Mercedes SL63 R231 Roadster Window Lifter Regulator Rear Left N/S A2316700303

The Rear Left Window Regulator for Mercedes SL63 R231 Roadster is an original part from the Window Regulators and Motors group, designed for precise operation of the rear left window in a roadster body. It ensures stable window guidance, proper closing, and correct integration with the vehicle's factory electrical system.

Specifications and technical data

• SKU: A2316700303
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2316700303
• Substitutable numbers: A2316700303, A 231 670 03 03
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Vehicle Application and Function

The presented window regulator is specifically designed for the rear left section of the Mercedes SL63 R231 generation. It is responsible for the smooth raising and lowering of the window, maintaining it in the correct position, and ensuring proper sealing of the passenger compartment, which is important for both acoustic comfort and protection of the interior from the elements.

Thanks to its dedicated placement in the rear driver's side area, this component works with factory guides, mountings, and the electrical harness, facilitating installation and reducing the risk of fitment issues.

Construction and Technical Fitment

The regulator belongs to the group of components responsible for window control in a vehicle, combining mechanical parts with electric drive. The construction designed for this specific roadster body model ensures:

• appropriate geometry for window guidance within the door/side panel,
• compatibility with factory mounting points,
• integration with the original window control system in the Mercedes SL63 R231.

This precise fit translates into stable mechanism operation, reduced play, and proper window closing during daily use.

Benefits of Using an Original Mercedes Part

Using an original window regulator for the Mercedes SL63 R231 allows for maintaining the structural integrity of the entire window system. Factory fitment minimizes the risk of jamming, uneven operation, or improper window sealing against the rubber trims. This is particularly crucial in a roadster body, where precise window alignment affects driving comfort at higher speeds.

The part from the Window Regulators and Motors group has been developed for seamless integration with the vehicle's electronics, simplifying diagnostics and potential post-installation adaptations. In practice, this means fewer potential problems after replacement and greater predictability in the operation of the entire system.

Application in Service and Repairs

The rear left window regulator for the Mercedes SL63 R231 Roadster is suitable for both standard replacement of a damaged mechanism and more extensive bodywork and paint repairs in the rear section of the vehicle. It is a particularly useful solution in situations where:

• guides or cables have suffered mechanical damage,
• there are issues with window closing after a collision or repair of the door/panel,
• a complete mechanism replacement is necessary instead of time-consuming refurbishment.

By retaining the original design, it is possible to quickly restore full functionality to the rear left window without the need for modifications to the electrical system or mounting components.

Assistance with Selection and Additional Information

When selecting a window regulator for a specific Mercedes SL63 R231 trim level, it is important to ensure compatibility with the factory control system and body configuration. If necessary, comparing it with the removed part or verifying it against part numbers in the service documentation can be helpful.

If you are planning a comprehensive repair or upgrade of the side window area in your Mercedes and require other parts from the same group, such as lifting mechanisms, electric drives, or guides, check the available parts in the Mercedes Window Regulators and Motors category.

For more extensive service work, including the powertrain, an expert guide on selecting used components may be helpful – you can find it in the article Why Buy Used Gearboxes and Engines – Facts Instead of Myths, which discusses procedures for verification by part numbers and practical aspects of operating used parts.