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

Model 238 

Up To Model Year 2021 

With Code 23P (Drive package) 

Shown on model 238.3 

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 longitudinal directional vehicle control to the Intelligent Drive control unit (N62/4)
• Transmission of object data for longitudinal directional vehicle control to the Intelligent Drive control unit
• Transmission of object data to the Intelligent Drive control unit for plausibility checking of the object data from the MFK stereo (A40/13)
• Transmission of object data for collision-avoiding intervention by the brake system to the 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 via the chassis FlexRay (Flex E) to the Intelligent Drive control unit.

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 assembly parts 
• Transmission of initial parameters 

Reading in input factors 

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

• Radar request
• Diagnosis request

Evaluation of input factors 

Input factors are evaluated by the integrated control electronics.

Actuation of assembly parts 

The front near and long-range radar sensor actuates Radom dome 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-2106-97DCA