VWNOTE: Click on individual X-Gauges for more detailed information and important gauge-specific notes.
Below are two XGauges for VWs that use the ISO protocol. The ISO protocol was used in VWs from 1996 t0 2003. In 2003 some VWs switched to the CAN protocol, so there is a slight chance from 2003 to 2008 your VW will not use the ISO protocol. In 2008 ALL VWs use the CAN protocol, so these codes will not apply to 2008 and newer VWs.