What Size Bulbs Does a 2006 Audi A4 Quattro Use?
Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.
Installation Difficulty
Hard (Tight clearances)
Est. Replacement Cost
$15 - $40 (Halogen) / $30+ (LED)
What Lighting System Does the 2006 Audi A4 Quattro Have?
The 2006 Audi A4 Quattro utilizes a refined lighting configuration featuring 10 distinct bulb positions. It features a comprehensive lighting system powered by a dual-bulb halogen configuration using separate H7 low beam and H9 high beam bulbs for precise light distribution. Note that Audi vehicles typically feature a CANbus electrical monitor that checks for specific bulb resistance.
LED Flicker Warning
This vehicle is known to use a CANbus system. Installing standard LEDs may cause flickering.
Can You Put LED Bulbs in a 2006 Audi A4 Quattro?
Upgrading to LED is one of the most effective ways to modernize your Audi's appearance and safety profile. We recommend starting your upgrade with the H7 low beams, as they see the most use. Adding a matching H9 LED kit later will complete the look and ensure consistent lighting performance. Because Audi utilizes a CANbus system, standard LED bulbs may cause "bulb out" errors on your dashboard. Always opt for "Error-Free" or CANbus-ready kits which include the necessary resistors. Don't forget the H11 fog lights; switching these to LED can dramatically improve your visibility in adverse weather.
2006 Audi A4 Quattro Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
| Low Beam | H7 | Buy H7 → |
| High Beam | H9 | Buy H9 → |
| Fog Light | H11 | Buy H11 → |
| Side Marker | 3457NA | Buy 3457NA → |
| Parking Light | 3457NA | Buy 3457NA → |
| Turn Signal Rear | 7507 | Buy 7507 → |
| Tail Light | 7528 | Buy 7528 → |
| Brake Light | 7225 | Buy 7225 → |
| Trunk Light | W5W | Buy W5W → |
| Door Light | W5W | Buy W5W → |
How do the 2006 Audi A4 Quattro's bulbs compare to other years?
Finding the best installation guide...