U11a600 - Mercedes-benz
: Radar sensors are often located behind the front grille or bumper; road grime, mud, or snow can block their signals. Hardware Alignment
The Mercedes-Benz fault code is a highly specific automotive Diagnostic Trouble Code (DTC) that indicates a communication breakdown with the front or rear radar sensor control units .
Mercedes has publicly stated its goal to cut powertrain costs by 30% compared to current EQ models (EQS, EQE). The U11A600 is a weapon to achieve that. mercedes-benz u11a600
Generic OBD-II scanners often display only "U11A6" or misidentify it as a communication code. Use , iCarsoft MB V2.0 , Autel MaxiCOM , or Launch X431 to read the actual Mercedes subcode. Pay attention to freeze frame data – note engine load, RPM, and intake air temperature at the moment the fault triggered.
If your vehicle has no mechanical binding and sensor voltages are correct, visit a Mercedes dealer or independent specialist to check for ECU updates. TSB #LI07.50-P-064083 specifically addresses false faults on M276 engines. Cost: 0.5–1.0 hours labor. : Radar sensors are often located behind the
Clean the front Mercedes emblem and the corners of the bumpers thoroughly.
The fault code is a classic example of modern engineering complexity. It is rarely a sign of catastrophic failure but almost always an indicator of carbon buildup, a lazy sensor, or a chafed wire. By following the diagnostic steps above—starting with a visual inspection and moving to live data analysis—you can avoid unnecessary part replacements. The U11A600 is a weapon to achieve that
If the flap pivot bushings are worn or the carbon has hardened beyond cleaning, Mercedes does not sell internal flap parts separately. You must replace the entire upper intake manifold. OEM manifold costs $1,200–$1,800; aftermarket (Dorman, VAICO) runs $400–$700. Labor adds another 3–4 hours.