stop start MERCEDES-BENZ SL-Class 2016 R231 Repair Manual

Display messagesPossible causes/consequences andMSolutions
Becausethere is interferenc efrom astron gsource of radi owaves,
th eke yis no tdetecte dwhils tth eengin eis running .
A warnin gtone also sounds.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 171).
XInsertth eSmartKey into th eignition loc kand bring into ke y
mode.
Â
Key Not Detected
(whit edisplay mes -
sage )
The SmartKey is currentl yundetected.
XChange th elocation of th eSmartKey in th evehicle.
If th eSmartKey still canno tbe detected:
XInser tth eSmartKey into th eignition loc kand tur nit to th e
desire dposition .
Â
Remove'Start'But‐
ton and Insert Key
The SmartKey is continually undetected.
KEYLESS-GO is temporarily malfunctionin gor is defective. Awarn -
in g tone also sounds.
XInser tth eSmartKey into th eignition loc kand tur nit to th e
desire dposition .
XVisitaqualified specialist workshop .
Warning and indicator lamps
General notes
Some systems carry outaself-diagnosi swhen th eignition is switched on .Therefore ,som e
indicato rand warnin glamp smay ligh tup or flas htemporarily. This behavio ris non-critical.
These indicato rand warnin glamp sonly indicate amalfunction if they ligh tup or flas hafter
startin gth eengin eor whils tdriving.
270Warning and indicator lamps
On-board computer and displays

Safety systems
ProblemPossible causes/consequences andMSolutions
$(USA only)
J (Canada only)
The red brake system
warning lamp comes on
while the engine is run-
ning. A warning tone
also sounds.There is not enough brake fluid in the brake fluid reservoir.
GWARNING
The braking effect may be impaired.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
XSecure the vehicle against rolling away (Ypage 171).
XDo not add brake fluid. Adding more will not remedy the mal-
function.
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction
display.
!
The yellow ABS warning
lamp is lit while the
engine is running.ABS (Anti-lock Braking System) is deactivated due to a malfunc-
tion. BAS (Brake Assist), BAS PLUS, ESP®(Electronic Stability
Program), PRE‑ SAFE®, PRE‑SAFE®Brake, the HOLD function and
hill start assist are therefore also deactivated, for example.
ATTENTION ASSIST is deactivated.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XVisit a qualified specialist workshop.
If the ABS control unit is faulty, there is also a possibility that other
systems, such as the navigation system or the automatic trans-
mission, will not be available.
272Warning and indicator lamps
On-board computer and displays

Engine
ProblemPossible causes/consequences andMSolutions
;
The yellow Check
Engine warning lamp
lights up while the
engine is running.There may be a malfunction, for example:
Rin the engine management
Rin the fuel injection system
Rin the exhaust system
Rin the ignition system
Rin the fuel system
The emission limit values may be exceeded and the engine may be
in emergency mode.
XHave the vehicle checked as soon as possible at a qualified
specialist workshop.
iIn some states, you must immediately visit a qualified special-
ist workshop as soon as the yellow Check Engine warning lamp
lights up. This is due to the legal requirements in effect in these
states. If in doubt, check whether such legal regulations apply in the state in which you are currently driving.
8
The yellow reserve fuel
warning lamp lights up
while the engine is run-
ning.The fuel level has dropped into the reserve range.
XRefuel at the nearest gas station.
8
The yellow reserve fuel
warning lamp flashes
while the vehicle is in
motion.
In addition, the ;
Check Engine warning
lamp may light up.The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
XCheck that the fuel filler cap is correctly closed.
XIf the fuel filler cap is not correctly closed: close the fuel filler
cap.
XIf the fuel filler cap is closed: visit a qualified specialist work-
shop.
?
The red coolant warn-
ing lamp lights up while
the engine is running
and the coolant tem-
perature gage is at the
start of the scale.The temperature sensor for the coolant temperature gage is defec-
tive.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. Do not continue
driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 171).
XConsult a qualified specialist workshop.
278Warning and indicator lamps
On-board computer and displays

ProblemPossible causes/consequences andMSolutions
?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may
be blocked or the electric engine radiator fan may be malfunc-
tioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
XObserve the additional display messages in the multifunction
display.
XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 171).
XLeave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
XCheck the coolant level and add coolant, observing the warning
notes (
Ypage 539).
XIf you have to add coolant frequently, have the engine cooling
system checked.
XMake sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
XDo not start the engine again until the coolant temperature is
below 248‡(120 †). Otherwise, the engine could be damaged.
XDrive to the nearest qualified specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic.
?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning. A warning tone
also sounds.The coolant temperature has exceeded 248 ‡ (120 †). The air-
flow to the engine radiator may be blocked or the coolant level may
be too low.
GWARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
XObserve the additional display messages in the multifunction
display.
XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 171).
Warning and indicator lamps279
On-board computer and displays
Z

