2018 MERCEDES-BENZ SL CLASS stop start

Display messages
Possible causes/consequences and P Solutions
Active Brake Assist
Functions Limite d
See Operator' sM an ‐
ual Active Brake Assis tisu navailable due to am alfunction .X
Visit aq ualified specialist workshop .
Radar Sensor s Dirty
See Operator' sM an ‐
ual The radar sensor system is malfunctioning .
Possibl ec auses are: R
Dirt on sensor sR
Heavy rain or snow R
Whe nd rivin goni nter-urban roads without traffic or infrastructure,
e.g. in desert-like area s
At least on ed rivin gs ystem or drivin gs afet ys ystem is malfunctioning
or is temporarily unavailable :R
Active Brake Assis tR
Distanc eP ilo tD ISTR ONI C
Once th ec aus eoft he problem is no longer present, th ed rivin ga nd
drive safet ys ystems will be available again .T he display message dis-
appears.
If th ed isplay message does no td isappear :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
Secur et he vehicl ea gainst rollin ga way ( Y
page 131).X
Switc ho ff th ee ng ine.X
Clean all sensor s( Y
page 242).X
Restart th ee ng ine.
The display message disappears.
u SRS Malfunction Ser ‐
vic eR equired The restrain ts ystem is malfunctioning .T he u warning lamp also
lights up in th ei nstrumen tc luster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th ee vent of an accident, may no tbet ri ggered .
There is an increased ris kofi njury.X
Visit aq ualified specialist workshop immediately.
Fo rf urther information about th er estrain ts ystem, see ( Y
page 38) .
u Front Lef tM alfunc‐
tio nS ervic e
Required or Front
Right Malfunction
Servic eR equired The restrain ts ystem has malfunctioned at th ef ront on th el ef torr ight .
The u warning lamp also lights up in th ei nstrumen tc luster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th ee vent of an accident, may no tbet ri ggered .
There is an increased ris kofi njury.X
Visit aq ualified specialist workshop immediately. Display messages 18 5
On-boar dc omputer an dd isplays Z

Display messages
Possible causes/consequences and P Solutions
Blind Spo tA ssist
Currently Unavaila‐
ble See Operator' s
Manual Blind Spot Assis tist em porarily inoperative.
Possibl ec auses are: R
Function is impaire dd ue to heav yr ain or snow.R
The radar sensor system is outside th eo perating temperature
range. R
The radar sensor system is temporarily inoperative, e.g. due to
electromagneti cr adiation emitted by nearby TV or radi os ta tion so r
other source sofe lectromagneti cr adiation .
The yellow c indicator lamp sa lso ligh tupint he exterio rm irrors.
Whe nt he causes state da bov enol onger apply, th ed isplay message
disappears.
Blind Spot Assis tiso perational again .
If th ed isplay message does no td isappear :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
Secur et he vehicl ea gainst rollin ga way ( Y
page 131).X
Clean th es ensor s( Y
page 242).X
Restart th ee ng ine.
Blind Spo tA ssist
Inoperative Blind Spot Assis tisf aulty.
The yellow c indicator lamp sa lso ligh tupint he exterio rm irrors.X
Visit aq ualified specialist workshop .
Parkin gG uidance
Inoperative Parking Guidance is malfunctioning ( Y
page 152).X
Restart th ee ng ine.
If th em ultifunction display still shows th ed isplay message :X
Visit aq ualified specialist workshop .
Parkin gG uidance
Canceled Parking Guidance is deactivated.
Possibl ec auses are: R
The vehicl eiss ki dding.R
The sensor sa re dirty.R
Am alfunction has occurred .
Aw arning tone also sounds. X
Reactivat eP arking Guidance later ( Y
page 152).
If th em ultifunction display does no ts ho wt he parking spac es ymbol at
speeds belo w19m ph (30 km/h):X
Clean th es ensor s( Y
page 242).X
Restart th ee ng ine.
If th em ultifunction display still does no ts ho wt he parking spac es ym-
bol at speeds belo w19m ph (30 km/h):X
Visit aq ualified specialist workshop .194
Display messages
On-boar dc omputer an dd isplays

