Rear Fog Bulb fits Audi Q7 H21W Halogen lamp/light/foglight BAY9s 21W
12V H21W ECE-R 37 bayonet cap BAY 9 s. One Rear Foglight Bulb for Audi Q7. Once fitted wipe glass part clean with a cloth to remove 'finger grease' as grease will shorten the life of the bulb!