Start Stop Switch BMW F20 F21 F22 F30 F31 Engine Button Yellow 9250734

The Start Stop Switch BMW F20 F21 F22 F30 F31 Engine Button Yellow is an original engine start button from the Switches, Controls, and Ignition Switches group, designed for select BMW F-series models. Its distinctive yellow finish allows you to refresh the look of your cockpit and restore the full functionality of the factory start/stop engine system.

Specifications and technical data

• SKU: 9250734-8
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9250734
• Substitutable numbers: 61319250734, 9250734
• Color: Yellow
• Category: Switches & Controls

Intended Use and Function in the Control System

The presented start/stop button is a control element responsible for initiating the engine start and stop procedure in selected BMW F-series models. It works with the vehicle's factory electronic system, integrating with the keyless start system and engine control modules.

As part of the Switches, Controls, and Ignition Switches group, this component is responsible for:

• transmitting a signal to the start system upon pressing the button,
• handling the engine shut-off function after the drive is completed,
• maintaining visual consistency of the center console with other control elements.

Construction, Color Scheme, and Interior Integration

The button has a compact design adapted to the factory socket in the center console of the relevant BMW models. The yellow color makes the element stand out against standard finishes, facilitating quick location of the button during daily use and giving the interior a more dynamic character.

The housing geometry and mounting method are designed to ensure stable seating in the control panel and proper cooperation with the vehicle's electrical harness. This ensures that the button retains its factory appearance and ergonomic operation after installation.

Benefits of Using an Original BMW Part

Using an original BMW start/stop switch ensures:

• full electrical compatibility with the vehicle's wiring and control modules,
• correct operation of the engine start and stop functions without the need for installation modifications,
• stylistic consistency with other cockpit elements,
• technically correct replacement of a worn or damaged button.

The item comes from a dismantled vehicle, allowing for economical repair of the control system while maintaining the original manufacturer's specifications.

Condition, Verification, and Practical Application

The button is offered as a used part, which in practice means it has undergone use in a vehicle but can still be used as a functional replacement in another BMW unit. Such components are often chosen for control panel repairs when the existing button has suffered mechanical wear or surface damage.

Before installation, a standard check of the vehicle's electrical system and the correct seating of the socket in the console is recommended to ensure stable operation of the start/stop system after replacement.

If you are planning a comprehensive repair or upgrade of the engine control area in your BMW and need other parts from the same group, such as function buttons, control modules, or ignition switch components, check the available parts in the BMW Switches, Controls, and Ignition Switches category.

Technical Knowledge and the Used Parts Market

Choosing used, original control components is a popular solution among owners of premium cars who want to maintain the vehicle's factory specifications at reasonable service costs. Similarly, owners of other premium brands utilize parts from dismantled vehicles, which you can read more about in an article dedicated to Mercedes-Benz: Used Mercedes Parts – Original Components from Dismantling.

If you are interested in a broader context of operating and servicing BMW powertrains, as well as the impact of the aftermarket parts availability on maintenance costs, it is worth familiarizing yourself with a comparative analysis of BMW diesel engines: BMW N47 vs M57 / M57N / M57N2 – Ranking of Legendary Diesels.