Yes. A stored U11A600 will cause your vehicle to fail emissions testing in states that use OBD2 plug-in inspections (California, New York, etc.). The monitors will show "incomplete."

In modern Mercedes-Benz vehicles, safety features like Active Distance Assist (DISTRONIC), Active Brake Assist, and Collision Prevention Assist rely heavily on radar sensors mounted behind the front bumper or grill. These sensors continuously stream data over the vehicle’s Controller Area Network (CAN bus) to processing units like the Electronic Stability Program (ESP) or the Electrical Power Steering (N68) control unit.

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 the above steps fail, you will need a professional to use the to pinpoint which sensor is causing the malfunction and check for CAN bus communication errors.

If steering functions normally and no Advanced Driver Assistance Systems are actively failing on the road, the fault code can be safely ignored , as it does not impose any operational restrictions on the vehicle.

[Inspect Bumper / Emblem Surface] ➔ [Check Internal Wiring Pins] ➔ [Verify Bracket Alignment] ➔ [Run Software Recalibration Drive]

Mercedes-benz U11a600 [new] Jun 2026

Yes. A stored U11A600 will cause your vehicle to fail emissions testing in states that use OBD2 plug-in inspections (California, New York, etc.). The monitors will show "incomplete."

In modern Mercedes-Benz vehicles, safety features like Active Distance Assist (DISTRONIC), Active Brake Assist, and Collision Prevention Assist rely heavily on radar sensors mounted behind the front bumper or grill. These sensors continuously stream data over the vehicle’s Controller Area Network (CAN bus) to processing units like the Electronic Stability Program (ESP) or the Electrical Power Steering (N68) control unit.

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 the above steps fail, you will need a professional to use the to pinpoint which sensor is causing the malfunction and check for CAN bus communication errors.

If steering functions normally and no Advanced Driver Assistance Systems are actively failing on the road, the fault code can be safely ignored , as it does not impose any operational restrictions on the vehicle.

[Inspect Bumper / Emblem Surface] ➔ [Check Internal Wiring Pins] ➔ [Verify Bracket Alignment] ➔ [Run Software Recalibration Drive]

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