VAG RB4 / RB8 OBD Cluster License

The RB4 RB8 OBD License provides advanced programming and repair functions
for supported VAG RB4 and RB8 instrument clusters via the OBD port.
It enables secure immobilizer access and cluster adaptation without disassembly.

Cluster Programming via OBD

This license allows direct OBD communication with both crypted and non-encrypted RB4 and RB8 clusters.
Therefore, technicians can perform immobilizer operations and cluster service tasks
without removing the unit from the vehicle.
Additionally, OBD-level access reduces labor time and minimizes installation risks.

Guaranteed Functionality

• Read and Write IMMO Data by OBD: Supports crypted and non-encrypted clusters
• Fix “DEF” Error via OBD: Restore normal cluster operation without disassembly
• Odometer Value Change: Adjust mileage during cluster repair or replacement
• Key Learning: Adapt new or existing keys to the immobilizer system
• Cluster Cloning: OBD cluster cloning functionality

The RB4 RB8 OBD License is designed for professional workshop use.
However, compatibility depends on cluster software version and vehicle configuration.
As a result, some hardware revisions may require verification before service.

Hardware Requirement

A PolDiag OBD Interface is required to operate this license.
Without compatible hardware, OBD communication cannot be established.

For compatible hardware and available extensions, refer to
PolDiag OBD Interface options

The primary and guaranteed function of this license is OBD access to supported RB4 and RB8 clusters
for immobilizer data reading, writing, and adaptation.
All additional functions are secondary and not guaranteed.