BMW X5 4.6IS Bedienungsanleitung PDF herunterladen (Seite 7)

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The pressure accumulator decreases the load on the compressor and significantly reduces

the time required for large changes in ride height.

The EHC 2 control module monitors system pressure via a pressure sensor mounted on

the accumulator. Normal system pressure is 15.7 +/- 0.7 bar. Minimum system pressure

is 9 bar.

The pressure accumulator's charge is sufficient to fill the four suspension struts once from

the Access position to the normal position and compensate for vehicle load up to maximum

gross weight.

Valve Unit

In the valve unit, four bellows valves and the pressure accumulator valve are activated.

The bellows valves and the pressure accumulator valve are solenoid valves which are

closed under spring pressure when de-energized.

Accumulator/Valve Unit

1. Air Lines

Yellow-Black Front

Red-Blue Rear

2. Pressure Accumulator

3. Connecting Cable

4. Pressure Sensor

5. Valve Unit

Valve Unit

1. Connections for Air Lines

2. Pressure Accumulator valve

Pneumatic Layout of Control Valve

1. Pressure Accumulator

2. Accumulator Pressure Sensor

3. Pressure Accumulator Valve

4. Bellows Valves

5. From the Air Supply Unit

NW Size of opening/tubing size in mm.

1 2 3 4 5 6 7 8 9 10 11 12 ... 19 20

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BMW X5 4.6IS Bedienungsanleitung Seite 7