Short And Long-Range Radar Sensor, Component Description - GF30.30-P-3126FR

Model 257, 290 up to model year 2021 with code 23P (Drive package) 

Model 257, 290 up to model year 2021 with code P20 (Driving assistant package Plus) 

Shown on model 257 

Location 

The front near and long-range radar sensor is located in the center, in front of the radiator.

Tasks 

The near and long-range radar sensor has the following tasks:

• Actuation, power supply and evaluation of target data from the integral long range radar
• Transmission of object data for vehicle longitudinal control to the Mercedes-Benz Intelligent Drive control unit (N62/4)
• Transmission of object data for traffic area monitoring to the Mercedes-Benz Intelligent Drive control unit
• Transmission of object data to the Mercedes-Benz Intelligent Drive control unit for checking the plausibility of the stereo multifunction camera (A40/13) object data
• Transmission of object data for collision-avoiding intervention by the brake system to the Mercedes-Benz Intelligent Drive control unit

The control electronics integrated in the near and long-range radar sensor actuates the long range radar and evaluate the target data The object data from the long range radar are transferred from the front near and long-range radar sensor to the Mercedes-Benz Intelligent Drive control unit via the suspension FlexRay (Flex E).

This results in the following tasks for the near and the long-range radar sensor:

• Reading in input factors 
• Evaluation of input factors 
• Actuation of components 
• Transmission of initial parameters 

Reading in input factors 

• Radar request
• Diagnosis request

The front near and long-range radar sensor receives amongst other things the following input signals via the chassis FlexRay:

Evaluation of input factors 

Input factors are evaluated by the integrated control electronics.

Actuation of components 

The short and long range radar sensor actuates the radome heater (R61) via a direct line.

Transmission of initial parameters 

The near and long-range radar sensor transmits amongst other things the following initial parameters via the chassis FlexRay:

• Target data from the radar
• Diagnostic data

Structure 

The front near and long range radar sensor contains control electronics for actuating and evaluating the long range radar.

The front near and long-range radar sensor must be readjusted using the integrated "Service Adjustment Mode" after replacement (e.g. after an accident repair).

Wiring diagram for Mercedes-Benz Intelligent Drive control unit

PE30.30-P-2106-97XBA