Operation CHARM: Car repair manuals for everyone.

Standard Model


Rear Strut Components (Except Carrera RS) Part 1 Of 3:




Rear Strut Components (Except Carrera RS) Part 2 Of 3:






NOTE: During service procedures, refer to the illustrations above and the information below.

Disassembly
- Compress coil spring using a coil spring compressor tool until the piston rod is unloaded.
- To loosen the bolting between piston rod and spring strut mount, hold a 7 mm open-end wrench against the piston rod.

CAUTION: Do not under any circumstances use a power impact wrench to loosen or tighten the fastening nut.

- Remove all parts from the piston rod.

NOTE: When installing new parts, follow the allocation given in the spares catalog.

Preparatory Work And Notes On Assembly
- Use new fastening nut when attaching piston rod to spring strut mount.
- Vibration dampers of different makes must not be installed on the same axle.
- It is recommended that coil springs always be replaced in pairs.

NOTE:
- If new coil springs are installed, it may be necessary to use a different intermediate section.
- Intermediate sections with the following thicknesses are available: 3.0 mm, 5.5 mm and 8 mm.





- Select the intermediate section in accordance with the tolerance group of the coil spring (color coding / colored lines on spring).

1 line = 8.0 mm intermediate section
2 lines = 5.5 mm intermediate section
3 lines = 3.0 mm intermediate section





- Press intermediate section (10) into the correct position in the spring support (9) and install spring strut mount (3).
- In the correct position, no recess (A) on the spring support must be left vacant.
- Install bellows on helper spring.
- Position vibration damper at eye in vise (use protective jaws).

NOTE:
- When installing new vibration dampers, make sure that you install left and right vibration dampers on the correct sides.
- Otherwise, the welded-on bearing block for the stabilizer mount will be on the wrong side after installation.
- Also take care to install the correct vibration damper for the running gear version (standard / sports / lowered).

Distinguishing features of left and right vibration damper
- Spare part for left side-odd third group in part number
- Spare part for right side-even third group in part number

Example:
- Part no. for left vibration damper: 993-333.051.00
- Part no. for right vibration damper: 993.333.052.00

- Compress coil spring using coil spring compressor tool.

Assembly





- Position end of coil spring on vibration damper stop (arrow).
- Press support clip (7) through bottom winding of spring, taking care that the two tabs are in the correct position.
- Push helper spring / bellows assembly onto piston rod.





- Push washer (arrow) onto piston rod up to stop.





- Position spring strut mount (mount / intermediate section / spring support assembly) on piston rod in such a way that the end of the coil spring touches the stop on the spring support (arrow).





- Position stop plate correctly (three recesses) on spring strut mount.
- Tighten fastening nut (use new part) onto piston rod until about 1 or 2 turns of the thread can still be seen above the nut.
- Position spring strut mount as follows (position spring strut mount correctly relative to shock absorber eye).
- The left and right spring strut mounts are identical. There are therefore two markings on the mounts, R (Right) and L (Left).
- Before positioning, check whether you are positioning a left or right shock absorber.
- The right mount is correctly positioned if the marking R (Right) is in line with the center of the stabilizer mount ball joint bolt.
- The left mount is correctly positioned if the marking L (Left) is in line with the center of the stabilizer mount ball joint bolt.
- To position the mount, turn it to the right. Turn the mounting bolt using a suitable lever.





CAUTION:
- Only turn it to the right (clockwise) and only turn the spring strut mount.
- Do not under any circumstances turn the spring support.

- After the spring strut mount has been positioned correctly and the coil spring is in contact with the stops, tighten the fastening nut.
- To tighten the fastening nut, hold a 7 mm open-end wrench against the piston rod.

- Tightening torque: 58 Nm (43 ft lb).

CAUTION: Do not under any circumstances use a power impact wrench to tighten the fastening nut.