Display messages
Possible causes/consequences and P Solutions
Parking Guidance has been deactivated because you are no longer
followin gt he recommended path. X
Park again and ,w hile doin gs o, observ et he display message sint he
multifunction display.
Parkin gG uidance
Finished The vehicl eisp arked. Aw arning tone also sounds.
The display message disappear sa utomatically.
Distance Pilot Off Distanc eP ilo tD ISTR ONI Cisd eactivated ( Y
page 140).
If it was deactivated automatically, aw arning tone also sounds.
Distance Pilot Now
Available Distanc eP ilo tD ISTR ONI Ciso perational again after having been tem-
porarily unavailable .Y ou can no wr eactivat eD istance Pilo t
DISTRONI C( Y
page 140).
Distance Pilot Cur ‐
rently Unavailable
See Operator' sM an ‐
ual Distanc eP ilo tD ISTR ONI Cist em porarily inoperative.
Possibl ec auses are: R
The radar sensor system is temporarily inoperative, e.g. due to
electromagneti cr adiation emitted by nearby TV or radi os ta tion so r
other source sofe lectromagneti cr adiation .R
The system is outside th eo perating temperature range.R
The on-boar dv oltag eist oo low.
Aw arning tone also sounds.
Whe nt he causes state da bov enol onger apply, th ed isplay message
disappears.
Distanc eP ilo tD ISTR ONI Ciso perational again .
If th ed isplay message does no td isappear :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
Secur et he vehicl ea gainst rollin ga way ( Y
page 131).X
Restart th ee ng ine.
Distance Pilot Inop‐
erativ e Distanc eP ilo tD ISTR ONI Cism alfunctioning .
Aw arning tone also sounds. X
Visit aq ualified specialist workshop .
Distance Pilot Sus ‐
pended You hav ed epressed th ea ccelerato rp edal .D istance Pilo tD ISTR ONI C
is no longer controllin gt he speed of th ev ehicle.X
Remove your foo tf ro mt he accelerato rp edal .
Distance Pilot -- -
mph Ac ondition for activating Distance Pilot DISTRONIC has not been met. X
Check the activation conditions for Distance Pilot DISTRONIC
( Y
page 140).
Cruise Control Off Cruise control has been deactivated.
If aw arning tone also sounds, cruise control has deactivated auto-
matically ( Y
page 138). Display messages 195
On-board computer and displays Z

Display messages
Possible causes/consequences and P Solutions
Cruise Contro l--
-m ph Cruis ec ontro lc anno tbea ctivated, since no ta ll of th ea ctivation con-
dition sh av eb een met .X
Chec kt he activation condition sf or cruise control ( Y
page 138).
Cruise Contro l Inop‐
erativ e Cruis ec ontro lism alfunctioning .
Aw arning tone also sounds. X
Visit aq ualified specialist workshop .
Tires Display messages
Possible causes/consequences and P Solutions
Check Tir e Pressure
Soo n Canada only:
The tire pressur el oss warning system has detecte das ignificant loss
in pressure.
Aw arning tone also sounds.
Possibl ec auses: R
you hav ec ha nged th ep osition soft he wheels and tires or installed
ne ww heels and tires R
th et ir ep ressur eino ne or mor et ir es has dropped
G WARNIN G
Tir ep ressures that are to ol ow pos et he followin gh azards :R
they may burst, especially as th el oad and vehicl es peed increas eR
they may wear excessivel ya nd/o ru nevenly, whic hm ay greatl y
impair tire traction .R
th ed rivin gc ha racteristics ,asw ell as steering and braking ,m ay be
greatl yi mpaire d
There is ar is kofana ccident.X
Stop th ev ehicl ew ithout making any sudden steering or braking
maneuvers .P ay attention to th et ra ffic condition sasy ou do so.X
Secur et he vehicl ea gainst rollin ga way ( Y
page 131).X
Chec kt he tires and ,ifn eces sary, follow th ei nstruction sf or af lat
tire ( Y
page 246). X
Chec kt he tire pressures and ,ifn eces sary, correc tt he tire pressure.X
Restart th et ir ep ressur el oss warning system when th et ir ep res-
sur eisc orrect ( Y
page 267).
Check Tir e Pressure
The nR estar tR un
Fla tI ndicator Canada only:
The tire pressur el oss warning system generated ad isplay message
and has no tb een restarte ds ince .X
Se tt he correc tt ir ep ressur eina ll fou rt ir es .X
Restart th et ir ep ressur el oss warning system ( Y
page 267).196
Display messages
On-boar dc omputer an dd isplays

