Audi A4 2013 Bulb Size
Bulb size chart
This 2013 Audi A4 bulb size guide helps you verify the correct bulbs by lighting position, so you can replace the right part the first time. Because Audi used different lighting setups depending on trim, body style, and market, the bulb list on this page is organized by location rather than by a single universal fitment.
Use this page to check exterior and interior bulb sizes for the 2013 Audi A4, including headlights, tail lamps, license plate lights, cabin lights, and cargo-area bulbs. It is especially useful when comparing HID and halogen-equipped cars, since several rear lamp and brake light bulb sizes change with the headlight package.
Fitment can vary on the 2013 Audi A4 depending on trim level, lighting package, and whether the car has HID or halogen headlights, so always match the bulb position to your exact vehicle. LED conversions may also affect compatibility, especially for turn signals, parking lights, and other monitored circuits that can trigger bulb-out warnings or require resistors or coded changes. Before ordering, check the bulb already installed in the car whenever possible, since aftermarket replacements and prior repairs can change what is actually in the socket.
FAQ
What bulb does the 2013 Audi A4 use for the low and high beams?
The 2013 Audi A4 with HID headlights uses a D3S bulb for both the high beam and low beam positions.
Which bulb is used for the front turn signal on a 2013 Audi A4?
The front turn signal bulb is listed as 64132 for the 2013 Audi A4.
What is the reverse light bulb size on this model?
The back up reverse light bulb is 921 on the 2013 Audi A4.
Do halogen and HID headlight cars use the same rear bulbs?
No. Rear bulb sizes can differ by headlight package. For HID-equipped cars, the brake, tail, and rear turn signal bulbs are listed separately from halogen-equipped cars.
What bulbs are listed for the rear turn signal on halogen headlight models?
For 2013 Audi A4 models with halogen headlights, the rear turn signal bulb is 7506.
What bulbs are listed for the brake and tail lights on halogen headlight models?
For halogen headlight models, the brake light bulb is 7506R and the tail light bulb is also 7506R.
Are the license plate lights LED on the 2013 Audi A4?
Yes. The license plate light bulb is listed as LED for this model year.
What interior bulb sizes are used in the cabin?
Interior bulb sizes include 2825 or 98 for the glove box, trunk or cargo area, map lights, interior door lights, and courtesy lights. The dome light uses 6411 or 6428, and the vanity mirror light uses 6418.
Does the 2013 Audi A4 use LED bulbs for daytime running lights and parking lights?
The bulb chart lists LED for the daytime running light, parking light, side marker lights, stepwell light, and several other exterior positions on applicable versions.
Can trim or body style change the bulb size on a 2013 Audi A4?
Yes. Trim, lighting package, and body style can affect bulb fitment, so it is important to confirm the exact lighting position on your specific A4 before buying replacements.
Should I check the old bulb before ordering a replacement?
Yes. Checking the installed bulb is the safest way to confirm fitment, especially if the car has been modified, repaired, or converted to aftermarket lighting.
Are the brake and tail light bulbs the same on every 2013 Audi A4?
Not always. The bulb type depends on whether the car has HID headlights or halogen headlights, so you should match the bulb to the exact lighting setup on the vehicle.