Mercedes-Benz A-Class W168 Rear Right Door O/S Window Regulator Lifter Motor

Mercedes-Benz A-Class W168 Rear Right Door O/S Window Regulator Lifter Motor is an original component from the Window regulators and motors group, designed for the rear right window in W168 series models. It is a practical solution for drivers who want to restore the efficient, smooth operation of the window lifting mechanism while maintaining the factory design.

Specifications and technical data

• SKU: A1687301446-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1687301446
• Substitutable numbers: A1687301446, A 168 730 14 46, EM
• Location on the vehicle: Rear, Right
• Offset (ET):
• Category: Window Motors & Regulators

Purpose and function of the window regulator

The window regulator is responsible for stable guidance and controlled movement of the window in the rear right door, working in conjunction with the factory control system in the Mercedes W168. A properly selected component ensures correct window positioning, reduces the risk of jamming, and limits the load acting on the guides and seals.

Thanks to its precise fit for the specific vehicle location, installation is straightforward, with no need for structural modifications to the door. This is particularly important for vehicles where maintaining the original geometry and body sealing is a priority.

Benefits of using an original component

Using a window regulator dedicated to the Mercedes W168 allows you to maintain consistency with the vehicle's factory design. Proper alignment with mounts and guides translates into:

• stable window operation across the full range of motion,
• reduced risk of mechanism overload,
• reduction of noise and vibrations while driving,
• easier diagnostics during future inspections.

This component is particularly important in daily use – it affects the comfort of the rear cabin area as well as safety, enabling efficient window closing in emergency situations.

Installation characteristics

The window regulator is prepared for operation in the rear right part of the body, which makes it easier for mechanics and users servicing the car themselves to correctly locate the mounting points. The design intended for a specific Mercedes model reduces the time required for fitting and minimizes the risk of installation errors.

When replacing, it is recommended to check the condition of the guides, seals, and door mounts to fully utilize the potential of the newly installed component and ensure uniform operation of the entire window lifting system.

Mercedes window regulators and motors – expansion and service

If you are planning a comprehensive repair or upgrade of the door and window area in your Mercedes and need other elements from the same group, such as lifting mechanisms, electric drives, or guides, check out the available parts in the Mercedes window regulators and motors category.

Why choose used OEM components

For components such as window regulators, choosing a used OEM part often allows you to combine reasonable costs with the preservation of factory build quality and fitment. For drivers who want to better understand the differences between new and used parts and learn about the practical aspects of selection based on manufacturer markings, our expert guide Why it is worth buying used gearboxes and engines – facts instead of myths will be helpful, as it discusses, among other things, the approach to original components from the secondary market.

If you want to reduce the vehicle's downtime in the workshop and optimize service costs while maintaining the original specification, it is also worth reading the article Availability of car parts off-the-shelf vs. repair time – how used OEM parts shorten workshop stays?, which shows how the quick availability of used components can translate into a more efficient repair of the window system in your Mercedes.