Contents: Air suspension - general technical…⇩ General specifications ⇩ Tightening torque specifications ⇩
Air suspension - general technical characteristics
| Name | Specification |
| Body height: | |
| "Off road" mode | 55mm (2.1 inches) taller than normal |
| "Access" mode - can be selected while the vehicle is moving | 50mm (1.9 inches) lower than normal |
| Height | Configurable using T4 and special tools |
| Altitude sensors: | |
| Location | 4 per vehicle - one sensor for each wheel |
| Height sensor lever color coding: | |
| Left, front and back | WHITE |
| Right, front and back | black |
| Height sensor operating voltage: | |
| Supply voltage | 5 V - supplied from the air suspension control unit |
| Output voltage | Left Front and Right Rear - Drops to 0.5V when compressed. Right Front and Left Rear - Rises to 4.5V when compressed. |
| Air struts: | |
| Type | Guided air element located around a twin-tube shock absorber |
| Pressure: | |
| Normal - front axle | from 800 to 1000 kPa (from 8.0 to 10.0 bar) (from 116.0 to 145 lbf/in²) |
| Normal - rear axle | from 500 to 800 kPa (from 5.0 to 8.0 bar) (from 72.5 to 116.0 lbf/in²) |
| Burst pressure | 3500 kPa (35 bar) (507.5 lbf/in²) |
| Maximum pressure in the pneumatic element - full compression at full curb weight of the vehicle | Approximately 2700 kPa (27 bar) (391.5 lbf/in²) |
| Pneumatic system compressor: | Comes with dehumidifier, has electric control, servo-controlled outlet valve and two temperature sensors |
| Management is carried out | ECU (electronic control unit) |
| Maximum pressure | 1680 kPa (16.8 bar) (243.6 lbf/in²) |
| Receiver: | |
| Volume | 9 l (0.31 cubic feet) |
| Working pressure | 1750 kPa (17.5 bar) (253.75 lbf/in²) |
| Maximum working pressure | 2300 kPa (23 bar) (333.5 lbf/in²) |
| Receiver valve block | Includes a pressure sensor for monitoring the pressure in the pneumatic elements and receiver |
| Valve blocks: | |
| Front of the car | 2 corner valves, 1 bypass valve - installed on the front bumper mount |
| Rear of the car | 2 corner valves, 1 bypass valve - installed in the left rear wheel arch |
General specifications
| Name | Specification |
| Gap between the underside of the rubber boot of the alignment rod and the body bracket | 10,0 mm (0,393 in) |
Tightening torque specifications
| Description | Nm | lb-ft |
| Air suspension compressor bolts | 10 | 7 |
| Air suspension compressor lower cover bolts | 10 | 7 |
| Voss fitting for mounting to the front valve block | 2,5 | 1,7 |
| Voss fitting for fastening to front and rear air springs | 3,5 | 2,6 |
| Voss fitting for mounting to rear valve block | 2,5 | 1,7 |
| Voss fitting for mounting to air suspension receiver | 5 | 4 |
| Voss nipple for mounting to the air suspension receiver valve block | 2,5 | 1,7 |
| Air suspension control unit bolt | 10 | 7 |
| Air suspension receiver bolts | 23 | 17 |
| * Stabilizer bar strut nuts | 115 | 85 |
| Toe-in adjustment rod bolt | 175 | 129 |
| Nut for fastening the inner ball joint of the toe-in rod | 133 | 98 |
| Toe-in adjustment rod nut | 103 | 76 |
| Toe-in adjustment rod lock nut | 130 | 96 |
| Lower Front Camber Adjustment Bolt | 275 | 203 |
| Rear bolts of the lower axle angle adjustment lever | 275 | 203 |
| Tie Rod End Locknuts | 53 | 39 |
| Rear wheel alignment bolts | 133 | 98 |
| Nuts for fastening the front and rear air strut to the suspension support cup | 63 | 46 |
| Nut and bolt for fastening the front and rear air strut to the lower suspension arm | 300 | 221 |
| * Upper nut of front and rear air strut | 98 | 72 |
| Heat shield mounting bolts | 10 | 7 |
| *+ Half shaft nut | 350 | 258 |
| Wheel speed sensor bolt | 10 | 7 |
| Brake Disc Guard Bolts | 10 | 7 |
| Wheel hub bolts | 115 | 85 |
| *Lower arm ball joint lock nut | 115 | 85 |
| * Tie rod end ball joint | 76 | 56 |
| Height Axle Sensor Torx Head Bolts | 2,2 | 1,5 |
| Wheel nuts | 140 | 103 |
* A new nut must be installed + After tightening, secure the nut with a cotter pin
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