Lonsdor K518 Pro programmed a new smart key to a 2014 BMW X1 CAS3 via OBD successfully.

The CAS3 needs to be updated to CAS3++. Before doing this, manually back up the original car EEPROM data. After upgrade, you can add a new key.

Operation guide:

Step 1: Back up original car EEPROM data

Connect K518 Pro key programmer and the BMW car via OBDII cable

Select Immo & remote>> BMW>> Select from type>> CAS1/CAS2/CAS3>> Backup & recover (only key data)

This function allows to restore and backup CAS key data:

1.Please carry out this before key programming

2.When key programming causes CAS to lock, you can use the previously saved key data to reset CAS.

Press “OK” to continue

Press "Start button" once

Identify the CAS part number and CAS type is CAS3++ (ISTAP).

This CAS version requires update operation to continue. Return to previous menu and update CAS.

Step 2: Update CAS3

Select “Update CAS3” on the main menu

Starting to update CAS:

1.This function will update CAS3++.

2.Before doing this, please manually back up the original car EEPROM.

We have backed up the data, click “OK” to continue

Press start button once

Confirm the CAS part number and CAS type

The CAS update has been completed.

Step 3: Program key

Select “Program/delete key” on the main menu

Press start button once

Identify the CAS part number and CAS type.

For encrypted CAS, please use a working key to switch ignition on.

Confirm the vehicle info

Reading RAM, about a minute…

Remove key from ignition switch

For smart key, take it outside the car

Select “Backup key data”

Input a new file name to save the data (i.e. BMWCAS3)

Operation complete!

Start to make dealer key…

Use a working key to switch ignition on

The ignition is 6 now

Remove key from ignition switch. For smart key, take it outside the car

Reading key info…

Select one key position to delete

Delete key successfully

Select one key position to add

Select “Via this device’s card slot”

Note:

1.If it’s genuine /OEM key, please pre-process it first.

2.If the key was programmed to this vehicle but programming failed, please unlock the key and restore CAS key data first.

Select “Remote key”

Pull the card slot’s baffle to the right and insert the key to be programmed (to identify if key is valid and to pre-process key)

The current key is legal, continue to generate

Insert the key needed to be programmed into car slot

Writing key info…

If for remote or smart key, please complete the following steps:

1.Take away the key from ignition switch

2.Re-insert the key into ignition switch

3.Press Start button

Finally, use the key programmed to start the car and test remote, all work fine!

Done!

2014 BMW X1 CAS3 smart key was programmed by Lonsdor K518 Pro Key programmer perfectly.

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