Follow the instruction from the video below to find out how to reset service light/indicator on a VW Golf V (Mk5) 2004 – 2008:
STEP 1: press the “0.0” button from the right corner of the dashboard until you…
STEP 2: …turn the key on the second spot
STEP 3: then press the “minute” button (from the left side) one time
If you want to see if the operation was done successfully, you have to turn the key on the second spot and see if the message “service now” disappeared.