Mercedes-benz U11a600

Temporarily, yes. But the code will return once the ECU runs its monitoring cycle (usually a few drive cycles). Disconnecting the battery is not a fix.

This "radar sensor" is not one unit but a network of sensors integral to your car's suite of driver assistance systems. This suite commonly includes features like:

The official readout for this code typically states: Because this code ties directly to core safety systems, it is easy to assume that a costly radar sensor or module has failed.

The code is a warning sign that your engine’s air management system is compromised. While it sounds intimidating, the diagnostic path is straightforward: check live data, test for boost leaks, inspect the sensor, and update the ECU software. mercedes-benz u11a600

A torn intake boot, loose hose clamp, cracked charge air cooler, or leaking blow-off valve can cause actual manifold pressure to be lower than requested. The ECU interprets the sensor’s “lower than expected” reading as implausible.

“Collision prevention assist plus inoperative” warning in Mercedes

Using a multimeter, measure resistance between signal ground and signal output. A healthy sensor should show varying resistance (2–10 kOhms) as you apply vacuum/boost with a hand pump. No change = dead sensor. Temporarily, yes

In simpler terms: Your Mercedes’ engine control unit (ECU) has detected that the air pressure readings inside the intake manifold do not match what it expects based on throttle position, RPM, and turbocharger boost levels.

According to an official technical service bulletin issued by the National Highway Traffic Safety Administration (NHTSA) , code U11A600 frequently shows up as an inherent software glitch.

Take the vehicle out on a calibration drive. To teach the sensor back into the system, drive on a clear road with active traffic, maintaining a steady follow distance behind other vehicles at approximately 150 to 250 feet until the system calibration finishes. This "radar sensor" is not one unit but

If you are experiencing actual performance issues, the breakdown is usually:

Total inability to engage adaptive cruise control (Distronic).