You can deactivate seat belt warning sound in most MQB and previous VAG cars. The instructions here are tested only on MQB platform. For previous models, the coding location maybe different but you can easily find it if you look for it in control module coding screen.

PLEASE NOTE THAT ALL CHANGES AND RESULTS ARE IN USER RESPONSIBILITY! DO IT AT YOUR OWN RISK!

PLEASE BACKUP AS INSTRUCTED BELOW!

You need VCDS, VCP, OBD Eleven or ODIS software and tools to modify codings and adaptations.

The screenshots and instructions shown here are for VCDS tool but you can also easily find same ways with other dignostic tools.

The function is controlled by instrument cluster. So open VCDS and click "Select" button in "Select Control Module" section:

 

 

When the modules screen are loaded, select "17 - Instruments":

 

 

Select "Coding - 07":

 

 

Click "Long Coding Helper". Please copy the "Curent Coding" value and save it in a Txt file as a backup.

Instead of any failure, you can always replace this code to return default settings.

 

 

In "Byte 0, Bit 2-4", select "Seat Belt Warning Inactive" 

If your VCDS does not show a dropdown menu, just deactivate "Byte 0, Bit 2" 

 

You are done. You can check the result. No more annoying seat belt warning.

But please continue to use Seat Belt for your own safety :)