 Phone as Key you want to connect to.
• Enter the initial password: 000000 and change the password when prompted.

To start adding the key:

• Go to Settings -> Key Management.
• Click on Enter Matching Mode.
• Before the countdown ends, press any button on the remote to add the key.

After adding the key, put the KEYDIY KD ZB31 smart key on the sensing area of the KD-X4 key programmer to test the remote frequency.

Conclusion

Congratulations! You have successfully added a new Mercedes FBS4 full keyless key using the KeyDIY PAK09 and KD-X4 key programmer. With this new key, you can enjoy the convenience of full keyless entry to your vehicle. For more information and products, visit VXDAS.com.