BMW E90 E91 Start Stop Switch Engine Ignition Button 6949913

The BMW E90 Start Stop Switch is a factory part from the Switches, Control Elements, and Ignition Switches category, designed for operating the engine start and stop function in 3 Series models. Its original design ensures compatibility with the BMW electrical system and maintains cockpit ergonomics, leading to convenient and predictable vehicle operation. This is a practical solution for users who want to restore full Start/Stop system functionality after a failure or wear of the factory button.

Specifications and technical data

• SKU: 6949913
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6949913
• Substitutable numbers: 61316949913, 6949913, 9154945
• Category: Switches & Controls

Technical Characteristics of the BMW E90 Start Stop Switch

The switch is designed as an OEM component, thus retaining the correct electrical and mechanical parameters required by the BMW 3 Series E90 installation. Appropriately selected contact characteristics and switch design allow for stable cooperation with the vehicle's control modules, without the need for wiring modifications or additional adapters.

The element belongs to the group of switches and control elements, meaning it is an integral part of the system responsible for initiating engine operation and safely shutting it down. Using an original solution limits the risk of communication errors in the vehicle's bus and minimizes software compatibility issues.

Function and Application in BMW Control System

The BMW E90 Start Stop Switch plays a crucial role in the daily operation of the car – it is responsible for transmitting the signal to the starting control system, replacing the traditional key ignition. A properly functioning button ensures:

• reliable engine start after key recognition and fulfillment of safety conditions,
• controlled shutdown of the power unit,
• consistent operation with other comfort and safety modules.

Thanks to the preservation of original geometry and mounting method, the switch fits the factory cockpit panel, which facilitates installation and maintains interior aesthetics.

Benefits of Using an Original BMW Switch

Choosing an original switch from the Switches, Control Elements, and Ignition Switches category primarily guarantees a perfect fit for a specific BMW 3 Series configuration. In practice, this means:

• no need for electrical system modifications,
• preservation of factory operating parameters for the starting system,
• visual consistency with other dashboard elements.

This solution is particularly beneficial for professional repairs where compliance with service documentation and predictable electronic system behavior are crucial.

Used Condition and Selecting the Right Part

The offered switch is a used component, allowing for an economical restoration of Start/Stop system functionality while maintaining original specifications. Such components are often chosen by workshops specializing in the BMW brand and by informed users who prefer used parts over aftermarket alternatives with uncertain parameters.

Before purchasing, it is advisable to compare the markings with the damaged element and the vehicle's specifications – the product has an assigned OEM part number and corresponding interchangeable numbers, which facilitates unambiguous identification and selection for a specific equipment version.

If you are looking for other BMW Switches, Control Elements, and Ignition Switches for your car, check out our dedicated category: BMW Switches, Control Elements, and Ignition Switches.

When working with BMW electronic systems – such as comfort modules, controllers, or multimedia systems – it is worth familiarizing yourself with best practices for selecting used parts. The guide: How to Care for iDrive Systems and Electronic Modules in BMW Using Used Parts will be helpful, showing what to look for when choosing used electronic components.

If you are also servicing the braking system and considering purchasing used parts, read the article: Used Braking System: How to Safely Select Discs, Calipers, and ABS?, where you will find a practical checklist for selecting used components in specialized automotive stores.