Mercedes C118 W177 W247 NOX Sensor Holder Bracket Support Mount A2474922400

Mercedes C118 W177 W247 NOX Sensor Holder Bracket Support Mount is an original mounting component from the Holders, mounts and mounting parts group, designed for the precise positioning of the NOX sensor on the right side of the vehicle. It provides a stable, factory-standard mount that helps maintain the correct sensor position within the exhaust system and supports the proper operation of the emission control system.

Specifications and technical data

• SKU: A2474922400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2474922400
• Substitutable numbers: A2474922400, A 247 492 24 00
• Location on the vehicle: Right
• Category: Mounts, Brackets & Hardware

Purpose and function of the NOX sensor holder

This holder has been designed specifically for Mercedes C118, W177, and W247 series models, where it is responsible for securely mounting the NOX sensor on the right side of the vehicle. Proper sensor positioning in this area is crucial for reliable exhaust parameter readings, and consequently, for the correct operation of the engine control unit and the exhaust treatment system.

As a structural element from the mounting group, the bracket minimizes vibrations and stresses acting on the sensor, which reduces the risk of mechanical damage and electrical wiring issues. This ensures the measurement system operates stably, and emission-related error diagnostics are more predictable.

Construction, fitment, and installation

The holder has been developed as a part dedicated to a specific Mercedes body platform, which translates into an excellent fit with factory mounting points. The mounting holes and the geometry of the bracket are tuned to the vehicle's original design, facilitating installation and reducing the need for additional modifications.

In practice, this means that:

• the NOX sensor is held in a stable position relative to the exhaust system,
• the proper distance from components exposed to high temperatures is maintained,
• electrical wires and connectors can be routed according to the factory layout.

Such a solution promotes trouble-free servicing and limits the risk of damage resulting from improper installation or the use of mismatched replacements.

Characteristics of the used component

The offered holder is a used part, which in practice means it comes from vehicle dismantling and retains the original geometry and mounting points specified by the manufacturer. For many users and workshops, this is a beneficial solution, as it allows combining factory fitment with an attractive price compared to new parts.

In the case of mounting elements such as brackets and holders, the integrity of the structure is paramount – the absence of cracks, excessive deformation, or signs of tampering that could affect the stability of the sensor mount. A used, original holder meets these requirements much better than random, universal solutions.

Application in service and emission system repairs

Replacing the NOX sensor holder is particularly recommended in situations where:

• mechanical damage has occurred within the exhaust system area,
• the NOX sensor has been removed multiple times and the factory mount has weakened,
• there are issues with reading reliability, and visual inspection indicates improper sensor positioning.

By using a dedicated holder, you reduce the risk of recurring faults related to looseness, vibrations, or stresses acting on the sensor. This is a practical solution for both professional workshops and users who care about the proper functioning of the emission system in their Mercedes.

Complementary Mercedes Holders, mounts and mounting parts

If you are planning a comprehensive repair or upgrade of the exhaust system area and sensor mounting zone in your Mercedes and need other elements from the same group, such as additional brackets, clamps, or wiring harness fasteners, check out the available parts in the Mercedes Holders, mounts and mounting parts category.

How to effectively source used mounting components

When selecting mounting elements for the emission system, it is worth using One-Stop-Shop solutions, where you can select holders, brackets, and other components related to a given repair in one place. This allows you to shorten the time spent sourcing parts, reduce the number of deliveries, and better control the consistency of the solutions used.

If you want to learn how to reasonably plan the purchase of original used parts and avoid problems typical of cheap replacements, read the article: Comprehensive supply: from the engine to the smallest clip – how to source used car parts in one place?.