1998 Audi A4 Bulb Sizes

Quick answer: the 1998 Audi A4 uses D2S low beams, H1 fog lights and 7528 brake lights.

1998 Audi A4 bulb size chart

Position Bulb size (tap to shop)
Fog Light Bulb Front H1
Headlight Bulb Low Beam D2S
Center High Mount Stop Light Bulb 2723
Brake Light Bulb 7528
License Plate Light Bulb 6418
Tail Light Bulb 7528
Turn Signal Light Bulb Rear 7506
Back Up Reverse Light Bulb 7506
Side Marker Light Bulb Front 2357A
Side Marker Light Bulb Rear 7528
Turn Signal Light Bulb Front Inner 2357A
Parking Light Bulb(Base) 2357A
Parking Light Bulb(Avant, with HID headlights) 2825
Parking Light Bulb(Avant, with HID headlights) 98
Turn Signal Light Bulb Front Outer(Base) 2825
Turn Signal Light Bulb Front Outer(Base) 98
Turn Signal Light Bulb Front Outer(Avant) 2827
Glove Box Light Bulb 6418
Dome Light Bulb 6411
Dome Light Bulb 6428
Engine Compartment Light Bulb 6411
Engine Compartment Light Bulb 6428
Trunk or Cargo Area Light(Compare to original - Option 1) 194
Trunk or Cargo Area Light(Compare to original - Option 1) 7441
Courtesy Light Bulb(Avant) 6418
Courtesy Light Bulb(Base) 2825
Courtesy Light Bulb(Base) 98
Trunk or Cargo Area Light(Base) 6418
Trunk or Cargo Area Light(Avant, Compare to original - Option 2) 6486X
Map Light Bulb(Avant) 2825
Map Light Bulb(Avant) 98
Map Light Bulb(Base) 6418

Tap any bulb size to see it on Amazon. Trims and mid-year changes can differ, so pull the old bulb and match the number on its base before you order.

Which bulb should I buy?

  • Just need it working again? Buy the standard halogen in the same size. It's cheap, it's legal everywhere, and it takes five minutes.
  • Want to see better at night without messing with anything? Step up to a brighter halogen. Same plug, more light, no wiring.
  • Want the white, modern look? Go LED. Great for fog, reverse, plate and interior lights. For headlights, LED bulbs in a housing built for halogen can throw glare, so aim them after you install and check your state's rules before running them on the street.

Our picks by bulb size

H1 (fog light front)

D2S (headlight low beam)

2723 (center high mount stop light)

7528 (brake light, tail light, side marker light rear)

6418 (license plate light, glove box light, courtesy light and more)

7506 (turn signal light rear, back up reverse light)

2357A (side marker light front, turn signal light front inner, parking light)

2825 / 194 (parking light, turn signal light front outer, trunk or cargo area light and more)

98 (parking light, turn signal light front outer, courtesy light and more)

2827 (turn signal light front outer)

6411 (dome light, engine compartment light)

6428 (dome light, engine compartment light)

7441 (trunk or cargo area light)

For brake lights and turn signals, match the LED color to the lens: red behind a red lens, amber for turn signals.

While you're in there

Common questions

What size is the low beam headlight bulb on a 1998 Audi A4?

D2S.

What size is the fog light bulb on a 1998 Audi A4?

H1.

Are the brake light and tail light the same bulb on a 1998 Audi A4?

Yes. Both use a 7528.

Can I put LED bulbs in a 1998 Audi A4?

Most sizes on this vehicle have a plug-in LED version. Fog, license plate and interior lights are the easy wins. For headlights, aim them after you install and check your local laws first. Some trims of this vehicle use HID (D-series) headlight bulbs. Replace those with the same HID size, not an LED.

How do I make sure I'm buying the right size?

Pull the old bulb and read the number stamped on its base, or check the bulb chart in your owner's manual. Trims and mid-year changes can differ from any chart, including this one.

Other Audi A4 years

1996 Audi A4 bulb sizes · 1997 Audi A4 bulb sizes · 1999 Audi A4 bulb sizes · 2000 Audi A4 bulb sizes · 2001 Audi A4 bulb sizes · 2002 Audi A4 bulb sizes

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