If you just replaced the Active Brake Assist (ABA) unit on your Mercedes and now you're facing Active Brake Assist Not Available, SRS/Restraint System Malfunction, or Bonnet Error, this video shows you exactly how to fix them — step by step.

These errors appear because the new ABA module needs to be properly coded, initialized, and calibrated after installation. In this tutorial, I’ll walk you through the full process, including:

???? How to correctly initialize the new ABA module
???? How to clear Restraint (SRS) and Bonnet errors
???? Why these errors appear after module replacement
???? How to verify ABA communication and coding
???? Tools you may need (Xentry, DTS, etc.)
???? The fast method to complete calibration safely

This guide works for most Mercedes models equipped with Active Brake Assist, including:
W204, W212, W205, W213, W176, W246, X204, X253, and more.

If you’re repairing your Mercedes at home or in a workshop, this video will save you hours of troubleshooting and expensive dealership fees.

???? Timestamps:
00:00 Intro
00:35 Tool Requirements
01:03 How to Fix The Errors

???? Our Manuals:
Master Mercedes Diagnostic with Xentry/DAS_WIS_Starfinder: https://autoexplain.com/product/master-mercedes-diagnostic-with-xentry-wis-das-starfinder/
Vediamo Expert Techniques For Mercedes ECU Programming: https://autoexplain.com/product/vediamo-expert-techniques-for-mercedes-ecu-programming/
DTS Monaco for rookie: https://autoexplain.com/product/dts-monaco-engineering-guidebook/
DTS Monaco Advanced - Unlock 100 hidden functions: https://autoexplain.com/product/dts-monaco-advanced-vol-2-100-hidden-features-mercedes/
Master VAG Coding – Vol 1: Start With Odis, Elsawin, Petka: https://autoexplain.com/product/vag-expertise-advanced-coding-and-diagnostic-techniques/
BMW Diagnostic & Coding Guide: A Self-Training Manual for Technicians: https://autoexplain.com/product/bmw-diagnostic-coding-guide-repair-manual/
Jaguar Land Rover Programming & Coding Guidebook: https://autoexplain.com/product/jaguar-land-rover-programming-coding-guidebook/

???? About AutoExplain
We provide professional Mercedes-Benz and Audi technical solutions worldwide:
???? Training & Books – Step-by-step guides for Vediamo, DTS Monaco, ODIS, and more.
???? Remote Technical Support – ECU coding, programming, and map updates.
???? Video Tutorials – Free repair and diagnostic guides on our YouTube channel.
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