How to Program 2023 BMW 5 Series Smart Key with Lonsdor K518PRO?

Need to program a smart key for a 2023 BMW 5 Series with a BDC3 system? The LONSDOR K518PRO, together with the ADP40 and BDC3 Adapter Board, can generate a dealer key through a guided procedure. Here's how the process works.

Required Equipment

LONSDOR K518PRO Key Programmer

ADP40 Adapter

BDC3 Solder-Free Adapter

Original working smart key

New blank smart key

Programming Procedure

1. Read the Original Key Data

(1) Remove the chip from the original smart key and place it on the BDC3 adapter board.

(2) Connect the BDC3 adapter board to the ADP40 adapter, then connect the ADP40 to the LONSDOR K518PRO.

2. Generate the New Smart Key

(1) On the K518PRO, navigate to:

Generate Smart Key → BMW → G Chassis → BMW G BDC3

(2) Place the new key in the card slot and select Generate.

(3) Once the process is completed successfully, return to the main menu.

3. Create the Dealer Key

(1) Navigate to:

IMMO & Remote → BMW → Select from Type → BDC03 → BDC3 Key Copy (Encrypted)

(2) Ensure Wi-Fi is connected and select Read Working Key to read the original key data.

(3) Save the generated file when prompted.

(4) Next, select To Use Lonsdor Key, place the new smart key flat on the card slot, and press OK. The device will generate and lock the dealer key automatically.

Verification

Test both the original key and the newly programmed key. Confirm that the vehicle starts normally and that the Lock and Unlock functions operate correctly.

Why LONSDOR K518PRO?

The LONSDOR K518PRO combines BMW BDC3 smart key generation and dealer key creation in a guided workflow, helping locksmiths and automotive technicians complete key programming jobs more efficiently.

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How to Add 2025 BYD Formula Leopard Ti7 Key with Lonsdor K518 Pro?

Adding a new smart key to the 2025 BYD Formula Leopard Sealion 7is a straightforward process when using the Lonsdor K518 Pro. This guide provides a concise, step-by-step walkthrough of the programming procedure.

Preparation and Tools Needed

Before starting, ensure you have the following items ready:

Lonsdor K518 Pro Key Programmer

OBD communication cable

Original car key and the new smart key

A stable internet connection

Step 1: Generate the Smart Key

First, you must prepare the new key to be recognized by the vehicle’s system.

1. Navigate to Generate Smart Key > BYD > Formula Leopard >Sealion 7 2025 ID4A

2. Place the new key into the K518 Pro's card slot.

3. Click Generation and wait for the "Generated successfully" message.

Step 2: Read Data and Password

To access the immobilization system, you must retrieve the vehicle's security data.

1. Locate and remove the cross-domain platform box located below the steering wheel to facilitate password reading.

2. On the K518 Pro, select Immo & Remote > BYD >Smart Key > Formula Leopard Series > Sealion 7> 2025- > Program smart key

3. Follow the on-screen prompts: Turn off the ignition and turn on the hazard lights (flashing lights).

4. Select Method 3: Disassemble the left EEPROM of the CEM module to obtain the 32-bit PIN code

5. The device will read the EEPROM data. Once successful, save the file to your device.

Step 3: Program the Smart Keys

Note: All keys not present during this process will be deleted from the system. You can program up to 4 keys total.

1. Select the saved EEPROM file to begin programming.

2. Program Key 1: Place the first key (original) in the vehicle's sensing area and click OK until "Program complete" appears.

3. Program Key 2: Place the second key (new) in the sensing area and click OK.

4. Once both keys are registered, click Cancel to finish the session.

Step 4: Verify Functionality

Always test both keys to ensure the immobilization and remote features are working perfectly.

Engine Start: Press the brake and the Start button with each key individually to confirm the engine starts.

Remote Features: Test the Lock and Unlock buttons on both the original and the new smart key.

The programming for your 2025 BYD Formula Leopard Sealion 7 is now complete.

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Lonsdor K518 Pro Wring Diagrams for BMW BDC3 &VAG 5C/5D

The Lonsdor K518 Pro Key Programmer, when paired with the Encrypted Solder-Free Adapter Kit, provides a powerful solution for reading encrypted data across premium vehicle brands. This setup enables advanced programming for BMW G/U chassis systems and smart key reading for VW, Audi, and Porsche.

Software & Licensing Requirements

To utilize these features, ensure your device meets the following criteria:

K518 Pro Full Version: The device must have an active subscription period to function.

K518 Pro FCV: This specific version requires the manual activation of the BMW BDC License and the VW MQB49 5C 5D License.

