kilometers to miles MERCEDES-BENZ S550 4MATIC 2008 W221 Owner's Manual

268 Control systems
Instrument cluster control system
Trip menu
In the “Trip” menu, you can show an addi-
tional display for the speedometer and call
up or reset your vehicle’s statistical data.
Standard display
In the standard display, the trip odometer
and main odometer are shown in the mul-
tifunction display.
Press ( or & to select the “Trip”
menu.
1Main odometer
2Trip odometerFuel consumption statistics since start
Press ( or & to select the “Trip”
menu.
Press % to select “After start”.
1Distance driven since start
2Time elapsed since start
3Average speed since start
4Average fuel consumption since startFuel consumption statistics since last
reset
Press ( or & to select the “Trip”
menu.
Press % or $ to select “After re-
set”.
1Distance driven since last reset
2Time elapsed since last reset
3Average fuel consumption since last re-
set
4Average speed since last reset
iThe menu overview can be found on
(
page 266).
iAll values that are based on the last start are
reset when you turn off the vehicle’s engine for
more than four hours (
page 397).
iIf you turn the SmartKey to position1 or2
again during this time, the values will not be re-
set. After 999 hours or 9 999 miles (kilometers),
the fuel consumption statistics since start are
automatically reset.iAfter 9999 hours or 99 999 miles (kilome-
ters), the fuel consumption statistics since last
reset are automatically reset.

282 Control systems
Instrument cluster control system
With “Daytime driving lamps” mode select-
ed and the exterior lamp switch at position
M or *, the low beam headlamps
are switched on when the engine is run-
ning.
In low ambient light conditions the follow-
ing lamps will switch on additionally:

Parking lamps

Tail lamps

License plate lamps

Side marker lamps
For more information on the daytime run-
ning lamp mode (
page 373).Showing or hiding additional
speedometer
You can have an additional digital speed-
ometer shown on the multifunction dis-
play. The speed is shown in the unit of
kilometers/hour (USA) or miles/hour
(Canada).
Press ( or & to select the “Set-
tings” menu.
Press % or $ to select the “Add.
speedometer” function.
Press #.
Press # again if you would like to
change the current status.
Depending on the previous status, the
additional speedometer will be
switched on or off.Switching radar sensors* on/off
If your vehicle is equipped with DISTRONIC
Plus*, BAS Plus*, or Park Assist* it is
equipped with a radar sensor system
which you can switch on and off.
When travelling in Canada in a vehicle not
registered in Canada, you must switch off
the radar sensor system. Canadian law
does not permit the use of the radar sensor
system for vehicles from outside of Cana-
da. When you switch off the radar sensor
system, the following functions are deacti-
vated:
BAS Plus* (page 69)

DISTRONIC Plus* (page 424)

Park Assist* (page 448)

PRE-SAFE® Brake* (page 76)
iIf you turn the exterior lamp switch to anoth-
er position, the corresponding lamp(s) will
switch on.
iMake sure that the light switch is set
toB or * when you switch off the day-
time running lamps while driving at night.

622 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Next Service X
due in ... days
due in ... mls (km)Service X must be carried out in ... days or
after ... miles (kilometers) (
page 582).
Have the maintenance service carried out by an authorized
Mercedes-Benz Center.
Only shift to
position 'P' when
vehicle is stationaryYou have tried to shift the automatic trans-
mission to P using the gear selector lever al-
though the vehicle is still in motion.Stop your vehicle as soon as it is safe to do so.
Shift the automatic transmission to park positionP.
Engage the electronic parking brake (page 395).
Park Assist
currently unavailable
See Oper. ManualPark Assist* is deactivated because the
area around the sensors* in the front or the
rear bumper (
page 590) is dirty.
Clean the front and rear bumper (page 590).
Park Assist* is deactivated because the
battery voltage is insufficient.Have the battery checked by an authorized Mercedes-Benz
Center.
Park Assist* is switched off because the ra-
dar sensor system* is temporarily inopera-
tive due to electromagnetic interference
near television and radio transmitter sta-
tions, toll stations, speed measuring sys-
tems, etc.Wait until the message in the multifunction display disappears.
Park Assist
inoperativePark Assist* is unavailable due to a mal-
function.Contact an authorized Mercedes-Benz Center as soon as pos-
sible.