Audi Q5 2021 Bulb Size
Bulb size chart
This page helps you verify bulb sizes for the 2021 Audi Q5 by lighting position, so you can match the correct bulb to the correct lamp before you buy. Whether you are replacing an exterior signal, a cargo light, or an interior map light, checking the position-specific fitment is the safest way to avoid ordering the wrong part.
On the 2021 Audi Q5, many exterior and interior locations use LED lighting, while a few serviceable positions use bulbs such as 921, 194, H8 LED, and 12174NA. Because trim level, market, and lighting package can change the setup, use this page as a guide to confirm the bulb type for each location on your vehicle.
Fitment can vary on the 2021 Audi Q5 depending on trim, body style, and whether the vehicle has a halogen-style, LED, or upgraded lighting package. That matters especially for headlight-related parts and for turn signals or cornering lights that may differ between markets. If you are considering an aftermarket LED conversion, make sure the bulb base, connector, polarity, and available space all match the original housing. The best practice is to check the installed bulb before buying, especially for service items like the 921, 194, or 12174NA positions, since the same model year can still have different equipment from one Q5 to another.
FAQ
What bulb does the 2021 Audi Q5 use for the low beam headlight?
The bulb chart for this page lists the low beam headlight as LED, D5S. Always confirm the exact headlight setup on your Q5 before ordering, since lighting equipment can vary by market and package.
What bulb does the 2021 Audi Q5 use for the high beam headlight?
The high beam headlight is listed as LED, D5S on this page. If your Q5 has a different lighting package, verify the installed bulb and housing before purchase.
Which bulb fits the front turn signal on a 2021 Audi Q5?
The front turn signal bulb is listed as 12174NA. This is one of the positions where checking the installed bulb is especially helpful, because trim and regional equipment can affect fitment.
What bulb is used for the rear turn signal on the 2021 Audi Q5?
The rear turn signal is listed as LED. Since it is integrated into the rear lamp assembly on many Q5 configurations, confirm the exact lamp design on your vehicle before replacing parts.
What bulb size is used for the back up light on the 2021 Audi Q5?
The back up light bulb is listed as 921. This is a common service bulb, but you should still verify the installed bulb and socket style before buying replacements.
What bulb is used for the rear fog light on the 2021 Audi Q5?
The rear fog light bulb is listed as 921 on this page. If your vehicle is not equipped with a rear fog light in your market, that position may not be present.
What bulb fits the glove box light on the 2021 Audi Q5?
The glove box light bulb is listed as 194. This is a useful reference if you are replacing a small interior bulb and want a direct fit.
What bulb is listed for the cornering light on the 2021 Audi Q5?
The cornering light bulb is listed as H8 LED. Because cornering light equipment can vary, confirm the lamp type on your specific Q5 before ordering.
Are the interior lights on the 2021 Audi Q5 serviceable bulbs?
Yes, several interior positions are listed with LED bulbs, including the dome light, map light, vanity mirror light, trunk or cargo area light, interior door light, and stepwell light. Some of these may be integrated LED units rather than simple replaceable bulbs, so check the exact assembly.
Does the 2021 Audi Q5 use the same bulb in the license plate light and parking light?
The page lists both the license plate light and parking light as LED. Even when both are LED, the housing and replacement method can differ, so verify the specific location before ordering.
Can I upgrade the 2021 Audi Q5 from halogen to LED bulbs?
Some owners do use aftermarket LED conversions, but fitment depends on the socket, connector, heat management, and housing design. The safest approach is to match the original bulb type and confirm compatibility before making any upgrade.
How do I avoid buying the wrong bulb for my 2021 Audi Q5?
Use the bulb position on this page, compare it with the installed bulb in your vehicle, and check whether your Q5 has a different trim or lighting package. This is especially important for headlight, turn signal, and cornering light positions.