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Home >> Audi >> 2020 >> SQ8 Premium Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (Self-Leveling Suspension) >> 43 Self-Leveling Suspension >> Air Suspension >> Overview - Air Lines

Overview - Air Lines

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GWWA43-10441Courtesy of AUDI
  1. Solenoid Valve Block
  2. "Purple" Air Line
    • Connector tightening specification 3 Nm
    • From the solenoid valve
  3. "Brown" Air Line
    • Connector tightening specification 3 Nm
    • To the air supply unit
  4. "Green" Air Line
    • Connector tightening specification 2 Nm
    • To the right front air spring
  5. "Blue" Air Line
    • Connector tightening specification 2 Nm
    • To the right rear air spring
  6. "Purple" Air Line
    • Connecting piece tightening specification 3.5 Nm
    • For the pressure reservoir
  7. Pressure Reservoir
  8. Air Line
    • Connector tightening specification 2 Nm
    • Left "red", right "green"
    • From the solenoid valve
    • Front air line routing. Refer to Fig 1.
    • Do not loosen the residual pressure retaining valve
  9. Front Air Spring
  10. Rear Air Spring
  11. Air Line
    • Connector tightening specification 2 Nm
    • Left "black", right "blue"
    • From the solenoid valve
    • If there is a damage claim replace completely. The repair of a damaged air line is not permitted.
    • Rear air line routing. Refer to Fig 2.
  12. Air Supply Unit with Level Control System Compressor Motor -V66-
  13. "Brown" Air Line
    • Connector tightening specification 3 Nm
    • To solenoid valve block
  14. "Black" Air Line
    • Connector tightening specification 2 Nm
    • To the left rear air spring
  15. "Red" Air Line
    • Connector tightening specification 2 Nm
    • To the left front air spring

Air Line Routing to the Front Air Spring

Fig 1: Air line routing to the front air spring
GWWA43-10253Courtesy of AUDI

-- Contains the air line -5- on the clip -2- in the wiring harness -1-.

3 -  Front Air Spring

4 -  Residual Pressure Retaining Valve - Do Not Loosen

Air Line Routing on the Subframe to the Rear Air Spring

Fig 2: Air Line Routing on the Subframe to the Rear Air Spring
GWWA43-10348Courtesy of AUDI

-- Secure the air line -1- with the clips -arrows- on the subframe -2- as shown.

Pressure Reservoir - Tightening Specification

Fig 3: Pressure Reservoir - Tightening Specification
GWWA43-10353Courtesy of AUDI

-- Tighten the bolt -arrows- to 20 Nm.