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Replacement clear polycarbonate headlamp lens for the Mercedes-Benz ML-Class (W166) pre-facelift. For use when your original lens is cracked, yellowed, or crazed. Sold per side — choose Left or Right.
What this is / isn’t:
Included: 1× clear outer lens (lens only).
Key Features:
Profile: Correct curvature and bonding flange for a clean seal on W166 ML (pre-facelift) housings.
Material: Polycarbonate lens.
Seal-Ready: Smooth perimeter lip for resealing with automotive butyl or PU Headlight sealant.
Cost-Effective: Replace only the damaged lens and retain your working internals.
Compatibility:
ML-Class (W166) — 2012–2015 Pre-Facelift
Works with Halogen and Bi-Xenon/ILS Variants where the outer lens outline is shared (internals differ).
Not for GLE (W166, 2015–2019 facelift), GLE Coupé (C292), or GL/GLS (X166). Always confirm by VIN And visual match to your lamp.
Lens subcomponents use variant-specific suffixes — verify via VIN And the stamp on your existing lens.
What’s Included / Not Included:
Included: 1× clear headlamp lens only, side-specific.
Not included: Housing, optics/modules, control units, DRL/indicator boards, adjusters, gaskets, rear covers, or sealant.
Installation Notes (Pro Tips):
Remove lamp; gently heat perimeter (low-heat oven or careful heat gun) to soften factory adhesive.
Separate lens; remove all old butyl/PU And test-fit before bonding.
Use butyl rope (serviceable) or automotive PU (permanent). Clamp/tape evenly while curing.
Ensure vent ports are clear; replace desiccant if fitted.
After refit, check headlight aim and do a light-mist leak test to verify seal integrity.
The beam pattern is set by the internal optics — replacing the lens does not Change RHD/LHD cut-off.
Q&A
Q1: Will a new lens fix condensation?
A1: Condensation has several possible causes. Inspect the housing, vents and existing seal, and confirm that the lens is the faulty part before ordering.
Q2: Is adhesive included?
A2: No. Use butyl or PU Headlight sealant.
Q3: Can this lens fit the GLE facelift (2015–2019)?
A3: No. The facelift GLE uses different lamp tooling. Order the W166 F/L (GLE) Lens instead.
Q4: Left or Right — which do I choose?
A4: Order the side that matches your damaged lamp. On right-hand-drive vehicles, Left = passenger, Right = driver. Verify against your VIN And lens outline.
Condition: New aftermarket replacement part. Not an original Mercedes-Benz part; brand and model names are used only to show fitment.


Hello! Need help? Don’t worry, I’ve got you. Tell me what’s up, and I’ll be happy to assist 💁
