BMW E90 E91 Engine Start Stop Switch Button Ignition 6949913

BMW E90 Start Stop Button Switch is an original control element for the starting system, designed for BMW 3 Series E90 models. It provides convenient, modern one-button engine start, maintaining the system's factory logic. This is a practical solution for drivers who want to restore full functionality to the start/stop panel after the original component has failed or worn out.

Specifications and technical data

• SKU: 6949913-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6949913
• Substitutable numbers: 61316949913, 6949913, 9154945
• Category: Switches & Controls

Technical Characteristics and Purpose

The start/stop button belongs to the group of Switches, Control Elements, and Ignition Switches, responsible for operating key electrical functions in the vehicle. The element works with the factory BMW electronic ignition system, allowing the engine to be started and stopped without using a traditional mechanical key.

As a dedicated part for BMW, the switch is structurally adapted to the factory center console in the E90, which helps maintain a cohesive cockpit appearance and the correct operation of the vehicle's comfort and security systems.

Function in the BMW Starting System

The Start Stop Switch acts as the user interface in the electronic starting system. After inserting the key card into the slot and meeting safety conditions (e.g., gear selector position, signal from the clutch or brake pedal), pressing the button sends a signal to the control modules responsible for starting the engine.

A correctly functioning switch:

• ensures a reliable, repeatable response to pressing,
• maintains clear, ergonomic access to the start/stop function,
• works with BMW's factory safety systems and immobilizer.

Benefits of Using an Original BMW Switch

Using a dedicated button in the BMW E90 allows for maintaining factory fit and electrical compatibility. This means no need for wiring modifications, preserving the original interior appearance, and ensuring correct cooperation with the vehicle's control modules.

Key advantages include:

• maintaining visual consistency with other center console elements,
• correct operation of the start/stop function according to BMW standards,
• the ability to restore full functionality to the starting system after the previous button has been damaged.

Condition and Service Application

This item is a used part, removed from a vehicle, and intended as a replacement part for servicing or repairing the starting system. It is suitable for both typical replacement of a worn-out button and for comprehensive refurbishment of the control panel in a BMW E90, where maintaining the original electrical architecture is important.

Related BMW Control Elements

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

Safety and Selection of Used Components

When working with vehicle electrical and control systems, it is important to pay attention to the correct selection of components and their integration with the existing wiring. For other components, especially in the braking system, knowledge about how to responsibly choose used parts can be helpful. This topic is discussed in more detail in the article: Second-Hand Braking Systems: How to Safely Choose Discs, Calipers, and ABS?.