The selected unit of measurement for
distance applies to:
R the analog speedometer
R the digital speedometer in the Trip menu
R the odometer and the trip odometer
R the trip computer
R the navigation instruction in the Navi menu
R DISTRONIC PLUS
R ASSYST PLUS service interval display
The digital speedometer shows alternative
speed units ( Y page 377).XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress 9 or : to select Units.XPress the a button to confirm.XPress the a button to save the setting.
The unit switches km/h and mph.
Switching the belt adjustment on/off
Further information on belt adjustment:
( Y page 58).
XPress = or ; on the steering wheel
to select the Settings menu.XPress the 9 or : button to select
Belt Adjustment .XPress the a button to confirm.XTo activate/deactivate: press a
again.
Activating/deactivating the acoustic
locking confirmation
If you activate the Acoustic Lock Feedb.
function, an audible signal sounds when the
vehicle is locked or unlocked. When
unlocking, the signal sounds once. When
locking, it sounds three times.
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress 9 or : to select Acoustic
Lock Feedb. .XPress the a button to confirm.XTo activate/deactivate: press a
again.
Activating/deactivating the radar
sensor system
The following systems are switched off when
the radar sensor system is deactivated:
R DISTRONIC PLUS ( Y page 325)
R BAS PLUS ( Y page 68)
R PRE-SAFE ®
Brake ( Y page 71)
R Blind Spot Assist ( Y page 352)
R Active Blind Spot Assist ( Y page 356)
i USA only: This device has been approved
by the FCC as a “Vehicular Radar System”.
The radar sensor is intended for use in an
automotive radar system only. Removal,
tampering, or altering of the device will void
any warranties, and is not permitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
i Canada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference,
and
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
378Menus and submenusOn-board computer and displays
Display messagesPossible causes/consequences and M Solutionsb
Active Headlamps
InoperativeThe active light function is faulty.XVisit a qualified specialist workshop.b
Malfunction See
Oper. ManualThe exterior lighting is faulty.XVisit a qualified specialist workshop.b
AUTO Lamp Function
InoperativeThe light sensor is faulty.XVisit a qualified specialist workshop.
USA only:
XSwitch off the daytime running lamps in the on-board computer
( Y page 377).XSwitch the lights on and off using the light switch.b
Please Switch Off
LightsThe lights are still switched on when you leave the vehicle. A
warning tone also sounds.XTurn the light switch to $ or c .
or
XIf the rear fog lamp is switched on: press the light switch in to
the stop.Adaptive High-beam
Assist
InoperativeAdaptive Highbeam Assist is faulty.XVisit a qualified specialist workshop.
Engine
Display messagesPossible causes/consequences and M Solutions+
Check Coolant
Level See Oper.
ManualThe coolant level is too low.XAdd coolant, observing the warning notes when doing so
( Y page 450).XIf coolant needs adding more often than usual, have the engine
coolant system checked at a qualified specialist workshop.GWarning
Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn
if it comes into contact with hot engine parts. You could be seriously burned.
Display messages397On-board computer and displaysZ
