Audi Workshop Service and Repair Manuals

A - Drilling open

• ‒ → Clamp gas-filled shock absorber vertically in vice with piston rod facing downwards.

• ‒ Drill ø 3 mm hole -arrow A- through outer tube of shock absorber.

Note:

Gas escapes whilst doing so.

• ‒ Keep drilling until inner tube is penetrated (approx. 25 mm deep).
• ‒ Drill second ø 6 mm hole -arrow B- through outer and inner tube of shock absorber.
• ‒ Hold damper over a drip tray and execute full piston rod stroke several times until no further oil emerges.

B - Opening with pipe cutter

• ‒ → Drill ø 3 mm hole -arrow- through outer tube of shock absorber/saw through tube wall.

Note:

Gas escapes whilst drilling/sawing.

• ‒ Apply pipe cutter (e.g. Stahlwille Express 150/3) as shown and cut through outer tube.
• ‒ Pull up piston rod; in doing so, hold inner tube with pliers and press tube downwards such that it remains in outer tube on slowly pulling up piston rod.
• ‒ Pull piston rod off inner tube.
• ‒ Drain shock absorber tube.