Audi Q7 Turn Signal Bulb Size

The Audi Q7 turn signal requires a P21W bulb size for proper installation and function within the lighting assembly. Data for the specified component covers the range from 2007 to 2009.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Turn Signal

YearsBulb Size
2023-202412174NA
202112174SV
2018-201912174NA (With HID Headlamps)
2010-2012H21W (With Halogen Capsule Headlamps)
2007-2009H21W

Rear Turn Signal

YearsBulb Size
2018PY21W
2007-20157506

Turn Signal

YearsBulb Size
2007-2009P21W

Bulb Specifications

Description Bulb Size
OEM part number. Natural amber glass variant. 12V.12174NA
Philips SilverVision part number. Enhanced coating halogen bulb. 12V.12174SV
ECE standard (Europe & worldwide). Single-filament signalling bulb with BAY9s base. 12V, 21W.H21W
ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W.PY21W
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.P21W

Other Locations