Signs Your VW Brake Fluid Needs a Flush (And Why 2-Year Intervals Matter)
Key Takeaways Brake fluid absorbs moisture over time even in a sealed system. This process, called hygroscopic absorption, happens gradually regardless of how the vehicle is driven. A spongy or soft brake pedal is one of the clearest warning signs. Moisture in the fluid lowers its boiling point, which affects pedal feel under hard braking….