Component overview

All plastic air connections must be tightened to 2 Nm.

The plastic air connections must be bolted in between marks on air hose. See MARKINGS .

1. Electrical connection compressor drive 
2. Intake- /exhaust line 
3. Air dryer 
4. Level Control Pump Temperature Sensor -G290- 
5. Auxiliary noise insulation 
6. Level Control Pressure Sensor -G291- 
   • The 4 suspension strut valves -N148-,-N149-, -N150-,N151- and Level Control Accumulator Valve -N311- are incorporated in one valve unit.
   • Tightening torque for bolt in center of valve unit between connections:4 Nm
   • Securing valve block to base plate.3.5 Nm
7. Compressor 
8. Electric motor 
9. Pneumatic vent valve 
10. Solenoid for level control system -N111- 
11. Pressure line, 2 Nm 
12. Pressure line connection at compressor 
    • Color mark:Black
13. Connection left front suspension strut 
    • Color mark:Red
14. Connection pressure reservoir 
    • Color mark:Yellow
15. Connection right rear suspension strut 
    • Color mark:Blue
16. Connection left rear suspension strut 
    • Color mark:Gray
17. Connection right front suspension strut 
    • Color mark:Green

Fig 1: Identifying Compressor Components (Allroad)

Courtesy of AUDI OF AMERICA, INC.