Audi A4 2002 Bulb Size
Bulb size chart
This page helps you verify the bulb sizes for the 2002 Audi A4 by lighting position, so you can match the correct replacement before you buy. Whether you are changing a headlight, interior lamp, or exterior signal bulb, checking the exact location on the car makes it easier to find the right fit.
The 2002 Audi A4 uses a mix of standard incandescent bulbs and HID low beam headlight bulbs, and some positions can vary by trim, market, or body style. Use the bulb chart on this page to confirm each socket by function, especially if your car has different lighting equipment than another A4 from the same year.
For best fitment, compare the bulb type on the page with the bulb currently installed in your car before ordering. Trim level, lighting package, and regional differences can change the application, and aftermarket LED replacements may fit physically but still behave differently from the original halogen or HID setup. That is especially important for fog lights, interior lamps, and any conversion from incandescent to LED, since polarity, heat, and beam pattern can affect performance. If you are unsure, remove one bulb first and check the base and markings so you can confirm the correct replacement before purchasing the rest.
FAQ
What low beam headlight bulb does a 2002 Audi A4 use?
The low beam headlight bulb listed for the 2002 Audi A4 is D1S.
What bulb fits the front turn signal on the outer side?
The front outer turn signal bulb is 2827.
What bulb fits the front inner turn signal?
The front inner turn signal bulb is 3457A.
What is the rear turn signal bulb size on this Audi A4?
The rear turn signal bulb is 7507.
Which bulb is used for the back up reverse light?
The back up reverse light bulb is 7506.
What bulb size is used for the brake light and tail light?
Both the brake light and tail light use 7528 bulbs on this page.
What bulb fits the rear side marker light?
The rear side marker light bulb is 7528.
What bulb is listed for the license plate light?
The license plate light bulb is 6418.
What bulb is used for the dome light and map light?
The dome light uses 6411 or 6428, and the map light uses 64111.
Are the fog light bulbs the same on every 2002 Audi A4?
Not always. The front fog light bulb listing shows H11 LED or H16 LED, and fitment can depend on trim and lighting package.
What interior bulbs are listed for this year A4?
Interior bulb positions on this page include glove box, interior door, stepwell, courtesy, vanity mirror, trunk or cargo area, and map light locations, with several using 2825, 98, 6418, 6411, 6428, or 64111 depending on the position.
Why should I check the installed bulb before ordering?
Because the 2002 Audi A4 can vary by market, trim, and body style, and the installed bulb is the best way to confirm the exact fit before you buy a replacement.