Hella Headlight - 1EL 223 151-171

This Hella headlight is an OE-quality replacement part designed for the left side of compatible Me...

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eBayHELLA Halogen-Headlight - left - for e.g. Mercedes-Benz M-Class (W 1EL223151-171
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Product Information

Full details

The Hella 1EL 223 151-171 headlight is designed for Mercedes-Benz M-Class (W163) owners seeking an OE-quality replacement for the left side of their vehicle. This halogen-based unit offers a comprehensive lighting solution by integrating high beam, low beam, position light, and indicator functions into one pre-assembled unit. While it provides a reliable factory-standard fit, users must ensure their vehicle is intended for right-hand traffic as per ECE specifications.

All features

Model Part Number1EL 223 151-171
BrandHella

Extended Product Information

FAQs

Is this headlight suitable for left-hand traffic countries?

No, this specific part number is designed for right-hand traffic configuration and may not be legal or safe in countries driving on the left side of the road.

Does this unit come with bulbs included?

Yes, this Hella unit comes fully equipped with the bulbs required for the high beam, low beam, position light, and indicator functions.

Do I need to program the leveling motor after installation?

Typically, the integrated motor is plug-and-play, but you should verify your vehicle's manual if you experience calibration issues.

What side of the vehicle does this fit?

This is a left-hand side headlight assembly for the Mercedes-Benz M-Class (W163).

Can I use LED bulbs in this housing?

This housing is designed for halogen bulbs. Using aftermarket LEDs may affect the light pattern and could lead to compliance issues.

Troubleshooting

Headlight beam is aimed too low or too high

Verify that the integrated leveling motor is properly connected to the vehicle's electrical harness and that the dash-mounted adjustment switch is functional.

One of the light functions is not operating

Check the fuse box for any blown fuses related to the headlight circuits and ensure the bulb seated properly within its housing.

Pros and Cons

Pros

  • Direct fit for Mercedes-Benz M-Class (W163)
  • Includes leveling motor for easier installation
  • Comes with all necessary bulbs pre-installed
  • Maintains original factory equipment standards

Cons

  • Designed specifically for right-hand traffic configuration
  • Limited to the left-side (driver side for LHD vehicles) placement
  • Halogen technology lacks the longevity of modern LED upgrades

Setup, Compatibility & Care

Before beginning installation, verify that your Mercedes-Benz M-Class (W163) chassis number aligns with the manufacturer's compatibility list.

  1. Preparation: Ensure the vehicle is powered down and the headlight switch is in the 'Off' position.
  2. Installation: Access the headlight assembly area by removing necessary trim or bumper clips as outlined in the vehicle service manual. Unplug the existing wiring harness before unbolting the old unit.
  3. Alignment: Once the new Hella unit is mounted, check the vertical leveling function using the onboard motor controls.
  4. Care: Clean the polycarbonate lens with a soft, lint-free cloth and automotive-safe plastic cleaner. Avoid harsh solvents or abrasive materials that could cause micro-scratches or clouding over time.

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