BMW G01 G02 G05 G06 G07 G14 G20 Turbocharger Oil Return Line M40i B58D 8679020

BMW G01 G02 G05 G06 G07 G14 G20 Turbocharger Oil Return Line M40i B58D is an original component from the Turbochargers and parts group, designed for the engine lubrication system in modern BMW models. This used OEM part ensures factory geometry, proper oil flow, and compatibility with the M40i B58D engine, facilitating a hassle-free replacement for a worn-out line. It is a practical solution for workshops and users who want to maintain proper turbocharger lubrication while keeping service costs reasonable.

Specifications and technical data

• SKU: 8679020
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8679020
• Substitutable numbers: 11428679020, 8679020
• Part type: Turbocharger Hose
• Category: Turbos & Parts

Function of the oil return line in the M40i B58D engine

The oil return line is responsible for safely draining lubricating oil from the turbocharger back into the engine's lubrication system. A properly selected component:

• stabilizes oil circulation within the turbocharger,
• reduces the risk of oil overheating in the turbo housing,
• helps maintain proper pressure in the lubrication system,
• minimizes the risk of leaks at the connections. Thanks to its factory design, the line works with the M40i B58D engine lubrication system in accordance with the manufacturer's specifications, which is particularly important for turbocharged units.

Compatibility with BMW G-series models

The offered line has been designed for use in selected BMW G-series models, such as the G01, G02, G05, G06, G07, G14, and G20 equipped with the M40i B58D unit. This means that the connection geometry, length, and routing of the line are adapted to the factory layout in the engine bay of these bodies. In practice, this translates to:

• easier installation without the need for modifications,
• proper positioning relative to the turbocharger and engine block,
• maintenance of required clearances relative to other components.

Application in the Turbochargers and parts category

As an element from the Turbochargers and parts group, the oil return line is an essential component of the entire forced induction system. Replacing a worn or leaking line is recommended, among other things, during:

• turbocharger regeneration or replacement,
• detected oil leaks in the turbo area,
• upgrading the forced induction system in the M40i B58D engine. Choosing an original line allows you to maintain turbocharger operating parameters and reduce the risk of failure resulting from improper lubrication.

Characteristics of the used OEM part

The offered oil return line is an original BMW part from the secondary market. Compared to aftermarket replacements, it ensures:

• factory fitment to mounting points,
• compliance with manufacturer requirements regarding oil flow,
• consistency with other elements of the lubrication and forced induction system. For workshops specializing in the BMW brand and users who value original solutions, this is a reasonable compromise between quality and repair cost.

Support for repairs and upgrades

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as oil lines, connectors, or mounting accessories, check out the available parts in the BMW Turbochargers and parts category. When planning a repair after a collision or a major drivetrain failure, it is worth considering the use of original parts from the secondary market – they allow you to maintain the vehicle's factory parameters at lower service costs. You can find more practical tips in the article Repairing a car after a crash: how to restore full efficiency using used original parts and not overpay?.