According to official technical service bulletins from the NHTSA :
Diagnosis alone: $180–$250. Replacement of one sensor: $350–$550 total. If a boost leak is found, $800–$1,500. For ECU software: $200–$400.
Generic OBD2 scanners often misinterpret U-codes. You need XENTRY, iCarsoft MB II, or Autel MaxiSys. Look for additional U-codes (e.g., U116800, U010000). They tell you which module is missing.
If you see these warnings, your car's radar-based safety features may be temporarily unavailable until the underlying issue is resolved.
“Collision prevention assist plus inoperative” warning in Mercedes mercedes-benz u11a600
In many cases, this specific code is a caused by a software glitch in the diagnostic system rather than a mechanical failure. If your vehicle is driving normally and the code only appears during a scan, it can often be safely ignored. 🔍 Key Details of U11A600
Verify that the car battery is healthy and providing consistent voltage. Step 5: Advanced Diagnostics (Star Diagnosis)
Your Mercedes will enter a fallback mode where the ECU uses substitute values from the mass air flow sensor and throttle position. You will experience:
Mercedes-Benz Model 247 (B-Class / GLB) equipped with SA code 243 (Active Lane Keeping Assist). According to official technical service bulletins from the
Drive directly to a repair shop. Do not take a road trip. Do not tow a trailer. U11A600 can degrade into a no-start condition within hours or days.
Disconnect the wiring connector and look for any signs of blue or green moisture corrosion inside the terminal plug.
Use an OBD-II scanner capable of reading Mercedes-Benz specific codes to clear the code and check if it returns. Sometimes, a temporary communication hiccup causes the code. Step 3: Inspect for Physical Damage
When this communication fault occurs, it typically triggers several warning messages on the vehicle's instrument cluster. The most common symptoms reported by Mercedes-Benz owners include: For ECU software: $200–$400
If your issue occurred after driving in heavy rain or a car wash, you should:
: Frequently reported in B-Class (B250e) models (2014–2017) and newer Model 247 vehicles with Lane Keeping Assist. 🛠️ Causes & Fixes 1. Diagnostic Software Error (Most Common)
Yes, but with major caveats.
: Mercedes-Benz documentation states that this fault code can be ignored , as it does not typically restrict steering functions. The Role of the Radar Sensor System