Possible Issues, all versions:

• We have some reports indicating that some VAG-COM versions do not get along with the Zone Alarm firewall application.  If you are using Zone Alarm, turn it off while using VAG-COM. 

• Virus Scanners:  Many virus scanners will adversely affect performance when logging data and performing other tasks which require VAG-COM to write data to the disk.   If in doubt, turn off virus scanners while using VAG-COM -- your PC cannot get a virus from your car.

• Windows 2000:  Service Pack 4 is strongly recommended and may be required when using USB interfaces.

Car-Model Specific Issues:

Volkswagen:

• 2000-2001 Golf/GTI/Jetta/Beetle Airbags (important!)
• 1997 Passat B5 Central Convenience System
• 1990-1992 2.0 16V Engines
• 1990-1993 Cabrio/Cabriolet Airbags
• 1995-2000 Sharan Electrical Controller

Audi:

• 2003+ 01J (CVT) Transmissions
• Concert Radio & Symphony Radios
• 1996-1997 2.8L 12V V6 with Hitachi ECU
• 1995-1997 100/A6/S6 (instrument cluster)
• 1992-1994 2.6L V6 Engines

Seat:

• 2008+ Seat Ibiza 'Interface not found'

All: 

• 1991-1994 TDI Engines:  We have a number of reports indicating that VAG-COM doesn't work with these using a "dumb" Interface. For these vehicles, you will need to use one of our HEX Interfaces. 

• If when you try to connect to a control module, you get the error message "Can't Synch Baud Rate", go to the Options Screen and try setting the Start Baud to 9600.  If 9600 doesn't work, also try 4800 and 1200.    Turn the car's ignition OFF and back ON after each failed attempt to connect!

VAG-COM definitely won't work with this vehicle!