2018 MERCEDES-BENZ SL CLASS engine

Important safety notes
G WARNIN G
If you operate information systems and com-
munication equipmen ti ntegrate dint he vehi-
cle when driving ,y ou may be distracte df ro m
th et ra ffic situation .Y ou could also lose con-
trol of th ev ehicle. Ther eisar is kofana cci-
dent.
Only operate this equipmen tw hen th et ra ffic
situation permits. If you are no ts ur et ha tt hi s
is possible ,p ark th ev ehicl ep ayin ga ttention
to traffic condition sa nd operate th ee quip-
men tw hen th ev ehicl eiss ta tionary.
You must observ et he legal requirements for th e
country in whic hy ou are currentl yd riving when
operating th eo n-bo ard computer.
G WARNIN G
If th ei nstrumen tc luste rh as faile dorm al-
functioned, you may no tr ecognize function
restriction sins ystems relevan ttos afety. The
operating safet yofy our vehicl em ay be
impaired .T her eisar is kofana ccident.
Drive on carefully. Hav et he vehicl ec hecked
at aq ualified specialist workshop immedi-
ately.
The on-board computer only shows message so r
warning sf ro mc ertai ns ystems in th em ultifunc-
tion display. You should therefor em ak es ur e
your vehicl eiso perating safely at all times .
If th eo perating safet yofy our vehicl ei s
impaired ,p ull ove rass oo nasitiss af etodos o.
Contac taq ualified specialist workshop.
Fo rano verview, see th ei nstrumen tp anel illus-
tration ( Y
page 32).
Display sa nd operation
Instrumen tc luster lighting
The lighting in th ei nstrumen tc luster, in th ed is-
plays and th ec ontrols in th ev ehicl ei nterior can
be adjusted usin gt he brightness control knob.
The brightness control knob is locate dont he
botto ml ef toft he instrumen tc luste r
( Y
page 32). X
Turn th eb rightness control knob clockwise or
counter-clockwise.
If you tur nt he ligh ts witch ( Y
page 95 )t ot he
X , ` or X position ,t he brightness
will depend upon th eb rightness of th ea mbi -
en tl ight.
The ligh ts ensor in th ei nstrumen tc luste r
automatically control st he brightness of th e
multifunction display. In daylight, th ed isplays
in th ei nstrumen tc luste ra re no ti lluminated.
Speedometer with segments The segments in th es peedometer indicat e
whic hs pee dr ange is available. R
Cruis ec ontro la ctivated ( Y
page 138):
The segments ligh tupf ro mt he store ds pee d
to th em aximum speed. R
Distanc eP ilot DISTRONI Cisa ctivated
( Y
page 140):
On eort wo segments in th es et spee dr ange
ligh tu p. R
Distanc eP ilot DISTRONI Cd etects av ehicl ei n
fron tm oving mor es lowly than th es to re d
speed:
The segments between th es pee doft he vehi-
cle in fron ta nd th es to re ds pee dl igh tu p.
Tachometer
! Do no td riv eint he overrevving range, as this
could damag et he engine.
The red ban dint he tachometer indicates th e
engine's overrevving range.
The fuel suppl yisi nterrupted to protect th e
engin ew hen th er ed ban disr eached.
Outsid et emperatur ed isplayYou should pay special attention to road condi-
tion sw hen temperatures are aroun df re ezing
point.
Bea rinm in dt ha tt he outside temperature dis-
play indicates th et em perature measured and
does no tr ecord th er oad temperature.
The outside temperature display is in th em ulti-
function display ( Y
page 165).
Ac ha ng eint he outside temperature is shown in
th em ultifunction display after ad elay.Display sa nd operation 163
On-boar dc omputer and displays Z

Coolan tt emperatur eg auge
G WARNING
Opening th eh ood when th ee ng in eiso ver-
heated or when there is af ir eint he engine
compartmen tc oul de xp ose you to hot gases
or other servic ep roducts. Ther eisar is ko f
injury.
Let an overheate de ng in ec oo ld own before
opening th eh ood .Ift he re is af ir eint he
engin ec ompartment, keep th eh ood closed
and contac tt he fir ed epartment.
! Ad isplay message is shown if th ec oolant
temperatur eist oo high.
If th ec oolant temperatur eiso ve r2 48 ‡
(12 0† ), do no tc ontinue driving .T he engine
will otherwise be damaged.
The coolant temperatur eg age is in th ei nstru-
men tc luste ront he right-han ds ide ( Y
page 32).
The H markin gint he coolant temperatur eg auge
corresponds to ac oolant temperatur eo f
approximately 24 8‡ (12 0† ).
Under normal operatin gc ondition sa nd at the
correc tc oolant level, th ec oolant temperature
gauge may ris etot he H marking. Operatin gt he on-boar dc omputer
Overview
C
Multifunction display D
Right control panel

