2003 Audi A6 Avant Bulb Size Chart

Bulb sizes may vary by trim, factory lighting package, region, production date, and previous modifications. Verify the bulb number on your existing bulb before buying.

Last database update: May 2026. Manual review status: Not yet manually reviewed.

Verify before buying: check the bulb number printed on your existing bulb, confirm your trim and factory lighting package, and review the seller's fitment notes.

Disclosure: We may earn a commission from links marked Affiliate. Unmarked retailer links may be plain search links. Always verify bulb fitment before purchasing.

2003 Audi A6 Avant Bulb Size Chart

Position	Bulb Code	Aliases	Trim / Package	Factory Type	Confidence	Review	Notes	Shop
Low Beam	D2S	—	Factory HID package	HID	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon eBay
High Beam	H7	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon eBay
Fog Light	H3	—	If equipped / package-dependent	Halogen	High	Pending	If equipped; fog light packages can vary by trim.	Amazon eBay
Brake Light	2723	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Dome Light	6411	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Turn Signal Front	2827	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Side Marker	7528	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
License Plate	6418	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Map Light	47830	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Parking Light	2825	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Turn Signal Rear	7506	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Reverse Light	7506	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Trunk Light	6486X	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Tail Light	7528	—	Standard listing	Halogen	High	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon
Door Light	W5W	—	Standard listing	Halogen	Medium	Pending	Verify trim, factory lighting package, and the bulb number on the existing bulb.	Amazon

LED Flicker Warning

Some Audi vehicles may require a CANbus decoder or anti-flicker harness when installing LED replacements.

Check decoder options.

2003 Audi A6 Avant Fitment Notes

Our database shows the same listed bulb sizes for the Audi A6 Avant across the 1999 to 2004 range. Still verify your trim, lighting package, and the bulb number in the housing before buying.

Known fitment limitations

factory HID or LED packages may use different parts
fog lights may depend on equipment package
aftermarket headlight assemblies may use different bulbs
regional models and production-date splits may differ

See an incorrect bulb size? Submit a correction.

How do the 2003 Audi A6 Avant's bulbs compare to other years?

The 2003 Audi A6 Avant uses the same bulbs as the 2002 model.

The 2004 model continues with the same bulb sizes.

This bulb configuration covers the 2002–2004 model years. ← 2002 2004 →

Finding the best installation guide...

Other A6 Avant Years

2004 2002 2001 2000 1999

Other Vehicles That Use D2S Bulbs

2019 Infiniti QX60 2019 Mitsubishi Outlander Sport 2019 Mitsubishi RVR 2019 Nissan 370Z 2018 Honda Odyssey 2017 Infiniti QX50

Frequently Asked Questions

Our database lists D2S for the 2003 Audi A6 Avant low beam headlights. Verify the bulb number on your existing bulb and confirm your trim or factory lighting package before buying.

Our database lists H7 for the 2003 Audi A6 Avant high beam position. Some vehicles vary by trim, lighting package, or previous housing changes.

Dim headlights on a 2003 Audi A6 Avant can come from aging halogen bulbs, cloudy lenses, weak electrical connections, or an incorrect bulb. Confirm the listed D2S size against the bulb in the housing before choosing a replacement or upgrade.

Our database lists H3 for the 2003 Audi A6 Avant fog light position. Fog lights are often package-dependent, so verify that your vehicle is equipped with factory fog lights before ordering.

The 2003 Audi A6 Avant uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

LED upgrades are available for many D2S applications, but fitment, beam pattern, dashboard warnings, and road-use legality can vary. Use products that list your exact bulb family, such as D2S, and verify the factory housing before buying.

Our database has a fog light entry for the 2003 Audi A6 Avant: H3. Fog lights may still depend on trim or equipment package.

No — the 2003 Audi A6 Avant uses the same bulb sizes as the 2002 model. This configuration has been consistent across the 2002–2004 generation.

Access varies by engine bay layout and headlight housing. Before disassembly, confirm the listed D2S low beam size on the existing bulb or owner's manual, then follow the service procedure for your exact trim.

Rules for LED headlight retrofits vary by location and by housing type. Avoid products that create glare or lack road-use compliance claims, and check local requirements before using an LED conversion on public roads.

Replacement cost depends on bulb technology, brand, and labor access. HID D2S capsules usually cost more than common halogen bulbs. Check seller fitment notes before comparing prices.

Halogen bulbs and LED replacements differ in output, heat behavior, beam pattern, and electronics. A correct bulb code does not guarantee a correct LED beam pattern, so verify physical fit and seller compatibility notes for the 2003 Audi A6 Avant.

2003 Audi A6 Avant Bulb Size Chart

2003 Audi A6 Avant Bulb Size Chart

2003 Audi A6 Avant Fitment Notes

How do the 2003 Audi A6 Avant's bulbs compare to other years?

Other A6 Avant Years

More from Audi

Other Vehicles That Use D2S Bulbs

Frequently Asked Questions

What is the low beam headlight bulb size for a 2003 Audi A6 Avant?

What is the high beam headlight bulb size for a 2003 Audi A6 Avant?

Why are my 2003 Audi A6 Avant headlights dim?

Which bulb fits the 2003 Audi A6 Avant fog light?

Is the 2003 Audi A6 Avant single or dual beam?

Can I install LED bulbs on my 2003 Audi A6 Avant?

Does the 2003 Audi A6 Avant have fog lights?

Did the 2003 Audi A6 Avant change headlight bulb sizes from the previous year?

How do I change the headlight on a 2003 Audi A6 Avant?

Are LED headlights legal for a 2003 Audi A6 Avant?

How much does it cost to replace 2003 Audi A6 Avant headlights?

What is the difference between halogen and LED for a 2003 Audi A6 Avant?