Details on the displays:
Rfor all vehicles except AMG vehicles (see
the separate vehicle Operator's Manual)
Rfor AMG vehicles, see the separate vehicleOperator's Manual.
Exiting the display
XSlide XVY the COMAND controller until
the desired display (clock or fuel consump-
tion) is shown.
Seat functions
Overview
Using the Tbutton next to the COMAND
controller or the Seat menu item in the sys-
tem menu, you can call up different setting
functions. The following settings depend on
the type of seat and the vehicle model series:
RSeat cushion length
RBackrest side bolsters
RLumbar
RBalance
RSeat cushion side bolsters
RDynamics
RMassage
iYou can also store and recall the current
seat function settings using the memory
button and the corresponding memory
position switch; see the separate vehicle
Operator's Manual.
The massage function cannot be started or
stopped using the memory button.
Selecting the seat
First select the seat which you wish to adjust.
This function is not available for all vehicles.
XPress the TorW button.
XSelect Seatand press Wto confirm.
XTo switch to the lower line, for both options
slide VÆthe COMAND controller.
XSelect Driver's SeatorPassenger
Seatby turning cVdthe COMAND con-
troller and press Wto confirm.
Adjustment functions
Adjusting the seat cushion length
The availability of this function depends on
the type of seat and the vehicle model series.
This function allows you to adjust the height
of the seat cushion.
XSelect the seat (Ypage 316).
XSelect Seat Surfaceby turning cVdthe
COMAND Controller and press Wto con-
firm.
A scale appears.
316Vehicle functions
COMAND

XIrrespective of the option, pressWto con-
firm your selection.
The address entry menu appears again. The
intersection selected has been entered.
XStart route calculation (Ypage 329).
Starting route calculation
Address entry menu with destination address
:
Destination address
;Starts route calculation
You can have COMAND calculate a route to
the destination address, or you can save the
destination address (for example, as your
home address (My address)) (
Ypage 329).
XCall up the address entry menu
(
Ypage 324).
XIn the address entry menu, confirm Start
by pressingW.
If no other route has been calculated, route
calculation starts immediately (option 1). If
another route has already been calculated
(route guidance is active), a prompt
appears (option 2).
iThe Continuemenu item is displayed
instead of Start
ifCalculate Alterna‐
tiveRoutesis activated in the navigation
menu (option 2) (
Ypage 351).
Option 1 – no route guidance active: route
calculation starts. While route calculation is in progress, an arrow will indicate the direction
to your destination. Below this, you will see a
message, e.g. Calculating Fast
Route....
Once the route has been calculated, route
guidance begins. If the vehicle is not on a digitized road, the
following is displayed:
Rthe linear distance to the destination
Rthe direction to the destination
Rthe
Off Mapped Roadmessage
Option 2 – route guidance is already
active: if route guidance is already active, a
prompt will appear asking whether you wish
to terminate the currently active route guid-
ance.
XSelect YesorNoand press Wto confirm.
If you select Yes
, COMAND will stop route
guidance and start route calculation for the
new destination.
If you select No
, COMAND will continue
with the active route guidance.
iRoute calculation takes a certain amount
of time. The time depends on the distance
from the destination, for example.
COMAND calculates the route using the
digital map data.
The calculated route can differ from the
ideal route, for example because of incom-
plete map data. Please also refer to the
notes about the digital map (
Ypage 377).
Entering and saving your home address
You can either enter your home address for
the first time (option 1) or edit a previously
stored home address (option 2).
XOption 1: enter the address, e.g. a city,
street and house number (
Ypage 325).
XAfter entering the address in the address
entry menu, select Save
by turningcVd
and ZVÆ sliding the COMAND controller
and press Wto confirm.
XSelect Save as "My Address"and press
W to confirm.
COMAND stores your home address as My
Addressin the destination memory.
XOption 2:proceed as described under
"Option 1".
A prompt appears asking whether the cur-
rent home address should be overwritten.
Navigation329
COMAND
Z

XCallup the maps.google.com website and
enter the destination address inthe
addr ess entry field.
XClick the corresponding button to send the
destination address to the e-mail address
registered with mbrace.
XEnter the e-mail address you specified
when setting up your mbrace account into
the corresponding field in the "Send" dialog
window.
XClick "Se nd".
Calling up destination addresses
XPress the ïmbrace information button.
Downloading of the destination address to
the navigation system of your vehicle
begins.
iIf you have sent more than one destina-
tion addr ess to your vehicle's navigation
system, you willneed to call up the infor-
mation ind ividually for every address to be
down loaded.
XSelect Yeswhen the prompt for starting the
navigation system is shown. The window for starting the navigation system appears
(
Ypage 329).
XSe
lect Start.
or
XSe lect Noto store the downloaded desti-
nation inthe destination memory for later
use.
iThe destination addresses are downloa-
ded inthe same order as they are sent.
If you own several Mercedes-Benz vehicles
equipp ed with mbrace and a valid sub-
scriber account: each destination address
can bedownloaded byeach vehicle. This
requires each vehicle to beregistered with
an e-mail address inyour mbrace account.
Route guidance
Important notes
COMAND calculates the route to the destina-
tion without taking account of the following,
for example:
Rtraff iclights
Rstop and yield signs
Rmerging lanes
Rparking or stopping ina no parking /no
stopping zone
Rother road and traff icrules and regulations
Rnarrow bridges
COMAND may give differing navigation com-
man ds if the actual street/traff icsituation
does not correspond with the digital map's
data. For example, ifthe road layout or the
direction of a one-way street has been
changed.
For th isreason, you must always observe
road and traff icrules and regulations during
your journey. Road and traff icrules and reg-
ulations always have priority over the sys-
tem's driving recommendations.
Route guidance begins once a route has been
calculated (
Ypage 329).
COMAND guides you to your destination by
means of navigation announcements inthe
346Navigation
COMAND

