Prescribed grade: Volvo Original Dot 4 class 6 or equivalent.
Note
It is recommended that brake fluid is changed or filled by an authorised Volvo workshop.
Brake fluid — specifications
The medium in a hydraulic brake system is called brake fluid, and it is used to transfer pressure from e.g. a brake pedal via a master brake cylinder to one or more slave cylinders, which in turn act on a mechanical brake.