Bumper Radar Sensors, Component Description - GF30.30-P-3302RFM
Model 205
as of model year 2019
with code 234 (Blind Spot Monitoring)
Model 205
as of model year 2019
with code 23P (Driving Assistance package)
Model 253 (except 253.99)
as of model year 2020
with code 234 (Blind Spot Monitoring)
Model 253 (except 253.99)
as of model year 2020
with code 23P (Driving Assistance package)
Model 253.99
with code 234 (Blind Spot Monitoring)
Shown: Model 205.0
Location
The outer left rear bumper radar sensor, outer right rear bumper radar sensor, integrated outer left rear bumper radar sensor and the integrated outer right rear bumper radar sensor are inserted from the inside into the rear bumper on the corresponding side.
Tasks
The following radar sensors (short range sensors) recognize objects (e. g. vehicles) in the short range area:
- Blind Spot Assist:
- Left outer rear bumper integrated radar sensor
- Right outer rear bumper integrated radar sensor
- Distance Pilot DISTRONIC, Steering Pilot, Active Lane Keeping Assist (with code 238 (Active Lane Keeping Assist)), Active Blind Spot Assist, PRE-SAFE® rear end:
- Left outer rear bumper radar sensor
- Right outer rear bumper radar sensor
Structure
The high band width of the radar sensors allows a very precise position statement to be made and optimizes separation of objects lying close to each other.
The integrated outer right rear bumper radar sensor and the integrated outer left rear bumper radar sensor operate based on the master/slave principle. The master or slave function can be determined via the connector coding. The master function is defined for the integrated outer rear bumper radar sensor. This means that the integrated outer left rear bumper radar sensor transmits its information via the periphery CAN to the integrated outer right rear bumper radar sensor, which evaluates the corresponding information from both integrated outer rear bumper radar sensors, and transmits corresponding requests or data via the periphery CAN to the corresponding control units.
The coding (differentiation) for the individual radar sensors takes place by means of appropriate assignment with circuit 31 on pin 5 and 6.
The actuation and evaluation of the left outer rear bumper radar sensor and the right outer rear bumper radar sensor is realized by the Mercedes-Benz Intelligent Drive control unit.
The signal transmission of the radar sensors takes place over the following CAN connections:
- Periphery CAN (CAN PER)
- Radar CAN 2 (CAN S2)
Peripherals CAN
The following radar sensors communicate via the periphery CAN:
- Left outer rear bumper integrated radar sensor
- Right outer rear bumper integrated radar sensor
Radar CAN 2
The following radar sensors communicate via the radar CAN 2 with the Mercedes-Benz Intelligent Drive control unit:
- Left outer rear bumper radar sensor
- Right outer rear bumper radar sensor
| Wiring diagram for Mercedes-Benz Intelligent Drive control unit | Model 205 as of model year 2019 with code 23P (Driving Assistance Package), B92/7, B92/10 | PE30.30-P-2106-97FBA | |
| Blind Spot Assist wiring diagram | Model 205 as of model year 2019 with code 234 (Blind Spot Assist), B92/6, B92/11 | PE54.71-P-2100-97FBB | |
| Model 253.99 with code 234 (Blind Spot Assist), B92/6, B92/11 | PE54.71-P-2100-97FCA |