Headlight Lens X156 F/L for Mercedes-Benz GLA-CLASS

Replacement clear polycarbonate headlamp lens for the facelift Mercedes-Benz GLA (X156, 2017–2020). Precisely moulded to OE geometry to restore optical clarity and sealing when the 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:

• OE-Accurate Profile: Correct curvature and bonding flange for a clean seal to X156 facelift housings.

• Optical Clarity: UV-stabilised polycarbonate maintains sharp cut-off and factory DRL signature.

• Seal-Ready: Smooth perimeter lip for reliable resealing with automotive butyl or PU headlight sealant.

• Cost-Effective: Renew only the damaged lens; keep your good internals and electronics.

Compatibility:

• GLA-Class (X156) — 2017–2020 Facelift (MOPF)

• Works with facelift Halogen, Bi-Xenon/ILS, and LED High Performance/AMG-Line where the outer lens outline is shared (internals differ).
  Not for pre-facelift 2014–2016 lamps. Always confirm via VIN and visual match.

Related Part Number Families (cross-refs):
Typical complete-lamp series: A156-906-xx-xx (LH) / A156-907-xx-xx (RH). Lens subcomponents carry variant-specific suffixes — verify by VIN and the stamp on your original 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 and remove all old butyl/PU; test-fit before bonding.

• Use quality 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.

• Beam pattern is set by the internal optics — the lens does not change RHD/LHD cut-off.

Why Choose TOParts:
OE-quality Mercedes components focused on fit, clarity, and durable sealing — trusted by panel shops and GLA specialists across South Africa.

Q&A
Q1: Will a new lens stop condensation? Usually yes, if vents are clear and the lens is sealed correctly.
Q2: Is adhesive included? No. Use automotive-grade butyl or PU sealant.
Q3: Can this lens convert halogen ↔ LED/Xenon? No. Those differences are internal (optics/modules/ECUs).
Q4: Left or Right — which do I choose? Order the side that matches your damaged lamp. On RHD vehicles, Left = driver, Right = passenger. Verify via VIN and lens outline.