Audi A4 2019 Bulb Size
Bulb size chart
This page helps you verify bulb sizes for the 2019 Audi A4 by lighting position, so you can match the correct bulb to the right part of the car. Whether you are replacing an exterior lamp or an interior light, checking the position first makes it easier to avoid buying the wrong fitment.
The 2019 Audi A4 uses a mix of LED lighting and a few specific bulb types depending on trim, market, and headlight package. Use this guide to compare the bulb chart by location, including brake lights, reverse lights, license plate lights, interior lamps, and headlight-related bulbs for LED or HID-equipped models.
Fitment can vary on the 2019 Audi A4 based on trim, lighting package, body style, and regional equipment, so always confirm what is installed on your car before ordering. Some cars use full LED lighting in many positions, while others may have HID or different front turn signal and headlight setups. If you are considering an aftermarket conversion, make sure the bulb, connector, and housing are compatible, and remember that a conversion may not work the same as factory equipment. The safest approach is to inspect the existing bulb or assembly before purchase, especially for items like the glove box bulb, front turn signal bulb, or headlight bulbs where the exact setup can differ.
FAQ
Does the 2019 Audi A4 use LED bulbs for most exterior lights?
Many 2019 Audi A4 lighting positions are listed as LED, including brake lights, tail lights, daytime running lights, license plate lights, and several interior lamps. However, some positions can differ by trim or headlight package, so it is important to check the exact configuration on the vehicle.
How do I know whether my 2019 Audi A4 has LED headlights or HID headlights?
The front headlight package determines the bulb type. This page lists separate fitment for LED headlights and HID headlights, so you should confirm which setup your car has before ordering any headlight or front turn signal bulb.
What bulb size is used for the glove box light on a 2019 Audi A4?
The glove box light bulb is listed as 2821 for the 2019 Audi A4.
What bulb size is used for the front turn signal on HID headlight models?
For 2019 Audi A4 models with HID headlights, the front turn signal light bulb is listed as 64132.
What bulb type is used for the headlight high beam and low beam on HID headlight models?
For 2019 Audi A4 models with HID headlights, the headlight bulb high beam and low beam is listed as D5S.
Are the rear turn signal bulbs on the 2019 Audi A4 LED?
Yes, the rear turn signal light bulb is listed as LED for the 2019 Audi A4.
What should I check before replacing a reverse light bulb on this car?
First confirm whether your 2019 Audi A4 uses the listed LED reverse light setup on your specific trim and market. Then compare the bulb or lamp assembly on the car before ordering, since some lighting parts are integrated differently depending on equipment.
Can I replace a factory LED bulb with an aftermarket LED upgrade?
In many cases the lighting on the 2019 Audi A4 is already LED, so there may not be a simple bulb swap. If you are changing a non-LED position or using an aftermarket conversion, verify connector style, polarity, fitment, and any warning light or compatibility issues.
Why do some bulb sizes vary on the same model year?
The 2019 Audi A4 can vary by market, trim, and lighting package. That is why this page separates bulbs by position and also notes LED, HID, and specific bulb codes where available.
Do I need to remove the old bulb before buying a replacement?
It is strongly recommended. Checking the installed bulb or the lamp assembly is the best way to confirm the exact fitment, especially for positions that may differ between LED headlights, HID headlights, and different body styles.
Which interior bulbs are listed for the 2019 Audi A4?
This page includes LED listings for vanity mirror, trunk or cargo area, dome, map, interior door, and stepwell lights, plus the glove box bulb listed as 2821.
Is this bulb guide enough for every 2019 Audi A4 in every country?
It is a strong reference, but not every market is identical. Trim and lighting package can vary by market and body style, so it is still best to confirm the actual bulb installed on your specific car before purchase.