Mercedes-Benz CLA-Class headlight bulb size by year

The low beam, high beam and fog light bulbs for every Mercedes-Benz CLA-Class from 2013–2027. Pick your year to jump straight to it. Each answer links to the page in Mercedes-Benz’s owner’s manual it came from.

Jump to your year

2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2027

Mercedes-Benz CLA-Class bulb sizes at a glance

Years	Low beam	High beam
2013–2018	H7	H15
2019	H7	H15
2020–2022	LED	LED
2027	LED	LED

Where a year lists more than one bulb, it depends on trim or headlight type; see that year’s section below.

2013–2018 Mercedes-Benz CLA-Class headlight bulbs

Light	Bulb	Notes
Low beam	H7	Vehicles with halogen headlamps
High beam	H15	Vehicles with halogen headlamps

Where this comes from (6 sources)

Buy bulbs for your 2013–2018 Mercedes-Benz CLA-Class

RecommendedH7 standard replacement

Same light as the original bulb, at the lowest price. Fits your low beam.

Amazon AutoZone Advance Auto O’Reilly Walmart

More H7 options: brighter halogen, long life, LED upgrade

Brighter halogenPerformance halogen bulbs throw more light down the road. They usually wear out sooner.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart
Long lifeBuilt to last longer between changes. A good pick for high-beam and fog sockets you use often.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart
LED upgradeWhiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart

RecommendedH15 standard replacement

Same light as the original bulb, at the lowest price. Fits your high beam.

Amazon AutoZone Advance Auto O’Reilly Walmart

More H15 options: brighter halogen, long life, LED upgrade

Brighter halogenPerformance halogen bulbs throw more light down the road. They usually wear out sooner.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart
Long lifeBuilt to last longer between changes. A good pick for high-beam and fog sockets you use often.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart
LED upgradeWhiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart

2019 Mercedes-Benz CLA-Class headlight bulbs

Light	Bulb	Notes
Low beam	H7	Halogen headlamps Two sources
High beam	H15	Halogen headlamps Two sources

Where this comes from (1 source)

Philips Automotive Lighting Catalog 2002-2022, p. 246 and OSRAM bulb finder: CLA Coupe (C117) CLA 180 (117.342)

Buy bulbs for your 2019 Mercedes-Benz CLA-Class

RecommendedH7 standard replacement

Same light as the original bulb, at the lowest price. Fits your low beam.

Amazon AutoZone Advance Auto O’Reilly Walmart

More H7 options: brighter halogen, long life, LED upgrade

Brighter halogenPerformance halogen bulbs throw more light down the road. They usually wear out sooner.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart
Long lifeBuilt to last longer between changes. A good pick for high-beam and fog sockets you use often.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart
LED upgradeWhiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart

RecommendedH15 standard replacement

Same light as the original bulb, at the lowest price. Fits your high beam.

Amazon AutoZone Advance Auto O’Reilly Walmart

More H15 options: brighter halogen, long life, LED upgrade

Brighter halogenPerformance halogen bulbs throw more light down the road. They usually wear out sooner.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart
Long lifeBuilt to last longer between changes. A good pick for high-beam and fog sockets you use often.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart
LED upgradeWhiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Amazon AutoZone Advance Auto Parts O’Reilly Auto Parts Walmart

2020–2022 Mercedes-Benz CLA-Class headlight bulbs

Light	Bulb	Notes
Low beam	LED	LED headlamps standard (maker spec)
High beam	LED	LED headlamps standard (maker spec)

LED headlights are usually serviced as a complete lamp assembly rather than a separate bulb; a dealer or parts counter can quote the assembly for your trim.

Where this comes from (3 sources)

2027 Mercedes-Benz CLA-Class headlight bulbs

Light	Bulb	Notes
Low beam	LED	LED headlamps standard (maker spec)
High beam	LED	LED headlamps standard (maker spec)

LED headlights are usually serviced as a complete lamp assembly rather than a separate bulb; a dealer or parts counter can quote the assembly for your trim.

Where this comes from (1 source)

Mercedes-Benz (US): 2027 Mercedes-Benz CLA hybrid Quick Reference Guide (2025-12-15)

Always double-check the size printed on the old bulb’s base before you buy. See how we source our data. More Mercedes-Benz models.