Brake Module Mercedes R170 W202 Brake Power Assist BAS Control Unit A0255454732

Brake Module Mercedes R170 W202 Brake Power Assist BAS Control Unit is a specialized component from the Electronic control modules and controllers group, responsible for precise management of the BAS brake assist system in selected Mercedes models. This solution is designed for users who expect stable braking system performance, the preservation of the vehicle's factory characteristics, and consistency with the original electronic architecture.

Specifications and technical data

• SKU: A0255454732
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0255454732
• Substitutable numbers: A0255454732, A 025 545 47 32
• Category: ECUs & Computer Modules

Function and role of the BAS module in a Mercedes

The presented controller is responsible for controlling the Brake Assist (BAS) system, which is an emergency braking support system that analyzes signals from sensors and assists the driver in emergency situations. A properly functioning BAS module:

• supports the generation of appropriate pressure in the braking system during sudden braking,
• ensures consistent operation with other vehicle safety systems,
• maintains braking characteristics in accordance with Mercedes manufacturer specifications.

Thanks to this, the braking system maintains predictable, repeatable performance parameters, which translates into driving comfort and safety.

Compatibility and integration with vehicle electronics

The module has been designed as a component dedicated to specific Mercedes model configurations, such as the R170 or W202, while maintaining full integration with the factory electrical installation. This means:

• the use of original control logic,
• proper cooperation with the vehicle's controller network,
• the possibility of diagnostics using standard service tools intended for the Mercedes brand.

Such a solution allows for maintaining software consistency and braking system performance parameters without the need to use universal or adapted solutions.

Product characteristics and service application

The offered Mercedes brand component comes from the Electronic control modules and controllers group, which means it is intended for operation in the demanding environment of the engine compartment or the vehicle's installation space, taking into account thermal and vibration loads. In practice, the module will prove useful in the following applications:

• repair of the BAS system in case of controller errors or improper operation of the brake assist,
• restoration of the factory performance characteristics of the safety system,
• servicing of vehicles where it is necessary to replace a damaged module with an original equivalent.

For workshops specializing in the Mercedes brand, this is a practical solution that allows for maintaining high repair repeatability and reducing diagnostic time.

Product condition and benefits of choosing a used module

The item is offered in used condition, which in practice means the possibility of obtaining a functional, original controller at a more favorable price than a new component. Choosing this solution means:

• a chance to maintain the original electronic architecture without interfering with the installation,
• reduction of repair costs while maintaining compliance with factory solutions,
• the possibility of quick replacement of a damaged module with a component of the same specification.

For users who value consistency and predictability of safety system operation in a Mercedes, this is a reasonable compromise between quality and service cost.

Technical support and additional information

To better understand the importance of original electronic components in premium cars and the impact of used parts on maintaining the vehicle's character, it is worth reading the article on our blog: Audi and emotions in their purest form – how used parts help maintain the brand's DNA. Although the text concerns a different brand, it clearly shows how important the consistency of electronics and equipment is in modern cars.

If you are planning a comprehensive repair or upgrade of the braking system zone and control electronics in your Mercedes and need other elements from the same group, such as safety system controllers, assist modules, or vehicle system management units, check the available parts in the Mercedes electronic control modules and controllers category.