This is the float and magnet assembly for the brake reservoir level switch. When the fluid level in the reservoir drops below the minimum level, the magnet acts to close the contact in the switch, which illuminates the brake fluid level warning light on the dashboard.
There are two switches and two floats in the reservoir, one for each brake system.
The brake fluid level switch is UR17894.
- Rolls-Royce Silver Shadow, Silver Shadow Two-Door, Silver Shadow II & Silver Wraith II
- Rolls-Royce Corniche (1970-1979, chassis 09770-35465) & Camargue (chassis 14674-33187)
- Bentley T1 & T2
- Bentley Corniche (chassis 20605-34473)