Audi Workshop Service and Repair Manuals

T 2an  -  Double Connector, black, near heated oxygen sensor (HO25)
T 4s  -  4-Pin Connector, green, near oxygen sensor, behind Three Way Catalytic Converter (TWC)
T 4t  -  4-Pin Connector, black, near oxygen sensor 2, behind Three Way Catalytic Converter (TWC)

GROUNDS CONNECTIONS

200

 -  Ground connection (shielding), in engine compartment wiring harness

D80  -  Plus connection (87a) - for EVAP system solenoid, in engine compartment wiring harness