Mercedes-Benz A E Class W169 W211 Brake Pedal Switch Stop Light A0015454409

Mercedes-Benz A E Class W169 W211 Brake Pedal Switch Stop Light is a precision lighting control component responsible for correctly activating the brake lights during braking. A properly selected sensor provides a clear signal to drivers behind you, supports the operation of safety and electronic stability control systems, and contributes to daily driving comfort. This component from the Switches, control elements and ignition switches group is designed for users who expect stable, repeatable brake system performance in their Mercedes models.

Specifications and technical data

• SKU: A0015454409
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0015454409
• Substitutable numbers: A0015456709, A 001 545 67 09, A0015454409, A 001 545 44 09, KZ
• Category: Switches & Controls

Function and application of the brake light switch

The brake light switch in Mercedes W169 and W211 models is responsible for generating an electrical signal when the brake pedal is pressed. This signal is used not only to activate the brake lights but also by control modules responsible for the operation of driver assistance systems. A properly functioning component helps avoid dashboard errors, cruise control malfunctions, or interference with safety systems.

Thanks to a design tailored to the specifics of the W169 and W211 models, the sensor works with the factory wiring harness and original connectors. This ensures a stable connection, reduces the risk of contact looseness, and facilitates diagnostics during service inspections.

Construction and characteristics of the control element

The presented sensor belongs to the Switches, control elements and ignition switches group, meaning it is designed as an actuator that works with the vehicle's electronics. The internal switching mechanism reacts to the movement of the brake pedal, and the housing is adapted for installation in a dedicated socket at the pedal assembly. The applied design allows for multiple operating cycles without loss of signal repeatability.

A solution of this type is particularly important in Mercedes-class cars, where electronic systems are closely integrated. A stable signal from the brake sensor affects proper cooperation with control modules, which translates into predictable vehicle behavior on the road.

Benefits of using an original Mercedes component

Choosing a brake light switch dedicated to specific Mercedes generations allows you to maintain the factory operating parameters of the brake system. Proper fitment to the electrical installation and brake pedal construction reduces the risk of incorrect installation and eliminates the need for modifications. This is a particularly beneficial solution for users who expect predictable operation and easy service maintenance.

A component from this group, sourced from dismantling, allows for maintaining a high level of functionality at reasonable repair costs. For many drivers, this is an effective way to restore full brake system efficiency without sacrificing the manufacturer's original specifications.

Condition, verification, and preparation for installation

The offered sensor is a used component, which in practice means it comes from a previously operated vehicle and has been verified for suitability for further use. Such components are often chosen by users who are looking for a reasonable compromise between repair costs and maintaining the original operating characteristics of the system.

Before installation, it is recommended to perform a standard check of the socket, wiring, and correct seating of the sensor in the pedal assembly. A properly installed component works with the vehicle's installation in plug-and-play mode, without the need for additional software adaptation.

Expanding the control system and selecting other components

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

When selecting used components for cars of this brand, it is worth paying attention to their origin and compatibility with factory specifications. More practical information on the advantages of original components from dismantling can be found in the article Used parts for Mercedes – original parts from dismantling, and additional arguments for choosing used OEM components are described in the guide 5 reasons why a used OEM part is a better choice than a replacement.