The 2010 Mercedes E350 (W212) typically uses HID Xenon headlights with a 35W bulb; most cars in North America and many other markets use a D2S-based bulb, though some regions and early builds used D3S. If your vehicle is equipped with halogen headlights, it would use conventional halogen bulbs such as H7 for the low beam. To be certain, check your owner's manual or inspect the bulb base tag in the headlight housing.
This article explains the headlight setup for the 2010 E350, how to identify the correct bulb type, and practical tips for replacement and verification across different markets and trims.
Headlight system overview
In 2010, the E350 commonly shipped with Xenon HID headlights as a premium feature, with automatic leveling and, in some markets, headlight washers. The bulb type is 35W HID; the two main base types used around that time are D2S and D3S. Some halogen-equipped trims exist in certain markets, which use standard halogen bulbs. Always verify the exact bulb type for your car using the VIN, the owner's manual, or the bulb imprint inside the headlight assembly.
Before listing the typical bulb configurations, note that bulb choices vary by trim and market. The information below reflects common scenarios for the 2010 E350.
Bulb types by configuration
Below is a concise guide to what you’re likely to encounter on a 2010 E350, depending on the headlight configuration and market.
- Bi-Xenon HID headlights (the most common setup on 2010 E350 models): 35W HID bulbs, typically base D2S. Some early or region-specific builds used D3S bulbs. Confirm with the owner’s manual or by inspecting the bulb inscription.
- Halogen headlights (rare in U.S. market for 2010 E350, more common in some overseas trims): conventional halogen low-beam bulbs (often H7). Fog lights, when present, typically use a dedicated bulb such as H11, but this can vary by market.
When replacing, always verify the exact bulb type for your specific vehicle, as MB did vary across production runs and regions.
How to verify and replace safely
To ensure you install the correct bulb and maintain safety, follow these steps:
- Check the owner's manual or a maintenance sheet for the exact bulb specification for your VIN and trim.
- Inspect the headlight housing label or the bulb itself (if accessible) for the imprint (D2S, D3S, H7, etc.).
- For HID bulbs, ensure the ballast and igniter are compatible with the new bulb and handle bulbs with gloves to avoid oil on the glass.
- When replacing HID bulbs, consider having a professional perform the replacement to preserve proper beam alignment and safety features.
After replacing any headlight bulb, verify the beam pattern and adjust the alignment if necessary to ensure proper illumination and comply with local regulations.
Summary
In short, the 2010 Mercedes E350 most often uses a 35W Xenon HID bulb in the D2S family, with some markets or early builds using D3S. Some rare configurations or overseas trims may have halogen headlights using standard H7 (low beam) and H11 (fog) bulbs. Always confirm the exact bulb type for your vehicle via the owner's manual, VIN, or by checking the bulb inscription in the headlight housing, and replace bulbs with care to maintain safety and performance.
What is a 2010 Mercedes E350 worth?
Values and Prices
Estimated Trade-In Values for the 2010 Mercedes-Benz E-Class E 350 Sedan 4D range from about $3,740 to $4,940 depending on vehicle condition. Estimated Private Party Values range from about $5,170 to $6,695 depending on vehicle condition. Valid for ZIP Code 29401 through 4/22/2026.
What bulbs does Mercedes use?
The following bulbs can be replaced.
- Halogen headlamps.
- Turn signal light: PY 21 W.
- Main beam: H7 55 W.
- Dipped beam: H7 55 W.
What is the low and high beam bulb headlight bulb type for a 2010 Mercedes C300?
Mercedes-Benz C300 (2008-2010) Bulb Size Chart
| Headlights (High Beam and Low Beam)(W/O Xenon headlight) | H7 |
|---|---|
| Headlights (High Beam) | H7 |
| Headlights (Low Beam) | H7 OR D1S |
| Front Fog Lights | H11 (H8 H9) OR H7 |
| Rear Fog Lights | 1156 (BA15S P21W) |
What year is E350 to stay away from?
Data from carcomnplaints.com suggests that the worst year for the Mercedes E-Class is 2006, with a large number of E350 models of this era suffering from engine balance shaft issues. It's a problem specific to this engine that can affect 2005-2008 cars, but other engines aren't affected.