Variable Engine Speed Advance Warning Field

The scale of the tachometer contains a fixed (painted) engine speed advance warning field (dashed red) with subsequent engine speed warning field (continuous red).

In addition, similar to the M5, the display area contains a variable engine speed advance warning field below the engine speed scale.

Fig 1: Identifying Tachometer

Courtesy of BMW OF NORTH AMERICA, INC.

Here, depending on the engine temperature, a maximum engine speed recommendation is displayed to the driver. When the engine is at operating temperature this display disappears.