2019 Mercedes-Benz Sprinter Bulb Sizes (Headlight, Tail, Fog)

Quick reference

The 2019 Mercedes-Benz Sprinter offers a mix of lighting technologies, primarily depending on the chosen trim level and optional packages. Many models came standard with halogen headlights, while higher trims or optional lighting packages featured full LED headlights. It's crucial to verify your specific vehicle's setup before purchasing replacement bulbs.

For models equipped with LED headlights from the factory, the low beam and high beam bulbs are typically integrated into sealed LED units and are not designed for individual bulb replacement. In these cases, replacement usually involves the entire headlight assembly if a component fails.

LED vs halogen upgrade considerations

Upgrading from halogen to LED bulbs in your 2019 Mercedes-Benz Sprinter can offer significant improvements in brightness, longevity, and a modern aesthetic. However, there are several factors to consider to ensure a smooth transition:

• CANBUS Errors: The Mercedes-Benz Sprinter utilizes a sophisticated CANBUS (Controller Area Network Bus) system that monitors all electrical components, including lighting. Halogen bulbs draw more power than most LED equivalents. When you install LED bulbs, the lower power draw can be misinterpreted by the CANBUS system as a "bulb out" error, triggering dashboard warning lights or rapid flashing (hyper-flashing) for turn signals. To prevent this, you'll often need LED bulbs with built-in CANBUS decoders or external load resistors.
• Adapters Needed: Some aftermarket LED bulbs may have a larger heatsink or fan assembly than the original halogen bulbs, requiring specific adapters or modifications to fit properly within the headlight housing. Always check the physical dimensions of the LED bulbs against your vehicle's available space.
• Beam Pattern: Not all LED bulbs are created equal. Poorly designed or generic LED bulbs can scatter light excessively, creating glare for oncoming drivers or failing to properly illuminate the road. Look for LED bulbs that are designed to mimic the filament placement of their halogen counterparts to ensure a proper beam pattern in your Sprinter's reflectors or projector housings. This is especially critical for low beam and high beam applications.
• Flickering: In some instances, without proper CANBUS integration or voltage regulation, aftermarket LEDs may flicker, especially during startup or when the vehicle's electrical system experiences minor fluctuations. High-quality LED kits are designed to mitigate this.

How to replace each bulb

Replacing bulbs on your 2019 Mercedes-Benz Sprinter generally involves similar steps to other vehicles, but access can sometimes be a bit snug, especially in the engine bay.

• Headlights (Low Beam/High Beam - Halogen): Access is usually from the rear of the headlight assembly within the engine bay. Twist and remove the dust cap, disconnect the electrical connector, unclip the retaining spring, and remove the old bulb. Installation is the reverse.
• Fog Light: Often accessed from underneath the vehicle or by partially removing the inner fender liner. Disconnect the electrical connector and twist to remove the bulb.
• DRL (Halogen): Typically integrated into the headlight assembly. Access from the rear of the housing. Disconnect and twist to remove.
• Front Turn Signal: Accessed from the rear of the headlight assembly. Twist the bulb holder to remove it, then pull out the bulb.
• Rear Turn Signal/Brake Light/Tail Light/Reverse Light: These are usually located in the taillight assembly. Open the rear doors, remove any access panels or screws securing the taillight assembly, and carefully pull it away from the body. Twist the bulb holders to remove them and replace the bulbs. Make sure to note which bulb goes into which slot.
• License Plate Light: Found above the license plate. Often involves removing a clear plastic lens cover by prying it gently with a small flathead screwdriver. The bulb is usually a wedge type.
• Side Marker: Typically a small wedge bulb (W5W/194) that can be accessed by carefully prying or twisting the fixture from the exterior or reaching behind the bumper/fender liner.
• Dome/Map Light: These interior lights often have clear plastic covers that can be gently pried off with a plastic trim tool or small flathead screwdriver. Festoon bulbs (C5W/6418) are typically held in by spring clips, while wedge bulbs (W5W/194) pull straight out.

Always ensure the vehicle is turned off and the lights are cool before handling bulbs. Wear gloves to avoid transferring oils from your skin onto halogen bulbs, which can reduce their lifespan.

Common lighting issues for this generation

Owners of the 2019 Mercedes-Benz Sprinter, especially those with halogen lighting systems, might encounter a few common issues:

• Premature Halogen Bulb Failure: While not unique to the Sprinter, halogen bulbs (especially H7 low beams) can have a shorter lifespan, particularly if subjected to vibration or frequent on/off cycles. Ensure proper installation and avoid touching the glass during replacement.
• Corrosion in Tail Light Sockets: Due to environmental exposure, the rear taillight bulb sockets can sometimes develop corrosion, leading to intermittent bulb operation or complete failure. Cleaning the contacts with a wire brush or electrical contact cleaner can often resolve this.
• DRL Malfunctions: Issues with Daytime Running Lights, whether halogen or LED, can sometimes stem from wiring challenges or control module problems more so than the bulbs themselves. If a DRL bulb isn't the obvious fix, further electrical diagnosis may be needed.
• CANBUS Errors with Aftermarket LEDs: As mentioned, if you've upgraded to aftermarket LEDs without proper CANBUS error cancellation, you'll likely experience dashboard warnings. This is a common "issue" that is user-induced rather than a vehicle fault.

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