Assembling Rear Spring Strut

Information 

Explanation of the coloured dots on the coil spring 

• Coloured dots -1-  provide information about the spring variant.
• Coloured dot -2-  indicates the tolerance group.

  Coloured dots -1 and 2-  are relevant for positioning the circlip on the vibration damper (see table below).

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  Coloured dots on the coil spring

  1. Position circlip -1-  using > VW161A - Circlip pliers  in the relevant groove -A, B, C, D, E-  on the vibration damper -2-  .

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     Positioning circlip

     Circlip position 

     Chassis variant	Vehicle	Spring variant (-Coloured dot 1-  )	Tolerance group (-Coloured dots 2-  )	Circlip position
     PASM 0 mm	C2 (S)/C4 (S) Coupe	Pure white/zinc yellow	Yellow	Groove B
     			Blue	Groove C
     	C2 (S)/C4 (S) Cabriolet	Pure white/zinc yellow	Yellow	Groove C
     			Blue	Groove D
     PASM -10 mm	C2(S)/C4(S) Coupe/Cabriolet	Pure white/light blue	Yellow	Groove B
     			Blue	Groove C

  2. Fit all remaining components -1 to 14-  on the piston rod.

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     Component overview of rear spring strut

  3. Align supporting mount -as shown-  with the vibration damper.

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     Positioning supporting mount

     Information 

     Make sure that the coil spring is positioned correctly at the upper spring plate -1-  .

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     Position of coil spring

  4. Clamp spring strut in > VAS 6908 - Stationary Spring Compressor  in such a way that the mounting plates of the spring tensioning device are positioned on the spring strut supporting mount. > Rear spring strut in spring tensioning device 

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     Rear spring strut in spring tensioning device

     WARNING: Preloaded or pressurised components 

     • Risk of squashing or bruising 

       → Do not reach into the danger area.

       → Relieve tension on components before starting work.

       → Secure components to prevent them from loosening suddenly.

  5. Pre-tension the spring strut until the tension on the piston rod is relieved.
  6. Tighten nut -1-  using > T10001 - shock absorber set  (> Tightening torque 35 Nm (25.8 ftlb.) + 2 Nm (1.5 ftlb.)  ). Counter at the hexagon -2-  on the piston rod at the same time.

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     Rear spring strut

  7. Relieve tension on the spring strut (there must be no tension on the coil spring!).