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Audi Light Bulb Size Guide
Complete bulb size reference for all Audi models from 1969 to 2020. Find the exact headlight, fog light, and tail light bulb sizes for 571 vehicles across 70 models.
Audi has 571 vehicles in our database spanning 1969 to 2020. Newer Audi models are increasingly equipped with OEM LED headlights (9% of vehicles in our database). Popular models include the A4, A6 Quattro and A6.
Year Range
1969 – 2020
571 total vehiclesModels Covered
70 models
Most popular: A4OEM LED
9% of vehicles
Factory LED equippedCommon Audi Bulb Types
| Position | Bulb Type | Vehicles | Shop |
|---|---|---|---|
| Door Light | W5W | 273 vehicles | Check Price |
| Reverse Light | 921 | 183 vehicles | Check Price |
| Brake Light | LED Bulb | 178 vehicles | Check Price |
| Tail Light | 7528 | 172 vehicles | Check Price |
| Trunk Light | 2825 | 136 vehicles | Check Price |
| Turn Signal Rear | LED Bulb | 127 vehicles | Check Price |
| Dome Light | 6411 | 122 vehicles | Check Price |
| Trunk Light | W5W | 120 vehicles | Check Price |
| Parking Light | LED Bulb | 118 vehicles | Check Price |
| Brake Light | 7528 | 116 vehicles | Check Price |
CANbus System Detected
Audi vehicles typically use a CANbus electrical system. When upgrading to LED bulbs, you may need anti-flicker decoders to prevent dashboard warnings or bulb flickering.
Browse Audi Models
Frequently Asked Questions
Audi vehicles commonly use bulb types including W5W, 921, LED Bulb, 7528, 2825. The exact size varies by model and year. Select your specific model below to find the correct bulb size.
We cover 70 Audi models including 100, 100 Quattro, 100 Series, 200, 200 Quattro, 4000 Quattro, 5000, 5000 Quattro, 80, 80 Quattro and more. Each model page has a year-by-year bulb size chart covering every position — low beam, high beam, fog light, turn signal, and brake light.
Yes, Audi vehicles use a CANbus electrical system that monitors bulb resistance. Standard LED bulbs draw less power than halogens, which the system may interpret as a burned-out bulb, triggering a dashboard warning or causing flickering. You'll need a CANbus-compatible LED kit or an anti-flicker decoder harness.
Our database covers Audi vehicles from 1969 to 2020, with 571 total entries across 70 models. About 9% of Audi vehicles in our database have OEM LED headlights from the factory.
Select your Audi model from the list below, then choose your model year. You'll get a complete chart of every bulb position with the correct size and a direct link to purchase on Amazon.