What maintenance is required for the Audi A4's quattro all-wheel drive system?

I just bought an Audi A4 with quattro all-wheel drive, and I want to make sure I take care of it properly. What type of maintenance should be done to ensure the longevity and performance of this system?

As a longtime Audi owner, I recommend checking the quattro system's fluid levels at every oil change. It's a simple task that can prevent costly repairs down the road.

I have an Audi A4 with quattro, and I've found that periodically spraying the joints and bushings with silicone lubricant helps keep everything running smoothly.

One thing I've learned is to always rotate my tires on a regular basis when I have a quattro system. This helps evenly distribute the wear and tear on all four tires.