Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Intelligent Driving Control Unit, Basic Function - GF30.30-P-9890A
Model All (4xWD)
Model All (CAR)
Overview
This document contains information on:
- General
- Function
General
The Mercedes-Benz Intelligent Drive control unit is the evaluation and arithmetic unit of the sensor system for traffic area monitoring. It evaluates object information, radar sensor system object information as well as lane data of the multifunction camera.
Function
The Mercedes-Benz Intelligent Drive control unit processes this information for the execution of the following functions:
- Front collision warning system
- Rear collision warning system
- Autonomous partial braking and maximum full-stop braking
- Distance control
- Track guidance
- Blind spot monitoring
- Evasive steering support
The Mercedes-Benz Intelligent Drive control unit is connected to the network architecture of the vehicle.
For the execution of the functions, the Mercedes-Benz Intelligent Drive control unit processes the following information:
- Operating condition for engine/drivetrain
- Driving stage engaged
- Active transmission mode
- Parking brake status
- Wheel speeds, wheel rotation directions
- Operating requests
- Parking system status (vehicles with Active Parking Assist)
- Brake system status
- Self-movement of vehicle (yaw torque)
- Accelerator pedal position
- Engine drive torque
- Steering wheel angle
- Status information of radar sensor system
- Object information:
- Front radar sensor system
- Rear radar sensor system
- Multifunction camera
- Lane data of multifunction camera
- Navigation position data
- Status information of tire pressure monitoring system
- Trailer recognition status (vehicles with trailer hitch)
The Mercedes-Benz Intelligent Drive control unit evaluates these input factors and transmits the following information and requests:
- System status
- Object information
- Requests:
- Pull away/stop
- Deactivate upshift/downshift.
- Rolling out
- Brakes
- Show system and/or warning messages, output warning tones.
- Status queries, diagnosis
| Component descriptions | |||
| Driver assistance system control unit (VRDU), component description | Model 223 | GF54.21-P-0005A | |
| Model 243 | GF54.21-P-0005B | ||
| Model 206 | GF54.21-P-0005C | ||
| Model 297 | GF54.21-P-0005D | ||
| Model 295 | GF54.21-P-0005E | ||
| Model 232 | GF54.21-P-0005F | ||
| Model 296 | GF54.21-P-0005G | ||
| Model 254 | GF54.21-P-0005H | ||
| Model 214 | GF54.21-P-0005K | ||
| Model 294 | GF54.21-P-0005N | ||
| Model 192 | GF54.21-P-0005R | ||
| Model 236 | GF54.21-P-0005S |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.