Mercedes-Benz SL600 Headlight Bulb Size

The Mercedes-Benz SL600 headlight bulb sizes include H7, 9004, and H1 for high beam applications, along with D1S, D2S, and H7 options for low beam configurations. The replacement chart covers 1994 to 2009 model years with corresponding bulb size specifications for each production period.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

High Beam Headlight

Years	Bulb Size
2004-2009	H7
1996-2002	H1 (With HID Headlamps)
1996-2002	9004 (With Halogen Capsule Headlamps)
1994-1995	9004

Low Beam Headlight

Years	Bulb Size
2009	D1S
2007-2008	D2S
2004-2006	D2S (With HID Headlamps)
2004-2006	H7 (With Halogen Capsule Headlamps)
1996-2002	D2S (With HID Headlamps)
1996-2002	9004 (With Halogen Capsule Headlamps)
1994-1995	9004

Bulb Specifications

Description	Bulb Size
ECE standard (Europe & worldwide). Single-filament halogen bulb with PX26d base. Also approved in the US and Japan. 12V, 55W.	H7
ECE standard (Europe & worldwide). Single-filament halogen bulb with P14.5s base. Also approved in the US and Japan. 12V, 55W.	H1
ANSI standard (US & Canada). Dual-filament halogen bulb with P29t base. 12V, 65W/45W.	9004
ECE standard (Europe & worldwide). HID (xenon) discharge bulb with PK32d-2 base and integral ignitor, for projector-type housings. 85V, 35W.	D1S
ECE standard (Europe & worldwide). HID (xenon) discharge bulb with P32d-2 base, for projector-type housings. Requires external ignitor. 85V, 35W.	D2S

Other Locations

Additional Notes

The H7 bulb is the most frequently specified type across the high beam positions of the Mercedes-Benz SL600, covering the 2004-2009 model years in that function. It is a single-filament halogen bulb rated at 12V and 55W, built to ECE standards with a PX26d base, and holds approval in the US and Japan in addition to European markets.
The 9004 bulb appears across both high beam and low beam positions for the 1994-2002 model years on halogen-equipped vehicles. Unlike the H7, it carries a dual-filament design with a P29t base, rated at 12V and 65W for high beam and 45W for low beam, and follows the ANSI standard used in the US and Canada.
The D2S is the most frequently listed HID bulb in the specifications, covering low beam positions from 1996-2007 on HID-equipped vehicles. It operates at 85V and 35W, uses a P32d-2 base suited to projector-type housings, and requires a separate external ignitor to function.
The 2009 Mercedes-Benz SL600 is the only model year in the specifications to use the D1S bulb for the low beam. While the D1S shares the same 85V and 35W operating values as the D2S, it incorporates an integral ignitor within the bulb itself and uses a PK32d-2 base, making it physically and electrically incompatible with D2S sockets.
The H1 bulb is listed exclusively for high beam use on HID-equipped vehicles from 1996-2002. It is a single-filament halogen type with a P14.5s base, rated at 12V and 55W under ECE standards, and is also approved in the US and Japan.
For the 1996-2002 model years, the SL600 was offered with either halogen capsule headlamps or HID headlamps, and the required bulb sizes differ between the two configurations. Halogen-equipped vehicles in that range use the 9004 for both high and low beam, while HID-equipped vehicles use H1 for high beam and D2S for low beam.
The 2004-2005 model years share a similar split, where halogen-equipped vehicles use H7 for the low beam while HID-equipped vehicles use D2S. The high beam position for both configurations in those years is H7 regardless of headlamp type.
The D1S and D2S bulbs are not interchangeable despite sharing the same wattage and voltage ratings. The integral ignitor on the D1S and the differing base designs mean each type is specific to a housing built for that standard, and substituting one for the other is not supported by the specifications.