Front And Rear Air Suspension Valve Blocks
Front Air Suspension Valve Block
| ITEM | DESCRIPTION |
|---|---|
| 1 | Electrical connector |
| 2 | Rubber bushes |
| 3 | Air pipe connection of the front right air spring |
| 4 | Air pipe connection of the rear valve block |
| 5 | Air pipe connection of the front left air spring |
The front air suspension valve block controls the air supply and distribution to the front air springs. The front air suspension valve block contains three solenoid operated valves: two corner valves and one crosslink valve. The front air suspension valve block is located on the right side behind the secondary bulkhead panel and fixed with three rubber bushes to a bracket. The front air suspension valve block is controlled by the Chassis Control Module (CHCM) on hardwired connections.
Rear Air Suspension Valve Block
| ITEM | DESCRIPTION |
|---|---|
| 1 | Electrical connector |
| 2 | Air pipe connection of the suspension air supply unit |
| 3 | Air pipe connection of the front air suspension valve block |
| 4 | Air pipe connection of the rear left air spring |
| 5 | Air pipe connection of the air reservoir |
| 6 | Rubber bushes |
| 7 | Air pipe connection of the rear right air spring |
The rear air suspension valve block is located behind the rear right wheelarch liner and fixed with three rubber bushes to a bracket.
The rear air suspension valve block controls the:
- air supply and distribution to the rear air springs, and
- controls air distribution to and from the air reservoir.
The rear valve block contains:
- Two corner valves
- One crosslink valve
- One reservoir valve
- The system's pressure sensor.
Each of the valve solenoids is individually controlled by the Chassis Control Module (CHCM). The solenoids have the following resistance values:
| VALVE | RESISTANCE AT 25°C (±10%) |
|---|---|
| Front corner valves | 6.8 Ohms |
| Front and rear cross link valves | 3 Ohms |
| Rear corner valves and reservoir valve | 3.6 Ohms |