Buy Mercedes-Benz E350 Headlight Bulbs

Headlight bulbs-also called headlamps, light bulbs, or front lamps-turn battery power into a beam that lets you see and be seen. Modern bulbs are 12-volt and plug into a socket behind the lens. Different technologies (halogen, HID/xenon, LED) shine in different ways, but they all fit inside the same headlight housing (allalighting.com).

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Always check the car's build sheet or owner's guide to confirm before ordering.

A quartz-glass capsule with a tungsten filament. It runs at about 55 W and 1,000 lumens (thetimes.co.uk). Expected life is 500-2,000 hours depending on the brand (sealight-led.com).

HID/Xenon

Uses an arc inside a capsule of xenon gas. Low-beam capsules such as D1S produce roughly 3,000 lumens at 35 W (allalighting.com), last 2,000-3,000 hours (powerbulbs.com), and commonly come in 4,300 K (OEM white) or 6,000 K (ice white) temperatures (xenonpro.com).

LED

Light-emitting diodes draw less power and can last 20,000 hours or more while using up to 75 % less energy than older bulbs (energy.gov). Factory W213 units are sealed LED matrices; aftermarket "plug-in" LED bulbs are only legal if the lamp was designed and tested for them - a point stressed in NHTSA guidance .

• Voltage: 12 V system on all E-Class cars
• Wattage: 55 W halogen, 35 W HID, ≤25 W per LED array (allalighting.com)
• Color temperature: 3,200 K (halogen), 4,300 K OEM HID (daylight white), up to 6,000 K aftermarket (xenonpro.com)
• Beam pattern: Must meet SAE/DOT pattern and glare limits. Mis-aimed lamps can dazzle oncoming drivers (thetimes.co.uk).

• One side dark or flickering means the bulb or its ballast (HID) is dying.
• Dim yellow light often signals an aging halogen filament (powerbulbs.com).
• "Bulb Out" dash message appears when resistance changes.

1. Park, set the brake, switch off lights.
2. Open the hood and pop off the round rubber cap behind the lamp.
3. Twist and pull the bulb holder straight back.
4. Unplug the connector, swap in the new bulb-don't touch the glass (youtube.com).
5. Re-fit in reverse and test.

U.S. rules (FMVSS 108) require the top of the low-beam cut-off to fall no higher than lamp center height when measured 25 ft from a wall - Mercedes supplies a similar chart in service bulletins (static.nhtsa.gov). Proper alignment prevents the glare problem noted by road-safety groups (thetimes.co.uk).

• Keep lenses clean; haze can cut output by 50 %.
• Avoid touching quartz glass; skin oil creates hot spots that shorten life (sealight-led.com).
• Replace bulbs in pairs so color and brightness match.

Halogen and LED bulbs can go in regular trash, though recycling is better. HIDs contain mercury and must be taken to a recycling center - wrapping broken pieces in foil keeps shards and vapor contained (thespruce.com).

LED retrofit kits promise up to 6× halogen brightness, but they're legal only if the housing is certified for LED sources (nhtsa.gov). Using an uncertified kit may fail inspection or blind oncoming drivers (thetimes.co.uk).

Q: What headlight bulb size fits my 2011 E350 with standard lights?
A: The 2011 W212 usually takes an H7 bulb for both low and high beams (suncentauto.com).

Q: My 2015 E350 has "Intelligent Light System." Which bulb is that?
A: Cars with that option use a D1S xenon capsule for low beam; the adaptive motors sit in the projector, so the bulb itself is still a simple swap (garagenotes.net).

Q: Can I plug an LED bulb into my 2008 halogen housing?
A: Not legally. The housing was tested for halogen only; an LED source may scatter light and won't have DOT approval (nhtsa.gov).

Q: What color temperature looks most like sunlight?
A: HID or LED bulbs around 4,300 K match midday daylight and give excellent wet-road contrast - brighter blues (6,000 K+) look cool but cut useful yellow light (xenonpro.com).

Q: How long should an HID bulb last?
A: About 2,000-3,000 hours, or 5-10 years of typical night driving (powerbulbs.com).

Q: My new bulbs are bright but still look dim on the road. Why?
A: Cloudy plastic lenses block light. A headlight-restoration kit or new lens covers can restore clarity and beam reach (sealight-led.com).

Q: Is it normal for HIDs to flicker at start-up?
A: A brief flicker (warm-up arc) is normal; continuous flicker means the capsule or ballast is failing (powerbulbs.com).

Q: Do LEDs save battery power?
A: Yes. DOE tests show LEDs use 75 % less energy than incandescent lighting (energy.gov).

Q: How do I dispose of a broken xenon bulb?
A: Wear gloves, place pieces in a sealed bag, and drop them at a household hazardous-waste site (thespruce.com).

Q: Why do some new cars' lights seem to blind me?
A: Many modern LED systems reach roughly 6,000 lumens-six times a halogen bulb-and sit higher on SUVs, so mis-aimed beams dazzle others (thetimes.co.uk).