Mercedes W415 Citan Sliding Door Switch Contact Sensor Rear Left N/S A4158201310

Mercedes W415 Citan Sliding Door Switch Contact Sensor Rear Left N/S is a precision electrical component responsible for the proper operation of the side door circuit in the rear left section of the bodywork. It is responsible for reliably detecting the open and closed status of the sliding door, which is crucial for the operation of interior lighting, instrument cluster alerts, and comfort systems. Thanks to the use of an original design intended for the Citan model, the sensor ensures stable operating parameters and proper mounting fitment.

Specifications and technical data

• SKU: A4158201310
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4158201310
• Substitutable numbers: A4158201310, A 415 820 13 10, 8200428704D, 82 00 428 704 D
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and function of the contact sensor

The presented sensor is a component installed in the area of the rear left sliding door in the Mercedes Citan W415 series. Its task is to transmit clear information about the door position to the electrical system, which allows for the correct operation of comfort systems and safety systems dependent on the door closure status.

In practice, a properly functioning contact sensor helps eliminate problems such as interior lighting that does not turn off, false door-open warnings, or malfunctions of the central locking system in the side sliding door area. This is particularly important in commercial vehicles, where frequent opening and closing of doors requires a stable, repeatable signal from the contact elements.

Construction and body fitment

The sensor has been designed as an element from the Doors and door panels group, intended for installation in a specific location on the body – in the rear left part of the vehicle. The appropriate shaping of the housing and the arrangement of the contacts allow for correct seating in the factory mounting points, without the need for modifications or adaptations.

A solution based on mechanical contacts ensures clear circuit switching when closing and opening the sliding door. As a result, the vehicle's electrical system receives a clear signal, which translates into predictable operation of systems related to the door position. This type of construction is proven in operation and withstands the typical loads occurring in delivery vans.

Operational characteristics and advantages of use

As a component sourced from a vehicle, the sensor is used, which in practice means a favorable cost-to-functionality ratio while maintaining the original mounting specification. Compared to replacements of uncertain origin, using a component dedicated to the Mercedes Citan reduces the risk of fitment issues and improper operation of the electrical system.

Key benefits of using this sensor in the rear left sliding door area include:

• maintaining compatibility with the vehicle's factory electrical system,
• stable operation of comfort systems dependent on the door status,
• reducing the risk of false door-open warnings,
• no need for modifications to the wiring harness or mounting points.

Application in service practice

Replacing the contact sensor is recommended in situations where symptoms occur such as intermittent or constant door-open indications when the door is actually closed, problems with turning off the interior lighting, or malfunctions of the central locking in the rear left sliding door area. Installing a component intended exactly for this position on the vehicle facilitates diagnostics and restores proper system operation.

For workshops and fleet users, it is important that using the correct sensor in the dedicated body location shortens repair time and minimizes the risk of repeated interference with the electrical system. This is a practical solution when servicing heavily used Mercedes Citan units, where reliable sliding door operation has a direct impact on the comfort of daily work.

Expanding repairs within the sliding door area

If you are planning a comprehensive repair or modernization of the side sliding door area in your Mercedes and need other elements from the same group, such as guides, locks, or seals, check the available parts in the Mercedes Doors and door panels category.

Additional technical support

When diagnosing electrical problems in the vehicle, including faults related to door contact sensors, it may be helpful to take a broader look at related vehicle systems. In the context of general operation and component durability, it is worth reading the guide material regarding the impact of temperature and loads on car components – you will find it in the article Engine cooling system – overheating, repair, and used radiators.

Summary

Mercedes W415 Citan Sliding Door Switch Contact Sensor Rear Left N/S is a practical service solution for users and workshops servicing this model. Proper fitment to the rear left body zone, compatibility with the factory installation, and functionality within the Doors and door panels group make this component a rational choice when resolving issues with door status signaling and the operation of comfort systems in the Mercedes Citan.