Mercedes W166 Anti Pinch Tailgate Switch Position Sensor Strip Trim A1668700951

Mercedes W166 Position Sensor Strip A1648201910 is a specialized component mounted on the rear of the body, responsible for the correct positioning and stable seating of position sensors within the tailgate system. Thanks to its factory design for the Mercedes brand, the strip ensures proper sensor alignment, which translates to predictable operation of comfort and safety systems related to the rear of the vehicle.

Specifications and technical data

• SKU: A1668700951
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1668700951
• Substitutable numbers: A1668700951, A 166 870 09 51
• Location on the vehicle: Rear
• Category: Boot & Hatch Lids

Purpose and Function of the Sensor Strip

The presented position sensor strip is a part from the Tailgate and Rear Components group, designed for installation on the rear of Mercedes W166 series vehicles. Its function is to maintain the sensors in a stable, repeatable position relative to the tailgate and body structure, which is crucial for the proper operation of control systems for the position and movement of elements in the rear of the car.

A correctly fitted strip minimizes the risk of play, misalignment, and incorrect position readings, which is particularly important in vehicles equipped with advanced tailgate control systems. Using an original design dedicated to a specific body platform allows for the preservation of factory system operating parameters.

Construction and Body Fitment

The strip has been designed for installation on the rear of the vehicle, taking into account the geometry of the tailgate and adjacent structural elements. The arrangement of mounting points and sensor sockets conforms to the manufacturer's original specifications, facilitating installation and reducing the need for additional modifications.

In practice, this means that once the strip is correctly fitted, the sensors achieve a predictable, repeatable working position. This ensures consistent input signals for the control units responsible for tailgate operation, which is important for both daily use and troubleshooting potential faults.

Benefits of Using an Original Strip

Using a position sensor strip dedicated to the Mercedes W166 offers a number of practical technical benefits:

• maintaining the factory sensor positioning geometry at the rear of the body,
• reducing the risk of position reading errors due to improper installation,
• easier system diagnostics due to predictable component placement,
• compatibility with the tailgate structure and other rear-end components.

A used part allows for economical repair or replacement of a damaged strip while maintaining compatibility with factory solutions. For workshops and users, this means the ability to restore proper system operation without resorting to universal or adapted solutions.

Application in the Tailgate System

The position sensor strip works in conjunction with components responsible for controlling and monitoring the position within the tailgate area. Proper seating of the sensors on the strip affects:

• precise detection of the position of moving elements at the rear of the vehicle,
• stable operation of systems related to opening and closing the tailgate,
• reduction in the need for recalibration resulting from incorrect installation.

By maintaining the original mounting concept, the strip forms a cohesive part of the system, which is particularly important in vehicles equipped with advanced comfort and electronic systems in the rear of the body.

Support with Selection and Additional Materials

If you are planning a comprehensive repair or upgrade of the rear area of your Mercedes and need other parts from the same group, such as reinforcements, mounts, or additional panels, check the available parts in the Mercedes Tailgate and Rear Components category.

For a better understanding of the impact of individual body components and accessories on vehicle operation and the cost-effectiveness of using used parts, an article describing the evolutionary design of a popular compact sports model may be helpful. Practical comparisons and an overview of upgrades can be found in the material Hot Hatch Legend: The Evolution of the VW Golf GTI from Mk1 to Mk8 – Design Changes and VW Car Parts.