VW Volkswagen Passat B7 CC 35 Auto Start Stop Button Switch 3AC927137J

VW Volkswagen Passat B7 CC 35 Auto Start Stop Button Switch is an original Volkswagen control component designed for operating the engine start and stop function in vehicles equipped with a Start/Stop system. It is a practical solution for users who want to maintain the factory functionality of the ignition system and a consistent look for the center console.

Specifications and technical data

• SKU: 3AC927137J
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3AC927137J
• Substitutable numbers: 3AC927137J, 3AC 927 137 J, 3AC 927 137 BJ, 3AC927137BJ
• Category: Switches & Controls

Function and application of the Start Stop button

The presented switch belongs to the Switches, control elements and ignition locks category and is responsible for electronically triggering the start and stop procedure of the power unit in a keyless system. Thanks to its precise design, it ensures repeatable operation, proper cooperation with the vehicle's control modules, and convenient operation from the cockpit.

The component is dedicated to Volkswagen Passat models in B7 and CC variants, which allows for maintaining compatibility with the factory control system and electrical installation. Using an original switch reduces the risk of communication problems within the vehicle network and facilitates diagnostics in the event of any malfunctions.

Design and interior fitment

The Start Stop button has been designed for aesthetic integration with the center panel, ensuring a consistent interior look characteristic of Volkswagen models. The ergonomic surface and distinct tactile feedback when pressed promote reliable operation, even during daily use in city traffic.

Original mounts and the electrical connector facilitate installation in place of the factory component, without the need for wiring modifications or the use of additional adapters. As a result, the switch can be used both for standard replacement of a worn component and for restoring full functionality of the Start/Stop system after accident repairs.

Benefits of using an original switch

Choosing an original Start Stop button for a Volkswagen translates into a number of practical advantages:

• maintaining the factory functionality of the engine start system,
• reliable fitment to the vehicle's electrical installation,
• consistent appearance with other console elements,
• easier diagnostics when working with factory service software.

The product comes from the Volkswagen segment, which promotes compatibility with original control modules and limits the risk of improper interaction with the vehicle's electronics.

Condition and service purpose

The offered switch is an aftermarket component, making it an attractive solution for service repairs where the priority is to combine original construction with a more favorable purchase cost. This type of component is suitable for replacing a damaged button, restoring proper operation of the Start/Stop system without the need to interfere with other ignition system components.

Related Volkswagen control elements

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

More about the advantages of used parts

When planning repairs using dismantled components, it is worth knowing the broader context of using original used parts in premium class cars. Practical tips on the cost-effectiveness of such solutions can be found in the article Used parts for Mercedes – original parts from dismantling, which discusses the approach to selecting OEM elements from the secondary market in terms of quality and service costs.