How to Add BMW G Series BDC3 Key with Autel IM508 IM608?

Compatible devices:

Autel IM508S/IM608 II or OTOFIX IM series with with XP400/XP400 PRO/XP1 Pro

The OTOFIX IM1/IM2 series will also be upgraded later.

09/03/2025 V4.70

BMW_IMMO

Adds Add Key function for BDC03 immobilizer for the following models with G chassis:
[Major upgrade]

NOTE:

We still need to pay BMW G-chassis subscription to add BDC3 key. IMMO1YRUP card now offers comprehensive Coverage of “Add Key” on BMW G-Chassis Vehicles with BDC02 or BDC03.

It is getting immo from key not from BDC3 module. It is safer.

Need to add an Autel BMW ikey universal smart key.

The current function only supports adding keys for some BDC3 models, not all.
For keys with model years between 2020-2024 and the “Hungary” marking in the upper right corner, the success rate is higher.

Main steps to add BMW G Series BDC3 Key with Autel:

Go to Smart mode- scan BMW BDC3 immo module- select Add key function.

Step 1: Read vehicle info
Step 2: Read key data
This step requires disassembling the original key and reading data from original key.

There are 3 ways to connect the key board with xp400 pro:

1. Use the APB113 adapter (it is included in the IMKPA kit) to connect the key to the xp400 programmer.

2. Use a wiring harness to connect the key to the xp400 programmer.

3. Use a solder-free clip to connect the key to the programmer.

It is recommended to use the APB113 adapter for more stable data reading.

Then connect the apb113 adapter to the xp400 pro to read key data.

Step 3: Generate dealer key
This function only generates Autel BMW ikey.
Place the Autel BMW ikey to the coil of XP400 Pro like this.

Then start generating key.