Display messages
Possible causes/consequences and P Solutions
Run Fla tI ndicator
Inoperative Canada only:
The tire pressur el oss warning system is faulty.X
Visit aq ualified specialist workshop .
Please Correc t Tir e
Pressure US Ao nl y:
The tire pressur eist oo low in at least on eoft he tires ,ort he tire
pressur ed ifference between th ew heels is to og reat.X
Chec kt he tire pressures at th en ex to pportunity ( Y
page 267).X
If necessary, correc tt he tire pressure.X
Restart th et ir ep ressur em onitor ( Y
page 270).
Tir eP ressure Soo n The tire pressur eino ne or mor et ir es has dropped significantly. The
whee lp osition is shown in th em ultifunction display.
Aw arning tone also sounds.
G WARNIN G
Tir ep ressures that are to ol ow pos et he followin gh azards :R
they may burst, especially as th el oad and vehicl es peed increas eR
they may wear excessivel ya nd/o ru nevenly, whic hm ay greatl y
impair tire traction .R
th ed rivin gc ha racteristics ,asw ell as steering and braking ,m ay be
greatl yi mpaire d
There is ar is kofana ccident.X
Stop th ev ehicl ew ithout making any sudden steering or braking
maneuvers .P ay attention to th et ra ffic condition sasy ou do so.X
Secur et he vehicl ea gainst rollin ga way ( Y
page 131).X
Chec kt he tires and ,ifn eces sary, follow th ei nstruction sf or af lat
tire ( Y
page 246). X
Chec kt he tire pressur e( Y
page 267).X
If necessary, correc tt he tire pressure.
Warnin gT ir eM al ‐
function The tire pressur eino ne or mor et ir es has dropped suddenly. The whee l
position is shown in th em ultifunction display.
G WARNIN G
Drivin gw it haf lat tire poses ar is koft he followin gh azards :R
af lat tire affects th ea bilit yt os te er or brak et he vehicl eR
you could lose control of th ev ehicle.R
continued drivin gw it haf lat tire will caus ee xces sive heat build-up
and possibl yaf ir e
There is ar is kofana ccident.X
Stop th ev ehicl ew ithout making any sudden steering or braking
maneuvers .P ay attention to th et ra ffic condition sasy ou do so.X
Secur et he vehicl ea gainst rollin ga way ( Y
page 131).X
Chec kt he tires and ,ifn eces sary, follow th ei nstruction sf or af lat
tire ( Y
page 246). Display messages 19 7
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).

X
Reac hi nt ot he gap, pull hoo dc atch handle D
up and lift hoo d C .
If you lift th eh oo dbya pproximately 15 in
(40 cm), th eh oo diso pened and held open
automatically by th eg as-filled strut .
Closin gt he hoodX
Lowe rt he hoo da nd let it fall from ah eight of
approximately 8in( 20 cm).X
Chec kt ha tt he hoo dh as engage dp roperly.
If th eh oo dc an be raised slightly, it is no t
properly engaged. Open it again and close it
wit hal ittl em or ef orce .
Engine oil
Notes on th eo il levelDependin gony our driving style, th ev ehicl e
consumes up to 0. 9USq t( 0.8 liters )ofo il pe r
60 0m iles (1,000 km). Th eo il cons umption may
be higher than th is when th ev eh icle is ne wori f
you frequently driv eath igh engin es peeds.
Depen din gont he engine, th eo il dipst ick may be
in ad ifferent location.
When checking th eo il leve l:R
park th ev eh icle on al eve ls urfaceR
th ee ng in es hould be swit ched off for appr ox-
imately fiv em in ute sift he engin eisatn orma l
operatin gt em pe ratureR
if th ee ng in eisn ot at normal operatin gt em -
perature, e.g .ift he engin ew as on ly started
brie fly, wait about 30 minute sb efore carrying
out the measurement Checking the oil level using the oil dip-
stick
G WARNING
Certain component sint he engine compart-
ment ,s uch as the engine, radiator and parts
of the exhaust system, can become very hot.
Workin gint he engine compartment poses a
risk of injury.
Only touch the following component sd escri-
bed.
Example X
Pull oil dipstick C out of the dipstick guide
tube. X
Wipe off oil dipstick C .X
Slowly slide oil dipstick C into the guide tube
to the stop, and take it out again.
If the level is between MIN mark

Workin gint he engine compartment poses a
risk of injury.
Where possible, let the engine cool down and
touch only the component sd escribed in the
following.
G WARNING
The cooling system is pressurized, particularly
when the motor is warm. If you open the cap,
you could be scalded if hot coolant sprays out.
There is ar isk of injury.
Let the engine cool down before you open the
cap. Wear gloves and eye protection. Slowly
open the cap to relieve pressure.
Example X
Park the vehicle on al evel surface.
Only check the coolant level when the vehicle
is on al evel surface and the engine has cooled
down. X
Turn the SmartKey to position H in the igni-
tion lock ( Y
page 116).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice ( Y
page 116).X
Check the coolant temperature gage in the
multifunction display.
The coolant temperature must be below
158 ‡( 70 †).X
Turn the SmartKey to position