DIY Audi A6 C6 Power Steering Fluid Change Guide

Easy DIY Audi A6 C6 Power Steering Fluid Change

Performing a power steering fluid change on your Audi A6 C6 is an important DIY maintenance task that helps extend the life of the steering system and ensures smooth handling. This step-by-step guide walks you through everything you need to know to do it yourself.

🔧 Tools & Materials for Audi A6 C6 Power Steering Fluid Change:

2L FEBI BILSTEIN 06161 synthetic power steering fluid (used ~1.5L)
T25 Torx screwdriver
Pliers for hose clamps
2L empty bottle for old fluid, and a jar for draining
Funnel
Paper towels or rags
(Optional) Brake cleaner (for reservoir cleaning)
(Optional) Safety gloves and glasses

🛠️ How to Replace Power Steering Fluid – Audi A6 C6:

Open the reservoir and use a syringe or turkey baster to remove as much old fluid as possible.
Remove the reservoir using the T25 Torx.
Detach the return hose (small diameter) with pliers; fluid will begin draining.
Place the return hose in a bottle to collect old power steering fluid
(Optional) Disconnect the larger hose and clean the reservoir with brake cleaner if necessary.
Reconnect the large hose and add new power steering fluid using a funnel.
With the engine off, turn the steering wheel fully left and right several times to flush air and fluid.
Continue adding fluid and turning the wheel until clean fluid flows from the return line.
Use the reservoir's dipstick scale to measure the level (cold/hot). Adjust as needed.
Close the reservoir securely.
Start the engine and verify proper power steering operation — it should be smooth and light.
Do a final check for fluid level and leaks.

✅ Why Change Audi A6 C6 Power Steering Fluid?

Over time, power steering fluid can become contaminated and lose its hydraulic properties. A regular fluid change helps maintain optimal performance and prevents premature wear of your Audi A6 C6’s steering components.