How to Read BMW ECU data With Xhorse VVDI Prog

How to Read BMW ECU data With Xhorse VVDI Prog

This post step by step show VVDI Prog read out BMW ECU data.


Tools to use:

Xhorse VVDI Prog

ECU reflash cable

One computer

USB cable

Step-by-step Instruction

Connect VVDI PRO with BMW ECU

Open VVDI PRO software, manually select BMW model and ECU type, then click “Wiring diagram”.

For example:

Type: 3-ECU


Device: MEVD1724(N20)

Chassiss No. F10/F11/F12

Then you will see an ECU model reading “Cutting a 15*15mm window” and prompt it is NO.2 wiring port

Drag the mouse you will see it reads “Applies to the following engine models: MEVD1725(N13), MEVD1724(N20), S63TU, N63TU”, then a wiring diagram pops up.

Follow the pin number on the wiring diagram to wire the ECU reflash cable with BMW ECU.

After complete the wiring, in the BMW ECU, find out the metal point as follows.

Connect this boot line to this metal point.

You will see VVDIprog yellow indicator blink

Back to VVDI prog V1.2.3, select “Create New” and click “Read” and you will see the process of checking VVDIProg, and meanwhile VVDIprog yellow indicator keep blink.


After complete reading the data, save data.


Note: when BMW CAS4+ all key lost, we read out CAS4+ data and BMW engine data, when it prompts it needs to check ISO Number, we can load engine EP data, then we can generate dealer key.