C
LapD
RACE TIMER
You can start the RACE TIMER when the engine
is running or if the SmartKey is in position H in
the ignition lock. X
Press the Y or e button on the steering
whee ltos elect the AMG menu.X
Press the c button repeatedly until the
RACE TIMER appears. X
To start: press the v button to start the
RACE TIMER.
Displaying the intermediate time X
Press the Y or e button to select
Interm. Time .X
Press v to confirm.
The intermediate time appears for five sec-
onds.
Starting an ew lap
C
RACE TIMER
D
Fastest lap time (best lap)

Engine Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions
Tir e Press. Monito r
Currently Unavaila‐
ble Becaus et he re is interferenc ef ro mas tr on gs ource of radi ow aves, no
signals from th et ir ep ressur es ensor sa re detected. The tire pressur e
monitor is temporarily malfunctioning .X
Drive on .
The tire pressur em onitor restarts automatically as soo nast he
problem has been resolved.
TirePress .S en ‐
sor(s) Missin g There is no signal from th et ir ep ressur es ensor of on eors everal
wheels. The pressur eoft he affecte dt ir ed oes no ta ppear in th em ul-
tifunction display. X
Hav et he fault yt ir ep ressur es ensor replace dataq ualified special -
ist workshop .
Tir eP ressure Moni‐
tor Inoperative No
Wheel Sensor s The wheels mounte ddon ot hav eas uitable tire pressur es ensor .T he
tire pressur em onitor is deactivated.X
Moun tw heels wit hs uitable tire pressur es ensors.
The tire pressur em onitor is activated automatically after drivin gf or
af ew minutes.
Tir e Press. Monito r
Inoperative The tire pressur em onitor is faulty.X
Visit aq ualified specialist workshop .
Vehicle Display messages
Possible causes/consequences and P Solutions
Shift to 'P' or 'N'
to Start Engine You hav ea ttempte dtos ta rt th ee ng in ew it ht he transmission in posi-
tion ^ or [ .X
Shift th et ra nsmission to position ] or \\ .
Apply Brake to
Shift fro m' P' You hav ea ttempte dtos hift th et ra nsmission to position [ , ^ or \\
without depressing th eb rak ep edal .X
Depress th eb rak ep edal .
To Shift out of P
or N, Depres s Brake
and Switch on Engine You hav ea ttempte dtos hift th et ra nsmission out of position ] or \\
int oa nother transmission position wit ht he engin es witched off .X
Depress th eb rak ep edal .X
Start th ee ng ine.
Driver's Doo rO pe n
&T ransmission Not
in PR is kofV ehi‐
cle Rollin gA wa y The driver's door is no tf ully closed and th et ra nsmission is in position
^ , \\ or [ .
Aw arning tone also sounds.
G WARNIN G
The vehicl em ay rol la way.
There is ar is kofana ccident.X
Whe np arking th ev ehicle, shift th et ra nsmission to position ] .198
Display messages
On-boar dc omputer an dd isplays

