Glovebox Replacement Button Lock For Mercedes GLS X166 - 2015 to 2019

Glovebox Button Lock Replacement for Mercedes-Benz GLS X166 — Restore the Factory Latch

Direct replacement glovebox latch handle for the Mercedes-Benz GLS (X166). Despite being a flagship full-size SUV, the GLS X166 uses the same glovebox latch assembly as the rest of the W166/X166 platform — and it fails just as readily. If your GLS glovebox button has cracked, the chrome trim has separated, or the mechanism no longer latches cleanly, this part replaces OEM part number A1666800491 and restores full functionality with a factory-matching finish.

Looking to further upgrade your Mercedes-Benz? Also visit the Mercedes-Benz section of our aftermarket parts shop.

Compatible Mercedes-Benz Models

This glovebox latch handle replaces OEM part A1666800491 and fits the following models:

Why the GLS X166 Glovebox Latch Fails

The GLS X166 shares its interior architecture with the GLE, ML, and GL of the same generation. The glovebox latch is built to cost rather than longevity — thin injection-molded plastic that degrades under the heat load from direct sun exposure on the passenger side. GLS owners often notice the button becoming increasingly stiff before it finally cracks or the chrome trim peels off. By that point, the glovebox may not latch at all, which means it pops open under braking — a nuisance and a safety concern.

This replacement is built to OEM specifications (A1666800491) with an improved material formulation and installs in under two minutes with no tools.

Key Features

• OEM-spec replacement — matches Mercedes-Benz part number A1666800491 for precise fit and function
• Durable ABS and PC construction — improved resistance to heat-related brittleness versus the original
• Chrome-finish button — matches factory interior trim for an invisible repair
• Smooth latch mechanism — clean click-open, secure hold-closed, no jamming or play
• Direct snap-in fit — no modifications, no adhesive, no drilling

Two-Minute Installation

No tools required. No dashboard removal. No dealership visit.

1. Open the glovebox and remove the old latch by releasing the retaining clips from behind the glovebox door panel
2. Snap the new latch into the same mounting position — it clicks into place
3. Test the button — press to open, push the door to close and latch

What's Included

• 1x Glovebox latch handle assembly (chrome button with mounting housing)

Free shipping on all orders. Every product is backed by a 1-year warranty.

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