Run Autoscan and VCDS will automatically scan all available modules on the car and show you a report with any fault codes stored in each module.

VCDS screen showing full autoscan results
Modules with faults are clearly highlighted in red.

Buying cars? run this before you value and save yourself any nasty surprises. Servicing a car?, run this before you start. You’ll have a good indication of the state of the car and some backup in case a fault develops that didn’t show up before.

Selling a car? Read the codes before it goes, so you’ll have peace of mind that there aren’t any developing problems that will bring the new owner back complaining.