Xhorse VVDI Audi BCM2 Solder-free Adapter Tutorial

Today, eobdtool is going to bring you a new solution to Audi key programming – Xhorse VVDI Audi BCM2 Solder-free Adapter. We’ll show you how to read encrypted BCM2 with VVDI Prog+VVDI2 or Key Tool Plus.

Of course, check if you need to take BCM2 out:

Add Key All Keys Lost
BCM2 Data Sync Data BCM2 Data Sync Data
A4L/A5/Q5 -2013 OBD × OBD/On-bench ×
A4L/A5/Q5 2013-2019 VVDI BCM2 Adapter × VVDI BCM2 Adapter ×
A6L/A7/A8 -2013 OBD Working Key OBD/On-bench Third Party Calculation
A6L/A7/A8 2013-2019 OBD Working Key VVDI BCM2 Adapter Third Party Calculation
VVDI BCM2 adapter can work with VVDI Key Tool Plus or VVDI2+VVDI Prog

1.VVDI Prog & VVDI2
Note: DO NOT use either VVDI2 or VVDI Prog to read BCM2, this function needs both.

vvdi prog & vvdi2

Main steps
1.Read Data1 file
2.Load Data1 file
3.Read Data2 file
4.Load Data2 file to save immo data file and service data file
5.Write service data to BCM2

Diagram path
Type – “4-IMMOBILIZER”>>Brand – “AUDI”>>Chip – “LOCK_BCM2-1(ADAPTER)”>> Connection diagram

Instruction path
VAG>> Key learn>>Fifth Immobilizer System-Locked BCM2 version>>Instruction

On VVDI Prog,
Select “DATA1” to read and save Data1 file.

Load Data1 file to perform step 1.

On VVDI Prog,
Select “DATA2” to read and save DATA2 file.

Load Data2 file to perform step 2.
During step2, you’ll get immo data and service data.

On VVDI Prog,
Select “Open” to load service data file, and select “SERVICE-DATA” to write it to BCM.
Writing success.

Restore BCM2 to vehicle and enter fifth immo system menu to generate dealer key.

2.VVDI Key Tool Plus


Main steps
1.Read basic module information
2.Read Immo data
3.Write Immo data

Instruction & diagram path
Immo programming>>Audi>>Select by type>>Fifth Immobilizer System>>Start Programming>> Read BCM2 Data>>Prog read – encrypted bcm2>>(Select vehicle type by BCM2 label)>> Adapter method>> Function introduction/ Connection diagram

Perform “Step 1 – Identify module information” to get basic info.

Perform “Step 2 – Read immo data” to get BCM2 Immo data.

Write Immo data back to BCM2 module.

Restore BCM2 to vehicle and enter fifth immo system menu to generate dealer key.


Audi 754J key can work with VVDI Audi BCM2 Adapter.
We also leave the link if you’re interested:

UK Professional OBD2 Tools Online Shop