Mercedes-Benz Front Brake Assist / Distance Radar Sensor – A0009055103

This front central radar sensor (Part Number A0009055103) is an essential component of the Brake Assist and Collision Warning System (Distronic) in select Mercedes-Benz models. Positioned at the front of the vehicle, it continuously monitors distance and closing speeds to enhance safety by enabling adaptive cruise control, forward collision alert, and emergency braking support.

Key Features

• OEM Replacement Part – Designed to meet Mercedes-Benz factory specifications for direct fitment and reliable function.

• Advanced Driver Assistance Integration – Supports key systems such as Distronic, Collision Prevention Assist, and Brake Assist Plus.

• Accurate Distance Monitoring – Provides real-time data for safe following distances and collision avoidance.

• Plug-and-Play Installation – Direct replacement for the original factory unit, no coding required in most cases.

Part Numbers (Interchangeable / Alternate References)

• A0009055103

• A 000 905 51 03

• MB A0009055103

• A0009050410

• 0009050410

• 000-905-04-10

• 000-905-51-03

• Also referred to as:

  • Collision Warning System Sensor

  • Front Central Radar Sensor

  • Radar Sensor for Distronic System

Compatibility

Fits the following Mercedes-Benz models (2013–2017):

• CLA-Class (CLA117)

• A-Class (W176)