Mercedes W164 OM629 Diesel Fuel Injection Strip Rail Sensor A6290700795

Mercedes W164 OM629 Diesel Fuel Injection Strip Rail Sensor is an original diesel engine fuel system component, designed for precise control of fuel rail operating parameters. Thanks to its factory origin from the Mercedes brand, it ensures proper compatibility with the vehicle's electronics and stable operation of the fuel injection system in a Diesel engine.

Specifications and technical data

• SKU: A6290700795
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6290700795
• Substitutable numbers: A6290700795, A 629 070 07 95
• Fuel type: Diesel
• Category: Additional Fuel Injection Parts

Purpose and function in the fuel injection system

The Mercedes W164 OM629 Diesel Fuel Injection Strip Rail Sensor operates within the diesel engine fuel system, monitoring key parameters of the fuel rail. A properly functioning component of this type supports:

• stable diesel engine operation across the full load range,
• correct fuel dosing by the injectors,
• consistent cooperation with the engine control unit,
• maintaining the appropriate operating standards of the OM629 unit.

A properly selected sensor from the Other fuel injection system parts group is essential when diagnosing problems with dynamics, rough idling, or errors stored in the engine control unit.

Compatibility and fit for Mercedes W164 OM629

The presented component has been designed for use in the OM629 unit mounted in the W164 body, which translates into proper geometric and electrical fitment. As a result:

• installation is straightforward, without the need for modifications to the wiring,
• compliance with the factory operating parameters of the fuel injection system is maintained,
• the engine control unit receives signals with characteristics consistent with the manufacturer's specifications.

Such fitment is particularly important in modern diesel engines, where the fuel injection system operates under strictly defined conditions and requires consistent input data.

Characteristics of the used component

The offered sensor comes from the secondary market, which allows for cost-effective repair of the fuel injection system while maintaining the original manufacturer's specifications. A used OEM component is a solution that in many cases:

• reduces service costs compared to a new part,
• enables faster restoration of vehicle performance,
• ensures the preservation of the factory system design.

For workshops and users looking for a reasonable compromise between price and quality, such a component is a practical alternative to non-original replacements.

Benefits of using an original sensor in a Diesel engine

Diesel engines are particularly sensitive to the quality of fuel injection system components. Using an original fuel rail sensor in a Mercedes W164 with an OM629 unit can translate into:

• more predictable engine behavior under various operating conditions,
• easier computer diagnostics thanks to signal compatibility with the control unit software,
• reduced risk of recurring service interventions resulting from part mismatch.

For vehicles powered by Diesel fuel, maintaining component consistency within the fuel injection system has a direct impact on the durability of the power unit and user comfort.

Service support and additional information

When planning a fuel system repair, it is worth verifying the mounting compatibility of the sensor with the specific vehicle configuration using data such as the product SKU, OEM part number, or available interchangeable numbers presented in the technical specifications section. This information facilitates the selection of the correct component for both individual users and professional workshops.

If you are planning a comprehensive repair or upgrade of the fuel injection area in your Mercedes and need other elements from the same group, such as sensors, lines, or additional rail components, check the available parts in the Other Mercedes fuel injection system parts category.

To better plan service work and reduce vehicle downtime in the workshop, it is worth reading the guide describing how the availability of used OEM components affects repair speed – details can be found in the article Availability of car parts off-the-shelf vs. repair time – how do used OEM parts shorten workshop stays?.