Audi A4 2017 Bulb Size
Bulb size chart
This 2017 Audi A4 bulb size guide helps you verify the correct bulbs by lighting position, so you can match the right part to the right socket before you buy. Because Audi used different lighting setups depending on trim, market, and package, checking the location on the vehicle is the safest way to confirm fitment.
For the 2017 Audi A4, many exterior and interior positions use LED lighting, while a few locations may still use specific halogen-style bulbs or HID-related parts depending on equipment. Use this page to compare the headlight, brake, turn signal, reverse, license plate, and cabin light positions for a more accurate replacement search.
Fitment can vary a lot on the 2017 Audi A4 based on body style, trim level, lighting package, and whether the car came with halogen, HID, or LED headlights. That means two A4s from the same year may not use the same bulb in every location. If you are considering an aftermarket conversion, make sure the bulb type, connector, and housing are compatible, especially for headlight and turn signal applications. The best practice is to inspect the installed bulb before ordering, since the physical bulb code on the old part is the most reliable confirmation when the catalog listing is unclear.
FAQ
Does every 2017 Audi A4 use the same bulb sizes?
No. The 2017 Audi A4 can differ by trim, lighting package, market, and body style. Exterior and interior bulb fitment may change depending on whether the car has LED, HID, or halogen equipment.
How do I confirm the correct bulb for my 2017 Audi A4?
Match the bulb by lighting position first, then compare the installed bulb type on the vehicle. If the car already has the bulb removed, check the old part number or socket style before buying a replacement.
What bulb type is listed for the low beam on this page?
The low beam is listed as LED for the 2017 Audi A4 on this page. Some configurations may use different headlight systems, so verify your exact headlight setup before ordering.
What bulb type is listed for the high beam on this page?
The high beam is listed as LED for this page. If your A4 has a different headlight package, the bulb arrangement may vary, so check the vehicle’s installed lighting system.
Does the 2017 Audi A4 use the same front turn signal bulb in every headlight setup?
No. Front turn signal fitment differs by headlight type. This page lists a front turn signal bulb for LED headlights and a separate 64132 bulb for vehicles with HID headlights.
What bulb is used for the glove box light on the 2017 Audi A4?
The glove box light bulb is listed as 2821. This is one of the few positions on the page with a specific bulb number rather than an LED-only description.
Are the brake lights and tail lights LED on the 2017 Audi A4?
Yes, the page lists both the brake light bulb and tail light bulb as LED for the 2017 Audi A4. Always confirm the exact rear lamp design on your car before replacing parts.
What should I know about the license plate lights on this model?
The license plate light bulbs are listed as LED. If you are replacing them, make sure the new bulb or module matches the housing style and connector used on your A4.
Can I swap LED bulbs for aftermarket replacements on the 2017 Audi A4?
Yes, but compatibility matters. Aftermarket LED replacements should match the original bulb position, fit the socket correctly, and work with the car’s electronics without causing warnings or flicker.
Why is it important to check the installed bulb before purchase?
Because the 2017 Audi A4 may have different lighting packages, the installed bulb is the most reliable reference. Checking it helps avoid ordering the wrong part for your specific trim or market.
What does the page help me do besides listing bulb sizes?
It helps you verify bulb sizes by lighting position, which makes it easier to identify the correct replacement for headlights, signals, interior lamps, reverse lights, and other locations on the 2017 Audi A4.
Do interior bulbs on the 2017 Audi A4 all use the same part number?
No. Interior lighting positions such as dome, map, vanity mirror, trunk or cargo area, door, stepwell, and glove box can use different bulb types or modules, so each location should be checked individually.