Mercedes-Benz Sprinter Cornering Bulb Size

Additional Notes

• The Mercedes-Benz Sprinter uses the H7 bulb size for its cornering lamp position across the 2010-2018 model years, specifically on vehicles equipped with HID headlamps.
• The H7 is a single-filament halogen bulb, meaning it contains one tungsten filament responsible for producing light, with no secondary filament for a different beam mode.
• H7 bulbs are built on the PX26d base, a two-pin bayonet-style connector that is specific to the H7 format and is not interchangeable with other common bases such as the P43t used by H4 bulbs.
• The H7 operates at 12 volts and 55 watts, which are standard ratings for low-voltage automotive halogen applications.
• The H7 is an ECE-regulated bulb type, meaning it conforms to the Economic Commission for Europe lighting standards used across Europe and in many other markets worldwide.
• Despite its ECE origins, the H7 also carries approval for use in the United States and Japan, giving it broad regulatory acceptance across major automotive markets.
• The cornering lamp application on the Sprinter is conditional on the presence of HID headlamps, indicating that the H7 halogen bulb serves a supplementary cornering function alongside a separate high-intensity discharge headlamp system rather than acting as the primary headlamp source.
• Because the H7 PX26d base is a format-specific connector, substituting a physically similar bulb with a different base type would result in an incompatible fit for this cornering lamp position.