Fuel Tank Mercedes-Benz W169 W245 M266 Petrol 50L With Pump A1694701701

Fuel Tank Mercedes-Benz W169 W245 M266 Petrol 50L With Pump is an original fuel system component designed for A-Class and B-Class models with the M266 petrol engine. Thanks to the integrated fuel pump, it provides a complete service solution that restores the proper operation of the fuel system while maintaining factory mounting geometry. It is a practical choice for users who value proven OEM components and a precise fit for the specific Mercedes-Benz platform.

Specifications and technical data

• SKU: A1694701901-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1694701901
• Substitutable numbers: A1694701701, A 169 470 17 01, A1694701901, A 169 470 19 01, A1694700494, A 169 470 04 94, KZ
• Weight: 150
• Fuel type: Petrol
• Category: Fuel Tanks & Filler Necks

Purpose and function in the fuel system

The presented tank is a component of the Fuel tanks and filler pipes category, designed to work with the petrol supply system in Mercedes A-Class W169 and B-Class W245 vehicles with the M266 unit. It is responsible for the safe storage of fuel, stable pump power supply, and proper fuel routing to other system components, in accordance with the manufacturer's requirements.

The presence of an integrated fuel pump allows for the simultaneous handling of two key areas: tank capacity and the generation of the appropriate operating pressure in the system. This solution reduces the number of service operations and facilitates the replacement of the entire assembly in case of problems with the petrol engine's fuel supply.

Key technical and functional features

The tank has been constructed for use with petrol, which is important for the material's resistance to long-term contact with fuel and operational additives. The 50-liter nominal capacity ensures a range typical for this class of vehicles, while maintaining compact dimensions adapted to the chassis architecture of the W169 and W245 models.

The design includes space for fuel system equipment, including the pump assembly, which allows for maintaining factory hose routing and proper venting. Using an original tank helps avoid problems with leaks, improper mounting, or collisions with other chassis components.

Condition, fitment, and installation aspects

The item is offered as a used part, which in practice means a favorable compromise between cost and maintaining the manufacturer's original specification. In the case of fuel tanks, this is of particular importance – the geometry, the arrangement of connectors, and mounting points remain consistent with the factory design, which facilitates installation and reduces the risk of modifications.

Before installation, a standard workshop procedure is recommended: checking for leaks, the condition of connectors, hose sockets, and a visual assessment of the surface. A properly selected tank with a fuel pump helps eliminate typical symptoms of fuel system wear, such as starting problems, power drops, or unstable engine operation at low fuel levels.

Benefits of using an original tank with a pump

Using an original tank assembly with a pump in a Mercedes A-Class or B-Class brings a number of practical benefits:

• maintaining factory fitment to the body and exhaust system,
• correct position of the fuel level sensor and stable readings on the instrument cluster,
• consistency with the existing fuel and electrical installation,
• reduced risk of leaks thanks to matched connectors and mounts.

For workshops and users, this means shorter installation time and a lower risk of needing additional modifications. Choosing such a solution is particularly beneficial for comprehensive fuel system maintenance in vehicles that are used intensively or have high mileage.

Expanding fuel system maintenance and supporting materials

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other elements from the same group, such as additional tanks, hoses, or filler pipes, check the available parts in the Mercedes fuel tanks and filler pipes category.

To better plan service work and understand the relationships between the tank, pump, and injectors, it is worth using the guide: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses diagnostics, selection by part numbers, and operating principles.

When selecting a used tank, a practical step-by-step guide may also be helpful: Guide: how to choose the right car part by VIN and OEM number, which facilitates verifying the compatibility of the part with a specific vehicle equipment version.