Front Gas-Filled Shock Absorbers, Venting And Draining
WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Hand drill
- 3 mm diameter drill bit.
- 6 mm diameter drill bit
- Oil collecting container
- Protective eyewear
Procedure
-- Secure the gas-filled shock absorber vertically in a vise with the piston rod facing down.
WARNING:
Risk of eye injury.
- Wear protective eyewear!
-- Drill a 3 mm hole -A- through the shock absorber outer tube.
NOTE:
Gas escapes when drilling.
-- Continue drilling until the tube inside is drilled through (approximately 25 mm deep).
-- Drill a second hole 6 mm -B- through the outer and inner shock absorber tubes.
-- Hold the shock absorber over an appropriate container for catching oil and move the piston rod repeatedly through the entire stroke until no more oil flows out.