Mini Cooper One D R55 R56 W16 Diesel Fuel Tank Supply System Filter 8517166

Mini Cooper One D R55 R56 W16 Diesel Fuel Tank Supply System Filter is an original diesel fuel supply system component designed for Mini diesel engine models. It ensures precise fuel filtration, which translates into stable engine operation and reduces the risk of damage to sensitive components. By maintaining factory specifications, this is a structurally matched solution for the Mini fuel system and tested for performance in real-world road conditions.

Specifications and technical data

• SKU: 8517166-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 8517166
• Substitutable numbers: 13328517166, 8517166, KZ
• Fuel type: Diesel
• Category: Fuel Filters

Purpose and role in the fuel system

The presented fuel filter belongs to the Fuel filters category and is dedicated to Mini vehicles with diesel engines. Its task is to separate solid contaminants and particles that could accelerate the wear of precision components, such as the high-pressure pump or injectors. A properly selected filter reduces the risk of power loss, uneven engine operation, and starting problems caused by low-quality fuel.

In diesel engines, maintaining fuel cleanliness is particularly important because the injection system operates under high pressure and is sensitive to even minor contaminants. Using the correct fuel filter helps maintain stable engine performance parameters and supports even fuel delivery across the entire load range.

Benefits of using an original Mini filter

The fuel filter designed for the Mini Cooper One D R55 and R56 provides:

• factory fitment for the housing and fuel lines,
• properly selected flow rate for the diesel engine,
• stable filtration parameters under typical urban and extra-urban operating conditions.

Thanks to the original design, the filter works with the fuel system without the need for modifications, which facilitates installation and service. Using a component from the same product line as the factory Mini equipment allows for maintaining the vehicle's technical consistency and minimizing the risk of improper fitment.

Technical and operational characteristics

The filter is adapted for use with diesel fuel, which means an appropriate filter element construction and material resistance to the specifics of diesel oil. In practice, this translates into:

• effective capture of solid particles present in the fuel,
• maintaining proper fuel flow under various engine loads,
• reducing the risk of system aeration when installed correctly.

The element comes from the segment of used original Mini parts, which allows for an economical restoration of the vehicle's factory configuration. This type of component is particularly attractive to users looking for OEM-compliant solutions while maintaining reasonable service costs.

Application in service and diagnostics

Replacing the fuel filter is one of the key stages of periodic maintenance in diesel engines. Regular replacement of this element helps reduce the risk of damage to injectors and the fuel pump, and also supports maintaining smooth engine operation. In the case of power issues, jerking during acceleration, or starting difficulties, checking the condition of the fuel filter is one of the basic diagnostic steps.

To better understand the relationships between the fuel filter, injectors, and the pump, it is worth consulting a guide describing the entire supply system. A detailed discussion can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, where the principles of selecting parts by OEM numbers and practical operational tips are presented.

Additional information and related products

If you are planning a comprehensive repair or upgrade of the supply system area in your Mini and need other elements from the same group, such as filter cartridges, filter housings, or fuel lines, check the available parts in the Mini fuel filters category.

If you are interested in a broader approach to selecting original components from the secondary market, our guide to popular used parts may be helpful – more information can be found in the material The best used car parts – a guide to the most frequently chosen original parts.