Window Master Switch ABS for Mercedes-Benz W251 X164 GL ML

Restore complete four-window control to your Mercedes‑Benz W251 or X164 platform with this precision-molded Door Master Window Switch, manufactured to match O/E numbers A2518300590 and 2518300590. When original rocker actuators become sluggish, lose electrical contact, or crack from repeated flexing, this direct replacement restores immediate push-button responsiveness without dealer-level pricing. Constructed from impact-resistant ABS engineering plastic, the panel features a rigid internal contact grid that maintains stable voltage delivery to each door motor harness. Factory bench-testing verifies smooth travel resistance and correct polarity routing before packaging, ensuring a straightforward drop-in swap for daily commuters and restoration shops alike.

Benefits & Tips

Pinpoint Fit Without Modification: The molded bracket aligns with the factory trim cavity, eliminating the need for drilling, epoxy bonding, or pin-bending when transferring older connector looms.

Verify Function Before Final Assembly: Reconnect the dashboard plug and cycle each window up/down once before snapping the trim faceplate back into place to catch wiring faults or blown fuses early.

Safeguard Interior Electronics: Disconnect the vehicle terminal negative cable before detaching the switch module to prevent transient voltage spikes from triggering central locking or airbag diagnostics.

Product Specifications

Component Type: Driver-Side Window Master Control Switch
Housing Material: Injection-Molded ABS Polymer
Switch Actuation: Tactile Push-Button Array
Dimensions: 18 cm (Length) × 6 cm (Width) × 8 cm (Height)
Net Mass: 0.24 kg
OEM Cross-Reference: A2518300590 / 2518300590 / 251 830 05 90
Compliance Marking: CCC Certified
Approved Model Matrix: Mercedes GL 320/350/450 (2005–2012) · Mercedes R 280/300/320/350/500/550/63 AMG (2005–2012)

Package includes:

• 1 × Window Master Switch Control Panel (Part No. A2518300590)
• 1 × Inner Cushioning Bubble Wrap with Branded Retail Box

Warnings & Reminders

This module contains zero high-concern hazardous substances and meets standard regulatory thresholds. Part geometry and bezel contours can shift between regional production runs; photograph your original unit and compare the button layout and printing location before ordering. Technical repair documentation is not supplied, and a certified automotive electrician should handle the removal/reinstallation to preserve moisture seals and connector locking tabs. Digital image reproduction may show slight tonal variation, and hand-taken measurements tolerate a standard 1–2 mm deviation. This item functions as a high-grade aftermarket substitute and does not reproduce manufacturer trademarks.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Furnishing reliable replacement components and transparent customer service across Europe since 2002 via intercyprus.com.