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Home >> Audi >> 2014 >> A5 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 1250 (Front Suspension (Front Axle - Drive Axle) (Coupe)) >> 40 Front Suspension >> Suspension Strut And Upper Control Arm >> Suspension Strut, Servicing

Suspension Strut, Servicing

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Special Tools And Workshop Equipment Required 

OVERVIEW 

Fig 1: Exploded View Of Shock Assembly
GWWA40-10234Courtesy of AUDI OF AMERICA, LLC
  1. 1 -

    Nut

    • 50 Nm
    • Always replace if removed
  2. - Shock Absorber Mount
  3. - Washer
  4. - Mounting Bracket
  5. - Upper Spring Support
  6. - Coil Spring
  7. - Spring
  8. - Protective Sleeve
  9. - Protective Cap
  10. 10  - Lower Spring Support
  11. 11  - Lower Spring Plate
  12. 12  - Shock Absorber

The Shock Absorber Combination Installed In The Vehicle Is Indicated By The Corresponding PR Number On The Vehicle Data Plate.

Coil Spring, Removing 

Fig 2: Coil Spring, Removing
GWWA40-10252Courtesy of AUDI OF AMERICA, LLC
  1. Spring Compressor Kit - Spring Tensioner:VAG1752/1 
  2. Shock Absorber Set - Extension SW6:T10001/7 
  3. Shock Absorber Set - Reversible Ratchet:T10001/11 
  4. Shock Absorber Set - Socket:T10001/3 
  5. Spring Compressor Kit - Spring Retainer w/Inserts:VAG1752/7 

-- Clamp The Suspension Strut In The Vise With The Shock Absorber Fork Installed.

-- Mark The Installation Location Of The Mounting Bracket To The T-Pin On The Shock Absorber Tube. (Felt-Tip Pen)

-- Preload The Coil Spring With The :VAG1752/1  and :VAG1752/7  Until Upper Suspension Strut Is Free.

-- Make Sure The Coil Spring Is Seated In The Spring Holder -2- Correctly.

Fig 3: Ensuring Coil Spring Is Seated In Spring Holder Correctly
GWWA40-10253Courtesy of AUDI OF AMERICA, LLC
  1. Spring Compressor Kit - Spring Tensioner:VAG1752/1 
  2. Spring Compressor Kit - Spring Retainer w/Inserts:VAG1752/7 

-- Remove The Nut From The Piston Rod Using The Tools -2, 3 And 4-.

Fig 4: Coil Spring, Removing
GWWA40-10252Courtesy of AUDI OF AMERICA, LLC
  1. :VAG1752/1 
  2. :T10001/7 
  3. :T10001/11 
  4. :T10001/3 
  5. :VAG1752/7 

-- Remove The Individual Components Of The Pretensioned Suspension Strut And Coil Spring With The :VAG1752/1  .

Replacing The Shock Absorber 

Fig 5: Identifying Protective Cap, Bottom Spring Washer, And Spring Plate
GWWA40-0380Courtesy of AUDI OF AMERICA, LLC

-- Remove The Cap -1- And The Lower Spring Support -2-.

-- Loosen Suspension Strut -3- Using Plastic Hammer And Remove Upward.

-- Drive The Spring Plate Onto The New Shock Absorber Using A Plastic Hammer.

Coil Spring, Installing 

Fig 6: Identifying Protective Cap, Bottom Spring Washer, And Spring Plate
GWWA40-0380Courtesy of AUDI OF AMERICA, LLC

-- Install The Lower Spring Support And The Cap.

-- Position The Pretensioned Coil Spring On The Lower Spring Support. End Of Spring Coil Must Rest Against Stop -Arrow- (Permissible Play Maximum 2 mm).

Install Mounting Bracket With Spring Washer Onto Pre-Loaded Spring So That Spring Washer Makes Contact On End Of Spring Coil -Arrow- (Permissible Play Max. 2 mm).

Fig 7: Identifying Mounting Bracket With Spring Washer On Pre-Loaded Spring
GWWA40-0381Courtesy of AUDI OF AMERICA, LLC

-- Position Individual Suspension Strut Components.

-- Tighten The Nut Using Special Tools. Refer To -Item  ) SUSPENSION STRUT, SERVICING - 1 -.

-- Align The Marking On The Mounting Bracket To The T-Pin On The Shock Absorber Tube And Release The Tension In The Spring.

Mounting Bracket Installation Position 

Fig 8: Identifying Spring Mounting Tool V.A.G 1752/2
GWWA40-10257Courtesy of AUDI OF AMERICA, LLC

-- Install The :VAG1752/2  As Shown In The Illustration.

  1. :VAG1752/18-3 
  2. :VAG1752/19 
  3. :VAG1752/2 
  4. :VAG1752/19-1 

-- Tension The Suspension Strut With Spring Compressor Vertically In The :VAG1752/2  .

-- Tension The Suspension Strut So The Pin -1- Or T-Pin Engages In The Clamping Jaw Opening -2-.

Fig 9: Tension Suspension Strut So Pin Engages In Clamping Jaw Opening
GWWA40-10260Courtesy of AUDI OF AMERICA, LLC

-- In Vehicles With Electronic Damping, Make Sure The Front Damping Adjustment Valve -- -1- Or The Wire Connection -2- Does Not Rest On The Suspension Strut Tower Mount -3-.

Fig 10: Identifying Front Damping Adjustment Valve -1-, Electrical Wiring Connection -2- & Suspension Strut Mount -3-
GWWA40-10251Courtesy of AUDI OF AMERICA, LLC

-- Disengage The Locking Lever And Set The Pointer To The 0° Position -Arrow-, Then Tighten The Locking Lever.

Fig 11: Disengaging Locking Lever And Set Pointer To 0 Degrees Position And Seizing Locking Lever
GWWA42-0056Courtesy of AUDI OF AMERICA, LLC

-- Adjust The Mounting Bracket So The :VAG1752/19  For The Respective Side Of The Vehicle Can Be Bolted To The Mounting Bracket.

Left Side 

Fig 12: Bolt Adjust Gage For Suspension Strut V.A.G 1752/19 Onto Mounting Bracket
GWWA40-10256Courtesy of AUDI OF AMERICA, LLC

-- Bolt :VAG1752/19  Onto Mounting Bracket -arrows L-.

Right Side 

Fig 13: Attach Adjust Gage For Suspension Strut V.A.G 1752/19 To Mounting Bracket
GWWA40-10255Courtesy of AUDI OF AMERICA, LLC

-- Bolt :VAG1752/19  Onto Mounting Bracket -arrows R-.

-- Now Release Tension On The :VAG1752/1  And Remove.

NOTE:

When Releasing The Tension, Make Sure The Ends Of The Spring Lie On The Spring Support Stops In The Mounting Bracket And The Lower Spring Support.

-- Check Adjustment, Repeat Procedure If Necessary.

Permitted Deviation: ±2°