90 Quattro 20V (Canada) L5-2309cc 2.3L DOHC (7A) (1989)
Emissions Maintenance Light Reset Switch/Connector: Locations
OXS Indicator Lamp:
Fig. 4 Instrument Cluster OXS Tab Location
It will be necessary to remove instrument cluster upper cover, break plastic tab off back of instrument cluster, insert a suitable screwdriver in opening
and depress elapsed mileage reset button.