Checking the level and topping up the power steering fluid Audi A6 C6 2004 - 2011

Parts and consumables:

• Cloth gloves
• rags
• Funnel (optional)
• Power Steering Fluid - G 004 000 M2

Notes:

The power steering of the Audi A6 C6 is part of the steering mechanism to make it easier to turn the steering wheel and set the trajectory.

The liquid level can be checked in a cold or heated state up to 50 ° C.​

The power steering fluid level should be  checked at every maintenance, as well as when a fluid leak is detected from the hydraulic drive of the booster, when steering efficiency is reduced or extraneous noise (howl) occurs when the steering wheel is turned. 
It is important to locate the leak as accurately as possible, as it is likely that a worn or damaged part will need to be replaced.

If you often top up the power steering fluid, then there are leaks somewhere, which should be repaired immediately after detection.

1 .  Install the car on a flat horizontal surface . Open the hood and lock it in the raised position. The power steering reservoir is located in the front of the engine compartment, to the left in the direction of travel of the vehicle. 

2.  The fluid level is checked by the marks on the dipstick mounted in the power steering reservoir cover itself. Therefore, first turn counterclockwise and unscrew the reservoir cap.

3. Use a clean rag to wipe any remaining fluid on the dipstick.

4. Screw on and then unscrew the power steering reservoir cap. The fluid level on the dipstick must be between the MIN (minimum) and MAX (maximum) marks. If the fluid level has dropped below the MIN mark, then it is necessary to top up the Audi A6 C6 power steering fluid.

Note:

When the engine is warmed up to normal temperature, the level of the working fluid should be near the MAX mark. When the engine is cold, the fluid level must not fall below the MIN mark. The permissible deviation of the liquid level on the dipstick from the MIN mark is 2 mm.

5. Add the required amount of fluid to the reservoir.

6.  Close the power steering reservoir cap tightly by turning it clockwise. Wipe up spilled liquid with a clean rag.

Notes:

The liquid level must be kept within acceptable limits and not pour too much into the tank. During engine operation, the Audi A6 C6 power steering fluid tends to expand. An increase in pressure can lead to problems and costly repairs.

Make sure you are using the correct power steering fluid for your vehicle, as each power steering fluid requires a different viscosity (density) to properly power the steering system.

The manufacturer does not recommend using gear oil instead of steering fluid. There is a wide variety of fluid types to choose from and choosing the wrong kind can result in steering failure and failure of steering seals.

Helpful advice:

In order for the Audi A6 C6 power steering system to function as long as possible, avoid prolonged fixation of the steering wheel in the extreme position when driving, do not park the car with the steering wheel turned all the way out. This causes a colossal load on her, especially in winter.

Method for checking the cleanliness of the power steering fluid

To check the purity of the power steering fluid, it is enough to pour a few drops of fluid from the power steering reservoir onto a clean, light, non-absorbent surface. The liquid must be clean, transparent, particles of suspension should not be visible in it, the color of the liquid must be unambiguous.

There are only three colors of power steering fluid: red, yellow and green. If the color of the liquid only slightly resembles one of the listed ones, this is an occasion to contact the service for inspection and, if necessary, replacement of the power steering fluid.

The article is missing:

• Photo of parts and consumables
• High-quality repair photos

Source: carpedia.club