Rear Gas-Filled Shock Absorbers, Venting And Draining

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.

-- Drill a 3 mm hole -A- through the shock absorber outer tube.

Fig 1: Audi Magnetic Ride Rear Shock Absorber

Courtesy of AUDI OF AMERICA, LLC

-- 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.