BMW 3 Series E46 Switch ASC 6901591

BMW 3 Series E46 Switch ASC is an original component from the Switches, control elements and ignition locks group, designed for operating the traction control system in BMW 3 Series E46 vehicles. This used OEM component ensures factory-standard operation, compatibility with the vehicle's electrical system, and predictable response of electronic systems.

Specifications and technical data

• SKU: 6901591
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6901591
• Substitutable numbers: 61316901591, 6901591, PK
• Category: Switches & Controls

Function and application of the ASC switch in the BMW E46

The ASC button is responsible for controlling the traction control system, allowing the driver to quickly enable or disable functions that support vehicle stability. Located in the center console, it works with electronic modules responsible for monitoring the drive wheels, which translates into safer acceleration on slippery surfaces.

Thanks to the preservation of the original design and markings, the ASC switch is intuitive to use, and its integration with the factory interior lighting system allows for clear operation even after dark. It is a practical solution for replacing a worn or damaged button without interfering with the electrical wiring.

Benefits of using an original BMW switch

Choosing an original ASC switch for the BMW E46 from the Switches, control elements and ignition locks group allows you to maintain the consistency of safety systems and the aesthetics of the factory cockpit. The element is designed for a specific model platform, which means it:

• fits the standard mounting slot in the center console,
• works with the original electrical wiring without modifications,
• maintains the factory operating parameters of the ASC system,
• does not require shape adaptation or additional mounts.

A used OEM component is a reasonable compromise between cost and quality – you retain the manufacturer's original specification while optimizing your repair or interior renovation budget.

Condition, fitment, and installation aspects

The item is offered as a used part, which in practice means it comes from disassembly and has been verified for further use. This type of switch is particularly useful for:

• replacing a damaged ASC button (e.g., due to cracking, worn symbols, or issues with button response),
• restoring full functionality of the traction control system after electrical system repairs,
• renovating the cockpit while maintaining the original BMW look and ergonomics.

Thanks to factory dimensions and connectors, installing the switch is simple for an experienced mechanic or auto electrician – there is no need to modify the panel or use adapters.

Expanding the control system in BMW – related elements

If you are planning a comprehensive repair or upgrade of the control zone in your BMW and need other elements from the same group, such as console function buttons, light switches, or ignition lock components, check the available parts in the BMW switches, control elements and ignition locks category.

When planning broader service work on cars of this brand, it is also worth familiarizing yourself with the topic of selecting used premium components – practical tips on the cost-effectiveness and safety of using original parts from disassembly can be found in the article Used parts for Mercedes - original parts from disassembly, which discusses the approach to premium class components in the context of costs and durability.

If you are interested in a broader perspective on the operation and repair of BMW cars using original parts from disassembly, additional information is provided in the blog post BMW N47 timing chain – typical failure and repair using original BMW parts, which shows the practical advantages of using used OEM elements in this brand.

Summary

BMW 3 Series E46 Switch ASC is a functional, original control element that allows you to restore proper operation of the traction control system and a consistent look to the center console. By choosing a used OEM switch, you gain compatibility with the electrical system, predictable operation of safety systems, and an aesthetic fit to the interior characteristic of the BMW E46.