Off-road driving systems
4MATIC (permanent four-wheel drive)
4MATIC ensures that all four wheels are
permanently driven. Together with ESP® and
4ETS, it improves the traction of your vehicle
whenever a drive wheel spins d ...
Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
■ To switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or ...
DEF (BlueTEC vehicles only)
Important notes on use
To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent DEF.
When the supply of DEF is almost used up,
the Check Additive See Op ...