All-Wheel Drive Control Unit, Component Description - GF28.19-P-3211AVL
Model 213 with transmission 725.096 up to model year 2021
Shown on vehicle with transfer case
Location
The all-wheel drive control unit is attached to the lower part of the transfer case.
Task
The all-wheel drive control unit actuates the variable drive torque distribution through the integrated all-wheel drive actuator (N45/1). The multiplate clutch in the transfer case is actuated by the all-wheel drive actuator. The drive torque to the front axle is variably regulated via this multidisk clutch. If the multiplate clutch is open, the full drive torque is transferred to the rear axle. When the multidisk clutch is closed, up to 50 % of the drive torque will be applied to the front axle. Control here is performed automatically and cannot be influenced by the driver.
The all-wheel drive control unit is programmable. The software can be exchanged (replaced).
| Input factors over a direct line from | Output factors over a direct line to | Supplemental information |
|---|---|---|
| Transmission oil temperature sensor signal (B91) | - | - |
| - | Actuation of all-wheel drive actuator (N45/1) | Integrated into all-wheel drive control unit (N45) |
| Input factors via suspension FlexRay (Flex E) from | Output factors via suspension FlexRay (Flex E) to | Supplemental information | |
|---|---|---|---|
| Electronic Stability Program control unit (N30/4) | Electronic Stability Program control unit (N30/4) | - | |
| Powertrain control unit (N127) | Powertrain control unit (N127) | - | |
| Electronic ignition lock control unit (N73) | Electronic ignition lock control unit (N73) | - | |
| AMG sports suspension control unit (N3/43) (with code 466 (Active engine mount) or code 467 (Electronic locking differential) up to model year 2018) or Drive Unit control unit (N145/1) (except code 466 (Active engine mount) and except code 467 (Electronic locking differential) up to model year 2018 or as of model year 2018) | AMG sports suspension control unit (N3/43) (with code 466 (Active engine mount) or code 467 (Electronic locking differential) up to model year 2018) or Drive Unit control unit (N145/1) (except code 466 (Active engine mount) and except code year 2018 or as of model year 2018) | - | |
| Electrical power steering control unit (N68) | - | - | |
| - | Instrument cluster (A1) | Over the electronic ignition lock control unit (N73) and user interface CAN (CAN HMI) | |
| - | ME-SFI [ME] control unit (N3/10) | Via the powertrain control unit (N127) and the drive CAN (CANC1) | |
| - | Fully integrated transmission control unit (Y3/8n4) | Via the powertrain control unit (N127) and the drive CAN (CANC1) |
| Wiring diagram for all-wheel drive control unit | Model 213 with transmission 725.096 up to model year 2021 with code M005 (Vehicles with 4MATIC/all-wheel drive) | PE28.19-P-2102-97DBA |