Recommended grade: Volvo Original Dot 4 class 6 or equivalent.
Note
Changing or filling brake fluid should be entrusted to an authorized Volvo workshop.
Brake fluid specifications
The medium in the hydraulic brake system is called brake fluid and is used to transfer braking force from e.g. pressure on the brake pedal via a master brake cylinder to one or more slave cylinders, which in turn act on a mechanical brake.