Display messages
Possible causes/consequences and P Solutions
Onl yS elect Par k
(P) Whe n Vehicl e is
Stationar y The vehicl eism oving .X
Pull ove ra nd stop th ev ehicl es afely as soo nasp ossible, payin g
attention to roa da nd traffic conditions.X
Shift th et ra nsmission to position ] .
Apply Brake to
Select R You hav ea ttempte dtos hift from position [ to position ^ .X
Depress th eb rak ep edal .X
Shift th et ra nsmission to position ^ .
Servic e Required Do
Not Shift Gears
Visit Dealer You canno tc ha ng et he transmission position due to am alfunction .
Aw arning tone also sounds.
If transmission position [ is selected:X
Drive to aq ualified specialist workshop without shifting th et ra ns -
mission from position [ .
If position ^ , \\ or ] is selected:X
Notify aq ualified specialist workshop or breakdown service.
Reversing Not Possi‐
ble Servic e Required You can no longer shift to transmission position ^ due to am alfunc -
tion .
Transmission position s ] , \\ or [ continu etobea vailable.
Aw arning tone also sounds. X
Visit aq ualified specialist workshop .
Transmission Mal ‐
function Sto p Am alfunction has occurred in th em echanical transmission compo -
nents.
Aw arning tone also sounds. The transmission shift sa utomatically to
position \\ . X
Pull ove ra nd stop th ev ehicl es afely as soo nasp ossible, payin g
attention to roa da nd traffic conditions.X
Shift th et ra nsmission to position ] .X
Secur et he vehicl ea gainst rollin ga way ( Y
page 131).X
Notify aq ualified specialist workshop or breakdown service.
Sto pV ehicl eL eave
Engine Runnin g Wai t
Transmission Cool‐
ing The transmission has overheated. Pullin ga way can be temporarily
impaire dorn ot possible.X
Pull ove ra nd stop th ev ehicl es afely as soo nasp ossible, payin g
attention to roa da nd traffic conditions. Do no tc ontinue drivin g
under any circumstances. X
Wait until th ed isplay message disappear sb efore pullin ga way.
Auxiliary Batter y
Malfunction The auxiliary battery for th ea utomatic transmission is no longer bein g
charged. X
Visit aq ualified specialist workshop at th en ex to pportunity.X
Unti lt hen, always shift th et ra nsmission to position ] before you
switch off th ee ng ine.X
Befor el eaving th ev ehicle, apply th ee lectric parking brake.Display messages 19 9
On-boar dc omputer an dd isplays Z

Display messages
Possible causes/consequences and P Solutions
Y Open/Clos eV ario-
Roo fC ompletel y The roo fisn ot locked.X
Pull ove ra nd stop th ev ehicl es afely as soo nasp ossible, payin g
attention to roa da nd traffic conditions.X
Push or pull and hold th er oo fs witch until th er oo fisf ull yo pen or
closed ( Y
page 78) .
Y Start Engine See
Operator' sM anual The on-boar dv oltag eist oo low.X
Start th ee ng ine.X
Afte ra pproximately te ns econds, repeat th eo pening or closin g
procedure ( Y
page 78).
The roo fh as been opened and closed several times in ar ow .T he roo f
drive has been switched off automatically for safet yr easons.
You can open and close th er oo fa gain after approximately te n
minutes. X
Switc ho ff th ei gnition and tur nitb ac ko n.X
Repeat th eo pening or closin gp rocedure ( Y
page 78).
Close Rea r Sid e Win ‐
dow s You leav et he vehicl ea nd at least on er ear side window is open .X
Clos et he side windows ( Y
page 75).

Safety systems Warning/
indicator
lamp Q Signal type
Possible causes/consequences and P Solutions
'M
Q ' (USA only) or M (Canada only): the red brake system warning lamp is
lit while the engine is running. Aw arning tone also sounds.
G WARNING
There is not enough brake fluid in the brake fluid reservoir.
The braking effect may be impaired.
There is ar isk of an accident.X
Pull over and stop the vehicle safely as soon as possible, paying attention to road
and traffic conditions. Do not continue driving under any circumstances. X
Secure the vehicle against rolling away ( Y
page 131).X
Do not add brake fluid. Adding more will not correct the malfunction. X
Consult aq ualified specialist workshop.X
Observe the additional display messages in the multifunction display.
'
Q USA only: the red brake system warning lamp is lit while the engine is running.
The multifunction display also shows ad isplay message with the & symbol.
The brake pads/linings have reached their wear limit. X
Visit aq ualified specialist workshop.
%
Q The yellow ABS warning lamp is lit while the engine is running.
ABS (anti-lock braking system) is malfunctioning.
If there is an additional warning tone, the EBD (electronic brake force distribution)
is malfunctioning.
Other driving systems and driving safety systems may also malfunction.
G WARNING
The brake system continues to function normally, but without the functions listed
above. The front and rear wheels could therefore lock if you brake hard, for exam-
ple.
The steerability and braking characteristics may be severely affected. 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. X
Observe the additional display messages in the multifunction display. X
Drive on carefully. X
Visit aq ualified specialist workshop immediately.
If the ABS control unit is faulty, there is also ap ossibility that other systems, such
as the navigation system or the automatic transmission, will not be available.204
Warning and indicator lamps
On-board computer and displays