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2004 Mercedes-Benz C-class 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.

2004 Mercedes-Benz C-class Bulb Size Chart

PositionBulb CodeAliasesTrim / PackageFactory TypeConfidenceReviewNotesShop
Side MarkerW5W—Standard listingHalogenMedium
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Turn Signal Front1156A—Standard listingHalogenHigh
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Fog Light9006HB4If equipped / package-dependentHalogenHigh
Pending

If equipped; fog light packages can vary by trim.

AmazoneBay
High BeamH7—Standard listingHalogenHigh
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

AmazoneBay
Low BeamH7—Standard listingHalogenHigh
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

AmazoneBay
Parking LightW5W—Standard listingHalogenMedium
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Turn Signal Rear7507—Standard listingHalogenHigh
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Brake Light7528—Standard listingHalogenHigh
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon
Tail Light7528—Standard listingHalogenHigh
Pending

Verify trim, factory lighting package, and the bulb number on the existing bulb.

Amazon

2004 Mercedes-Benz C-class Fitment Notes

Across the 1994-2014 production range, our database shows changes in the listed High Beam, Low Beam, Side Marker positions. Use the chart above for this 2004 model, then confirm the bulb number in your vehicle 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 2004 Mercedes-Benz C-class's bulbs compare to other years?

The 2004 Mercedes-Benz C-class changed bulb sizes from 2003. The previous model year used a different configuration.

The 2005 model switched to a different bulb configuration.

This bulb configuration covers the 2004 model years. ← 2003 2005 →

Finding the best installation guide...

Other C-class Years

20142013201220112010200920082007200620052003200220012000199919981997199619951994

More from Mercedes-Benz

190D190E200200D220220D230230S

Other Vehicles That Use H7 Bulbs

2023 Hyundai Kona2023 Kia Forte2022 Alfa Romeo Stelvio2022 Hyundai Veloster2022 RAM ProMaster 15002022 RAM ProMaster 2500

H7 Comparisons

9005 vs H7H1 vs H7H11 vs H7H4 vs H7

Frequently Asked Questions

Our database lists H7 for the 2004 Mercedes-Benz C-class 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 2004 Mercedes-Benz C-class high beam position. Some vehicles vary by trim, lighting package, or previous housing changes.

Dim headlights on a 2004 Mercedes-Benz C-class can come from aging halogen bulbs, cloudy lenses, weak electrical connections, or an incorrect bulb. Confirm the listed H7 size against the bulb in the housing before choosing a replacement or upgrade.

Our database lists 9006 for the 2004 Mercedes-Benz C-class fog light position. Fog lights are often package-dependent, so verify that your vehicle is equipped with factory fog lights before ordering.

The 2004 Mercedes-Benz C-class uses a single bulb (dual filament) headlight system. This means one bulb controls both high and low beams.

LED upgrades are available for many H7 applications, but fitment, beam pattern, dashboard warnings, and road-use legality can vary. Use products that list your exact bulb family, such as H7, and verify the factory housing before buying.

Our database has a fog light entry for the 2004 Mercedes-Benz C-class: 9006. Fog lights may still depend on trim or equipment package.

Yes — the 2004 Mercedes-Benz C-class uses different bulb sizes than the 2003 model. The 2004 generation introduced this bulb configuration.

The 2004 Mercedes-Benz C-class is the only year in the 2004 generation to use the H7 bulb for the low beam headlight.

Access varies by engine bay layout and headlight housing. Before disassembly, confirm the listed H7 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. Common halogen H7 replacements are usually cheaper than LED conversion kits. 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 2004 Mercedes-Benz C-class.