Technical Wiring Diagrams

A proper connection is vital for successful data reading. Reference the diagrams below for specific vehicle modules:

BMW G-Chassis /U-Chassis with LCD Screen:

Volkswagen 5C/5D Systems

Audi 5D Systems

Porsche 5D Systems

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Program 2014 Hyundai Verna Smart Key with K518 PRO

This guide demonstrates how to use the Lonsdor K518 PRO to program a smart key for a 2014 Hyundai Verna. Follow the step-by-step procedure below to successfully generate and program a new smart key.

What You Need:

Lonsdor K518 PRO

OBD Communication Cable

An original working key

A new Lonsdor smart key

Step 1: Generate the Smart Key

Plug in the OBD communication cable to the vehicle.

On the K518 PRO, select:

[Generate Smart] → [HYUNDAI] → [Verna (RBC)] → [Verna ID46]

Insert the new smart key into the card slot.

Click [Generate].

Wait until the system displays:

“Generation successfully.”

Step 2: Read PIN Code

Return to the main menu.

Select:

[Immo&Remote] → [HYUNDAI] → [Select from vehicle] → [China] → [Verna (RBC/CB)] → [2014-2016] → [Program smart key] → [Read PIN code (46 smart key)]

Choose Read PIN code via OBD.

Turn off the ignition.

Open and close the main driver's door once until the hazard lights flash twice.

Click “OK” to continue.

Wait for communication to complete.

When finished, the screen will display:

“PIN code read successfully.”

Step 3: Program the Smart Key

Select [Program smart key].

Press the Start button once.

Click “OK” to continue.

Turn off the ignition.

Open and close the main driver’s door once until the hazard lights flash twice.

Click “OK”.

Wait for communication.

Follow on-screen prompts.

The PIN code will be automatically entered.

Click [OK].

Use the smart key to press and hold the Start button for 5 seconds.

The device will display:

“Programmed successfully.”

If prompted to program another key, select OK and repeat the procedure.

Once complete, the system will confirm:

“Both keys have been successfully programmed.”

“Key has been added successfully.”

Step 4: Test the Keys

Test the New Smart Key

Step on the brake pedal.

Press the Start button.

Vehicle starts successfully.

Test the Original Key

Step on the brake pedal.

Press the Start button.

Vehicle starts successfully.

The smart key programming for the 2014 Hyundai Verna is now complete.

Video Guide

Watch the full video tutorial here:

For more automotive key programming guides, visit:

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How to Add 2020 Honda Accord Smart Key with Lonsdor K518 Pro?

Programming a new smart key for a 2020 Honda Accord is a straightforward process when using the professional-grade Lonsdor K518 PRO. Whether you are a locksmith or a DIY enthusiast, this guide covers the essential steps for generating and syncing a new key via the OBDII port.

Preparation & Requirements

Before starting, ensure you have the following items ready:

K518 Pro FCV/ K518 PRO Key Programmer

OBD Communication Cable

One Original Working Key

One New Smart Key (Lonsdor Compatible)

Step 1: Generate the Smart Key

The first phase involves preparing the new key hardware to be recognized by the vehicle.

1. Hardware Connection: Plug the OBD communication cable into the vehicle's port.

2. Navigate Menu: Select: Generate Smart Key> Honda > Accord >Accord gen10 4A 2018-2019.

3. Key Induction: Place the new Lonsdor smart key into the K518 PRO card slot.

4. Execute: Click "Generate", once the screen displays "Generate successful", return to the main menu.

Step 2: IMMO Programming(Add Smart Key)

Now, you must link the newly generated key to the Accord's Immobilizer (IMMO) system.

Access the Programming Menu

Go to: IMMO & Remote > Honda >Select form vehicle >Asia > Accord>2019–2022>Smart Key > Push Button>Add one smart key. Click OK to begin.

The Programming Sequence

1. Ignition On: Press the vehicle's Start button twice to turn the ignition on.

2. Original Key Induction: Place the original programmedkey inside the car and remove all other keys. Click OK.

3. New Key Induction: Remove the original key and place the new smart key inside the car. Click OK.

4. CyclingIgnition: Follow the on-screen prompts to turn the ignition OFF and ONwithin 15 seconds for each step.

5. Final Sync: Verify that the security light on the dashboard has turned off. Turn the ignition off as the final step.

Step 3: Functional Verification

The device should display "Programming complete" and show the number of programmed keys as "2".

1. Engine Start Test: Step on the brake and use the new key to start the engine. Repeat this for the original key.

2. Remote Control Test: Test the Lock and Unlock buttons on both keys to ensure the remote functionsare fully operational.

Get Genuine Lonsdor Tools Online

Get your Lonsdor K518 PRO and high-quality replacement keys from a trusted source. Ensure your programming is seamless every time.

Visit our shop today: www.obd2shop.co.uk