Used for: Fog Light Bulb Rear, Back Up Reverse Light Bulb
Used for: Headlight Bulb High Beam and Low Beam(with HID headlights)
Used for: Turn Signal Light Bulb Front(with HID headlights)
Used for: Glove Box Light Bulb, Interior Door Light Bulb, Map Light Bulb, Reading Light Bulb Rear, Trunk or Cargo Area Light
Used for: Glove Box Light Bulb, Interior Door Light Bulb, Map Light Bulb, Reading Light Bulb Rear, Trunk or Cargo Area Light
This 2018 Audi Q3 bulb size page is designed to help you verify the correct bulb by lighting position, so you can match the right fit before ordering replacements. Because the Q3 can use different lighting setups depending on trim, market, and package, it is important to confirm the exact lamp location instead of assuming one bulb fits every version.
Use this page as a quick reference for exterior and interior lighting on the 2018 Audi Q3. You will find common bulb positions such as headlights, turn signals, tail lights, license plate lights, map lights, cargo lights, and more, which makes it easier to narrow down the correct bulb for a specific repair or upgrade.
Fitment can vary on the 2018 Audi Q3, especially between halogen and LED or HID-equipped models, so always compare your vehicle’s installed lighting before buying. Some positions listed here use LED modules rather than replaceable bulbs, while others use standard serviceable bulbs such as 921, 2825/98, 64132, or D5S depending on the configuration. If you are considering an aftermarket conversion, make sure the replacement is compatible with your housing, connector, and any vehicle lighting controls. The safest approach is to check the bulb already installed in the vehicle, confirm the socket style, and verify the trim or lighting package before purchase.
The 2018 Audi Q3 uses a 921 bulb for the back up reverse light.
The rear fog light bulb is listed as 921 on this page.
The glove box light uses a 2825 or 98 bulb.
The map light bulb is listed as 2825 or 98.
The trunk or cargo area light uses a 2825 or 98 bulb.
The interior door light bulb is listed as 2825 or 98.
The rear reading light bulb is listed as 2825 or 98.
No. Headlight bulb fitment depends on the lighting package. Models with LED headlights use LED lighting modules, while models with HID headlights use D5S for the low and high beam setup.
For models with LED headlights, the front turn signal light is listed as LED.
For models with HID headlights, the front turn signal light is listed as 64132.
This page lists the brake light bulb and tail light bulb as LED, which means the exact service method may differ from a traditional replaceable bulb. Check the installed unit before ordering parts.
Check your trim, lighting package, and the bulb already installed in the vehicle. The Q3 can vary by market and body style, so confirming the socket and lighting type helps avoid ordering the wrong part.
