Mercedes-Benz M-Class Owners Manual
See also:
Purity
Assuring the purity of DEF is particularly
important with respect to avoiding
malfunctions in the exhaust gas
aftertreatment system.
If DEF is pumped out of the DEF tank, e.g. during repair wor ...
Problems with the seat ventilation
The seat ventilation has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
Switch o ...
Tachometer
The red band in the tachometer indicates the
engine's overrevving range.
Do not drive in the overrevving
range, as
this could damage the engine.
The fuel supply is interrupted to protect the ...
