HarnessedLunacy

The owners manual says that the brake fluid should be changed every two years regardless of mileage.

My S4 just turned 2 years old, but I haven't hit the 25k mark yet (just over 21k). Was the brake fluid changed during the 5k or 15k service?

Do I need to take her in to have the brake fluid changed right away, just wait until 25k, or do you think they would go ahead and do the 25k service early so I can get both knocked out at once?

Any info is appreciated.

TXurS6

Brake fluid's enemy is moisture and time can allow moisture to infiltrate the system. If you do track days, heat can degrade it as well.

Nvr2Fst

2nd, will start to eat away the rubber components that the brake fluid comes in contact with

donp

The fluid change is time based, not mileage. It absorbs water over time and degrades.

Efrino

Audi will pay for one brake fluid change 24 months from in-service date.

HarnessedLunacy

Thanks for the info. I am scheduled next saturday for the 25k service and a brake fluid change. . .