BMW 6 E63 E64 LCI 635d Plastic Bare Fuel Tank Diesel 7186086

BMW 6 E63 E64 LCI 635d Plastic Bare Fuel Tank is an original diesel fuel system component designed for the facelifted diesel version. Thanks to its factory design, it ensures precise fitment to the bodywork and proper integration with fuel system accessories. This is a used, complete tank housing, ideal for professional repair or replacement of a damaged part.

Specifications and technical data

• SKU: 7186086-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7186086
• Substitutable numbers: 16117186086, 7186086, BG
• Weight: 150
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and compatibility

The presented fuel tank has been designed specifically for BMW 6 Series E63/E64 LCI 635d models, i.e., the facelifted version with a diesel engine. The construction takes into account the chassis geometry of these body styles, the placement of mounts, and the routing of lines, which allows for installation without modifications and maintains factory mounting points.

The component belongs to the Fuel tanks and filler pipes group, responsible for the safe storage of fuel and its delivery to the supply system. As such, it is crucial for the proper operation of the fuel system and the stability of driving parameters.

Construction and technical properties

The tank is made of plastic, which helps reduce vehicle weight and increase corrosion resistance compared to steel structures. This type of solution is used as standard by the manufacturer, ensuring appropriate rigidity, tightness, and resistance to diesel fuel.

As a so-called "bare" tank, the component serves as a base for transferring accessories from the existing system, such as fuel level sensors or the pre-supply pump, according to the specific configuration of the vehicle. Thanks to the preservation of the factory shape and mounting points, the installation of accessories is predictable and repeatable.

Benefits of using an original tank

Choosing an original fuel tank from a BMW dismantling allows you to maintain compliance with factory technical documentation and safety parameters. You avoid problems with leaks, collisions with suspension components, or incorrect routing of fuel lines, which can occur with ill-fitting replacements.

A used component of this class is also a reasonable compromise between repair cost and quality – especially in the case of the complex fuel system in the 635d version, where the precision of the tank's manufacture is important for proper venting and stable engine fuel supply.

Condition, verification, and service application

The product comes from dismantling and is offered as a tested tank for re-installation, intended for workshops specializing in the BMW brand and informed individual users. Before installation, a standard service procedure is recommended: visual inspection, flushing the interior, and verifying the ports and sockets for tightness.

Due to the nature of the fuel system in diesel engines, replacing the tank is particularly important in the case of mechanical damage, corrosion of accessories mounted to the tank, or previous unprofessional repairs in this area.

Technical support and part selection

The component has a dedicated OEM part number and interchangeable numbers, which facilitates unambiguous identification and selection for a specific vehicle configuration. If necessary, compatibility can be verified by the VIN or by consulting a specialized BMW service center.

To better understand the role of the tank in the entire supply system and to properly plan the repair, it is worth using the advice contained in the article: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. You will find practical tips there regarding diagnostics, operation, and component selection.

Repair economy and environmental aspect

Choosing a used fuel tank from dismantling is not only a saving but also real support for the circular economy. Reusing functional components reduces waste and lowers the demand for the production of new parts. You can find more on this topic in the material: Circular economy in your garage – how choosing used parts from dismantling really supports environmental protection and your wallet?.

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