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 TypeShop
2023-202412174NACheck Price
202112174SVCheck Price
2018-201912174NA (With HID Headlamps)Check Price
2010-2012H21W (With Halogen Capsule Headlamps)Check Price
2007-2009H21WCheck Price

Rear Turn Signal

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

YearsUS TypeEU TypeShop
20187507PY21WCheck Price
2007-201575067506Check Price

Turn Signal

YearsUS TypeEU TypeShop
2007-20091156P21WCheck Price

Bulb Specifications

Description Type Shop
OEM part number. Natural amber glass variant. 12V.12174NACheck Price
Philips SilverVision part number. Enhanced coating halogen bulb. 12V.12174SVCheck Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with BAY9s base. 12V, 21W.H21WCheck Price
ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W.PY21WCheck Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.P21WCheck Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1156Check Price

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