AIRMATIC control unit, component description - GF32.22-P-5110RF
Model 205 with code 483 (ADVANCED AGILITY package) with code 489 (AIRMATIC)
Shown on model 205.0
Location
The AIRmatic control unit is located under the left front seat.
Tasks
The AIRmatic control unit has the following tasks:
- Reading in of signals
- Evaluation of input factors
- Actuation of components
Reading in of signals
The input factors are read in over the following connections:
- Direct line
- Chassis FlexRay (Flex E)
Direct line
The signals from the following components are read in via a direct line:
- Circuit 30g (switched battery positive)
- Terminal 31
- Left rear level sensor (B22/7)
- Left front level sensor (B22/8)
- Right front level sensor (B22/9)
- Right rear level sensor (B22/10)
Chassis FlexRay
The AIRmatic control unit uses the chassis FlexRay and receives signals from the following control units:
- Left lower control panel (N72/4)
- Electronic Stability Program control unit (N30/4)
- Fully integrated transmission control unit (Y3/8n4)
- Electronic ignition lock control unit (N73)
Evaluation of input factors
The input factors that have been read in are evaluated by the integrated microprocessor and the affected components are then actuated.
Actuation of components
Components are actuated with the following lines:
- Direct line
- Chassis FlexRay
Direct line
The following components are actuated via a direct line:
- AIRmatic pressure reduction valve (A9/1y1)
- AIRmatic relay (K40/8kR)
- Left front level control valve (Y36/6y1)
- Right front level control valve (Y36/6y2)
- Left rear level control valve (Y36/6y3)
- Right rear level control valve (Y36/6y4)
- Left front axle damping valve unit (Y51)
- Solenoid valve 1, left front (Y51y1)
- Solenoid valve 2, left front (Y51y2)
- Right front axle damping valve unit (Y52)
- Solenoid valve 1, right front (Y52y1)
- Solenoid valve 2, right front (Y52y2)
- Left rear axle damping valve unit (Y53)
- Solenoid valve 1, left rear (Y53y1)
- Solenoid valve 2, left rear (Y53y2)
- Right rear axle damping valve unit (Y54)
- Solenoid valve 1, right rear (Y54y1)
- Solenoid valve 2, right rear (Y54y2)
Chassis FlexRay
The AIRMATIC control unit is a participant of the chassis FlexRay and sends signals to the following control units:
- Instrument cluster (A1), via the electronic ignition lock control unit and the user interface CAN (CAN HMI)
- Electronic Stability Program control unit
- ME-SFI control unit (N3/10) (with gasoline engine) or CDI control unit (N3/9) (with diesel engine), via the powertrain control unit and the engine CAN (CAN C)
- Fully integrated transmission control unit
| Wiring diagram of AIRmatic control unit | PE32.22-P-2101-97FBA |