BMW 3 5 Series E90 LCI F10 F30 F31 F32 Automatic Gearbox Flywheel Ring 7800051

Description

BMW 3 5 Series E90 LCI F10 F30 F31 F32 Automatic Gearbox Flywheel Ring is an original Mini group component designed for use with automatic transmissions. Thanks to its factory design, it ensures stable torque transmission and proper vibration damping in the drivetrain, which translates into engine performance and driving comfort. This is a solution for users looking for a proven OEM component for professional repair or replacement.

Specifications and technical data

• SKU: 7800051
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7800051
• Substitutable numbers: 11228506670, 8506670, 11227800051, 7800051, ŁS
• Gearbox type: Automatic
• Category: Flywheels & Flexplates

Purpose and function of the flywheel

The presented flywheel from the Flywheels and gears category operates in the drivetrain of BMW E90 LCI, F10, F30, F31, and F32 series vehicles equipped with an automatic transmission. Its task is to store kinetic energy, stabilize crankshaft rotation, and work with the automatic transmission to ensure smooth starting, gear shifting, and reduction of jerking. A properly selected flywheel reduces dynamic loads in the drivetrain and supports the smooth operation of the power unit.

Benefits of using an original Mini component

The Mini OE flywheel has been designed for specific power units and the characteristics of the automatic transmission, which ensures proper geometric fit and appropriately selected inertia. Using an original component allows you to:

• maintain the factory performance parameters of the drivetrain,
• preserve compatibility with the automatic transmission control software,
• minimize the risk of improper engagement with the starter ring gear,
• reduce vibrations transmitted to the body and the drivetrain.

For users who expect stable automatic transmission operation and predictable vehicle behavior under various load conditions, using an original flywheel is a technically sound solution.

Operating characteristics with an automatic transmission

The flywheel designed for an automatic transmission works with the torque converter, which is why its design and balance have a direct impact on the smoothness of gear changes. A properly selected component:

• supports smooth gear engagement at low engine speeds,
• stabilizes engine operation while driving at a constant speed,
• reduces noise and vibration during rapid acceleration,
• facilitates starting thanks to correct cooperation with the starter.

For workshops specializing in automatic transmission service, the use of a dedicated flywheel is important from the point of view of the durability of the entire system.

Condition, verification, and practical application

The item comes from the used Mini OE parts segment, which allows for economical repair while maintaining factory specifications. Before installation, it is recommended to perform a standard inspection of the working surfaces, the ring gear, and the mounting points to ensure proper seating on the crankshaft and cooperation with the converter. Replacing the flywheel is especially recommended in case of symptoms such as noticeable vibrations when starting, noise in the transmission area, or starting problems resulting from ring gear damage.

Modernization expansion and technical knowledge

If you are planning a comprehensive repair or modernization of the drivetrain area in your BMW and need other elements from the same group, such as additional gears, drivetrain elements, or related mounting components, check the available parts in the Mini Flywheels and gears category.

For those who treat drivetrain modifications as a form of tuning and want to consciously select used components, a guide describing how to safely use parts from the secondary market will be useful – you can find it in the article The best used parts for tuning your car.