Mercedes SLK R170 Window Lifter Regulator Mechanism Rear Left N/S A1706700103

Mercedes SLK R170 Window Lifter Regulator Mechanism Rear Left N/S is an original window regulator mechanism designed for installation on the rear left side of the vehicle. As part of the Window Regulators and Motors category, it ensures proper guidance and smooth raising and lowering of the window, which translates into user comfort and correct cabin sealing. This is a practical solution for Mercedes owners who want to restore the full functionality of the electric window control without compromising on fitment.

Specifications and technical data

• SKU: A1706700103
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1706700103
• Substitutable numbers: A1706700103, A 170 670 01 03
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and fitment for Mercedes SLK R170

The mechanism has been designed specifically for the Mercedes SLK R170 generation, taking into account the characteristic roadster body construction with an extended rear cabin area. The placement on the rear left side of the vehicle guarantees proper alignment with the guides, mounts, and the geometry of the door or side panel. This maintains the correct window operating geometry, which reduces the risk of jamming and uneven closing.

Function and performance parameters

The lifter is responsible for stable window guidance throughout the entire range of motion, working in conjunction with the vehicle's electric control system. The design of the mechanism allows for the transfer of drive from the motor to the window in a controlled manner, which translates into predictable operation and repeatable positioning. A properly selected regulator minimizes the load on mounting elements and reduces wear on other window system components.

Benefits of using an original mechanism

Using an original mechanism in a Mercedes SLK R170 allows you to maintain the factory operating parameters of the window system. Key advantages include:

• Structural compatibility – perfect fit for factory mounting points and guides.
• Consistent cooperation with the existing electric window control system.
• Reduced risk of improper closing, play, and excessive window vibration.
• Ability to restore full functionality of the rear left window without body modifications.

Condition, verification, and service application

The item comes from disassembly and is offered as a used window lifter, which represents a reasonable compromise between repair costs and maintaining the vehicle's original specifications. This type of part is suitable both for typical repairs after a mechanism failure and for comprehensive service of the window area when it is necessary to replace several components at once. Choosing an original mechanism reduces installation time and facilitates service work thanks to predictable fitment.

If you are planning a comprehensive repair or upgrade of the window area in your Mercedes and need other elements from the same group, such as guides, lifter motors, or complete window mechanisms, check the available parts in the Mercedes Window Regulators and Motors category.

Part selection by OEM number and technical support

To ensure that the selected window lifter will be fully compatible with your Mercedes SLK R170, it is worth verifying compatibility by OEM number and vehicle data. It may be helpful to use a practical guide that describes the process of matching components by manufacturer markings step-by-step – you can find it in the article Guide: how to choose the right car part by VIN and OEM number.

Why consider used components

In the case of elements such as window lifters, choosing a used component can be technically justified, especially when you want to maintain the original vehicle specification while optimizing costs. You can read more about the approach to purchasing used drive components and the principles of their selection in the expert material Why it is worth buying used gearboxes and engines – facts instead of myths, which organizes the most important arguments and verification procedures.