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, jC,_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!).