XTo close the destination information:
slideXVY the COMAND controller or press
the k back button.
iYou can display destination information
for the destination, for both way points and
for the intermediate stop, if they are part of
the route.
If a mobile phone is connected to COMAND
and a phone number is included in the des-
tination information, you can call it
(
Ypage 383).
Route overview
You can use the route overview to move along
the active route section by section and view
information and details about each section of
the route.
You can see information relevant to the sec-
tion of the route, such as the length of the
road section you will be driving along and the
road name. The highlighted route section is
marked in white with a red border on the map.
XTo switch to navigation mode: press the
Ø button.
XTo show the menu: pressWthe COMAND
controller.
XSelect Routein the navigation system
menu bar by turning cVdthe COMAND
controller and press Wto confirm.
XSelect Route Browserand press Wto
confirm.
XTo view the next or previous route sec-
tion: select Next
orPreviousand press W
to confirm.
iIf the first or last route section is high-
lighted, you cannot select Previous
or
Next
.
XTo zoom in or out of the map: selectNor
M and press Wto confirm.
XTo close the route overview: selectBack
and press Wto confirm. Route demonstration
You can see the route before starting your
journey. This function is only available when
the vehicle is stationary.
XTo switch to navigation mode:
press the
Ø button.
XTo show the menu: pressWthe COMAND
controller.
XSelect Routein the navigation system
menu bar by turning cVdthe COMAND
controller and press Wto confirm.
XSelect Route Demonstrationand press
W to confirm.
The map with the crosshair appears.
XTo get to the destination: pressWto
confirm the highlighted symbol.
XTo stop the route demonstration: con-
firm the Ësymbol by pressing W.
Navigation353
COMAND
Z

Example: route display stopped
:
Road name and city display when route
display has been stopped
;Distance of the crosshair from current
vehicle position
XTo get to the current vehicle position:
pressWto confirm the symbol for the cur-
rent vehicle position.
XTo change the map scale: selectScale
and press Wto confirm.
The scale bar appears.
XTurn cVd the COMAND controller and
press Wto confirm.
Recording the route
Notes
If you have activated COMAND and the SD
memory card has been inserted, you should
not take it out of the slot.
You can store up to 100 routes.
When you record a route, COMAND uses so-
called support points and displays the route
as a series of lines. If the route is then calcu-
lated, COMAND attempts to align the recor-
ded route with the digital map.
The support points of the route may not be on
a digitized road.
This is often the case for routes that have
been calculated using map data from other
sources. Calling up the Routes menu
XInsert the SD memory card (Ypage 447).
XTo switch to navigation mode:
press the
Ø button.
XTo show the menu: pressWthe COMAND
controller.
XSelect Destinationin the navigation sys-
tem menu bar by turning cVdthe
COMAND controller and press Wto con-
firm.
XSelect Routes.
Starting/ending recording
XCall up the Routes menu (Ypage 354).
XTo start recording : selectStart
Recordingin the Routes menu by turning
cVd the COMAND controller and press W
to confirm.
During the recording, the recorded route is shown behind the current vehicle position
with gray strokes (symbol for tire tracks).
XTo end recording: selectStopRecording
in the Routes menu by turning cVdthe
354Navigation
COMAND

Problems with the navigation system
ProblemPossible causes/consequences andMSolutions
COMAND is unable to
continue route guid-
ance after the journey
has been interrupted.Route guidance is canceled if you interrupt the journey for more
than two hours.
"Interrupting the journey" refers to stopping the vehicle.
"Continuing route guidance" refers to switching COMAND back on
and driving on.
XContinue route guidance (Ypage 351).
ProblemPossible causes/consequences andMSolutions
COMAND is unable to
determine the vehicle's
position.COMAND has to redetermine the position of the vehicle if the
vehicle has been transported.
Example:
RAfter transporting the vehicle by ferry
RAfter transporting the vehicle by motorail
RAfter the vehicle has been towed
XStart the vehicle and pull away.
COMAND determines the vehicle's position. Depending on the
driving situation, this may take some time.
Route guidance may be restricted during the determination of
the vehicle's position.
When positioning is complete, route guidance is resumed with
navigation announcements and route guidance displays.
Navigation379
COMAND
Z