Bulb size & fitment reference

Audi A3
Bulb Size Guide

Get the bulb-size answer first, then check factory-system differences and position-specific notes before buying.

Select Your Vehicle

Quick Answer for 2024 Audi A3

Start with the positions you’re most likely to replace. Full fitment details are below.

Headlight High & Low Beam

Cornering Light

Dome Light

T10 / 194 / 168

Shop this position →

Full Bulb Fitment by Lighting Position

Find the bulb size for each lighting position and check any fitment notes before ordering.

Audi A3 (2023–2024) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Headlight High & Low BeamD1SHIDShop position →
Fog LightH11Shop position →
Cornering LightH11HIDShop position →
Dome LightT10 / 194 / 168Shop position →
Map LightT10 / 194 / 168Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Vanity Mirror Light36MMShop position →
Glove Box LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Audi A3 (2020) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Headlight High BeamH11Shop position →
Rear Turn Signal912 / 921 / T15Shop position →
Brake Light7443Shop position →
Tail Light912 / 921 / T15Shop position →
Dome LightT10 / 194 / 168Shop position →
Map LightT10 / 194 / 168Shop position →
Glove Box LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Audi A3 (2018) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Headlight Low BeamH7Halogen CapsuleShop position →
Cornering LightH11HIDShop position →
Rear Turn Signal912 / 921 / T15Shop position →
Brake Light7443Shop position →
Tail Light7443Shop position →
Dome LightT10 / 194 / 168Shop position →
Map LightT10 / 194 / 168Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Vanity Mirror Light36MMShop position →
Glove Box LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
Luggage Compartment LightT10 / 194 / 168Shop position →
View Fitment Options →

Audi A3 (2015–2016) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Headlight High BeamH15Halogen CapsuleShop position →
Headlight High & Low BeamD3SHIDShop position →
Headlight Low BeamH7Halogen CapsuleShop position →
Fog LightH11Shop position →
Daytime Running LightH15Halogen CapsuleShop position →
Cornering LightH11HIDShop position →
Parking LightT10 / 194 / 168Halogen CapsuleShop position →
Brake Light7443Halogen CapsuleShop position →
Tail Light912 / 921 / T15Halogen CapsuleShop position →
Dome LightT10 / 194 / 168Shop position →
Map LightT10 / 194 / 168Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Vanity Mirror Light36MMShop position →
Glove Box LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Audi A3 (2011–2013) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Headlight High BeamH7Shop position →
Headlight Low BeamD3SHIDShop position →
Headlight Low BeamH7Halogen CapsuleShop position →
Fog LightH11Shop position →
Daytime Running Light5202Halogen CapsuleShop position →
Parking LightT10 / 194 / 168Halogen CapsuleShop position →
Rear Turn SignalBAU15SShop position →
Brake Light1156 / BA15SShop position →
Tail Light1156 / BA15SShop position →
Reverse Light912 / 921 / T15Shop position →
License Plate Light36MMShop position →
Front Side Marker LightT10 / 194 / 168Halogen CapsuleShop position →
Side Marker LightT10 / 194 / 168Shop position →
Vanity Mirror Light36MMShop position →
Glove Box LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →
Fitment Reminder
Bulb size can vary by factory setup. If you're unsure which option applies to your vehicle, confirm your current bulb or select your configuration on the product page.