Active Brake Assist Functions Limited Mercedes: A Diagnostic Case Study Active Brake Assist (ABA) is one of the most critical safety systems in modern Mercedes-Benz vehicles. It automatically applies the brakes in emergency situations, helping prevent or reduce the severity ...
Quick Summary “Active Brake Assist Functions Limited — See Owner’s Manual” means your Mercedes’s automatic emergency braking system has detected a fault and cannot guarantee full collision-avoidance intervention. Your standard brakes are unaffected. The most common causes are a dirty ...