Audi S6 2018 Bulb Size
Bulb size chart
This page helps you verify the bulb size for the 2018 Audi S6 by lighting position, so you can match the correct replacement to the exact lamp on the car. The S6 uses a mix of LED exterior and interior lighting, and the correct fit can depend on where the bulb is located.
Use the chart on this page to check common locations such as the headlights, brake lights, turn signals, license plate lights, dome lights, map lights, and cargo-area lighting. Because lighting equipment can vary by market and body style, it is smart to confirm the position before ordering any replacement bulb.
For the 2018 Audi S6, trim level, lighting package, and regional market can change the bulb setup, especially on exterior lamps and interior convenience lights. Some positions are listed as LED, while others may use a conventional bulb such as 2825 or 98 for glove box and interior door lighting. If your car has been modified with aftermarket LED conversions, the installed bulb may not match the original factory specification, so checking the actual bulb before purchase is always the safest approach. This is especially important when replacing halogen-to-LED upgrades, since fitment, polarity, and warning messages can differ from the stock setup.
FAQ
What bulb does the 2018 Audi S6 use for the low beam and high beam headlights?
On this page, the headlight high beam and low beam are listed as LED for the 2018 Audi S6. Because the headlamp design can vary by market and package, confirm the exact lamp assembly before replacing anything.
Are the brake lights on the 2018 Audi S6 LED?
Yes. The brake light bulb position is listed as LED for the 2018 Audi S6. If you are replacing a rear lamp assembly, make sure you are matching the correct side and function, not just the bulb type.
What is the rear turn signal bulb size for the 2018 Audi S6?
The rear turn signal light bulb is listed as LED. If the signal is built into the tail lamp assembly, you may need to replace the entire LED module or lamp unit rather than a loose bulb.
Does the 2018 Audi S6 use LED license plate lights?
Yes, the license plate light bulb is listed as LED. If one side is out, check both housings and the connector before buying parts, since the issue may be the lamp module rather than the light source itself.
What bulb is used for the back up reverse light on the 2018 Audi S6?
The back up reverse light bulb is listed as LED. On many Audi applications, reverse lighting is integrated into the rear lamp assembly, so fitment can depend on the exact trim and body style.
Are the dome light and map light bulbs LED on this model year?
Yes. The dome light bulb and map light bulb are both listed as LED for the 2018 Audi S6. Interior LED lighting usually lasts a long time, but if a lamp fails, check the complete fixture and not only the bulb.
What bulb size is used for the glove box light on the 2018 Audi S6?
The glove box light bulb is listed as 2825, 98. These are the bulb types shown for this position on the page, so verify the installed bulb if your car has been changed or repaired before.
What bulb size is used for the interior door light on the 2018 Audi S6?
The interior door light bulb is listed as 2825, 98. Since interior trim can differ by package, it is a good idea to compare the existing bulb with the chart before ordering.
Do all 2018 Audi S6 cars use the same bulb sizes?
Not always. Trim and lighting package can vary by market and body style, which can change the bulb setup for certain exterior and interior positions. Always match the bulb to the exact location on your vehicle.
Can I convert my 2018 Audi S6 bulbs to aftermarket LED replacements?
Yes, but fitment can be more complicated than a direct bulb swap. Aftermarket LED conversions may require the correct base, polarity, and sometimes error-free components, so check compatibility carefully before buying.
What should I check before ordering replacement bulbs for my 2018 Audi S6?
Check the exact lighting position, confirm whether the lamp is LED or a replaceable bulb, and compare the installed bulb to the chart. This is the best way to avoid ordering the wrong part for a specific trim or market version.
Why does the bulb chart list some lights as LED and others as specific bulb numbers?
That usually means some lighting positions are factory LED modules, while others use replaceable incandescent-style bulbs such as 2825 or 98. The chart reflects the bulb type by location so you can verify fitment more easily.