2012 MERCEDES-BENZ CLS COUPE fuel cap

Electronic Stability Program
see ESP ®
(Electronic Stabilit yProgram)
Electronic Traction System
see ETS/4ETS (Electronic Trac-
tionS ystem)
Emergency key
Unlocking th edriver's doo r.............. 84
Emergency key element
Function/notes ................................ 78
Locking vehicle ................................ 84
Emergency release
Driver's door .................................... 84
Fuel filler fla p................................. 157
Emergency spare wheel
Important safety notes ..................351
Inflating the collapsibl espare
wheel ............................................. 352
Points to remember .......................351
Removing ....................................... 351
Storage location ............................ 351
Stowing .......................................... 352
Technical data ............................... 354
Emergency unlocking
Vehicle ............................................. 84
Engine
Display message ............................ 240
ECO start/stop function ................144
Engine numbe r............................... 359
Jump-starting ................................. 319
Running irregularl y......................... 147
Starting problems ..........................147
Starting the engine with the key ....143
Starting with KEYLESS GO .............143
Stopping ........................................ 160
Tow-starting (vehicle )..................... 323
Warning lamp (engine diagnos-
tics) ............................................... 266
Engine electronics
Notes ............................................. 357
Problem (fault) ............................... 147
Engine oil
Additives ........................................ 364
Checking the oil leve l..................... 297
Checking the oil leve lusing the
dipstick .......................................... 298
Display message ............................ 242
Filling capacity ............................... 364Notes about oil grades ................... 363
Notes on oil level/consumption
....297
Temperature (on-board computer) .228
Topping up ..................................... 298
Viscosity ........................................ 364
Environmental protection
Returning an end-of-life vehicle .......21
ESP ®
(Electronic Stability Pro-
gram) AMG menu (on-board computer) ...228
Deactivating/activating (AMG
vehicles) .......................................... 66
Deactivating/activating (except
AMG vehicles) ................................ 219
Deactivating/activating (notes;
except AMG vehicles) ......................66
Display message ............................ 232
ETS/4ETS ........................................ 66
Function/notes ................................ 65
Important safety guidelines .............65
Warning lamp ................................. 263
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 66
Exhaus ttail pipe (cleaning instruc-
tions) .................................................. 305
Exterior lighting Settings options ............................ .110
see Lights
Exterior mirrors
Adjusting ....................................... 105
Anti-dazzle mode (automatic) ........106
Folding in/ou t(automatically) .......106
Folding in/ou t(electrically) ...........105
Folding in whe nlocking( on-board
computer) ...................................... 227
Out of position (troubleshooting) ...106
Parking position ............................. 106
Resetting ....................................... 106
Storing settings (memory func-
tion) ............................................... 107 F
Faul tmessage
see Display messages
Filler cap
see Fuel filler flap
Fire extinguisher ............................... 31110
Index

First-aid kit
........................................ .310
Fitting awheel
Removing awheel .......................... 339
Fitting wheels
Fitting awheel ............................... 340
Lowering the vehicle ......................340
Raising the vehicle .........................338
Securing the vehicle against roll-
ing away ........................................ 337
Flat tyre
MOExtended tyres .........................313
Preparing the vehicle .....................312
TIREFIT kit ...................................... 313
Floormat ............................................ .292
Foglamps (extende drange) .............. 116
Frequencies Garage door opener .......................289
Mobile phone ................................. 357
Two-way radio ................................ 357
Fuel
Additives ........................................ 361
Consumption information ..............363
Consumption statistics ..................213
Displaying the current consump-
tion ................................................ 213
Displaying the range ......................213
Fuel gauge ............................... 30, 209
Grade (petrol) ................................ 360
Important safety notes ..................360
Notes for AMG vehicles .................361
Problem (malfunction) ...................158
Quality (diesel )............................... 362
Refuelling ...................................... .156
Tank content/reserve fuel .............360
Fue lfiller flap
Emergency release ........................157
Opening/closing ............................ 157
Fue lfilte r(whit edispla ymessage) .243
Fue llevel
Calling up the range (on-board
computer) ...................................... 213
Gauge ...................................... 30, 209
Fue lreserve
see Fuel
Fue ltank
Capacity ........................................ 360
Problem (malfunction) ...................158Fuse allocatio
nchart (vehicle tool
kit) ...................................................... 311
Fuses Allocation chart ............................. 324
Before changing ............................. 324
Fuse box in the boot ......................325
Fuse box in the engine compart-
ment .............................................. 324
Important safety notes ..................324 G
Garage door opener Clearing the memory .....................289
Frequencies ................................... 289
Important safety notes ..................287
Opening/closing the garage door ..288
Programming (button in the rear-
view mirror) ................................... 287
Gear indicator (on-board com-
puter) ................................................. .228
Gearshift program SETUP (on-board computer) ..........228
Genuine Mercedes-Benz parts .........356
Glove compartment ..........................273 H
Handbrake see Parking brake
Hazard warning lamps ......................114
Headbag Display message ............................ 237
Headlamp
Cleaning system (function) ............114
Cleaning system (notes) ................366
Headlamps
Misting up ...................................... 117
Topping up the cleaning system ....299
see Automatic headlamp mode
Head restraints
Adjusting ......................................... 98
Adjusting (electrically). ....................99
Adjusting (manually). .......................98
Adjusting (rear) ................................ 99
Fitting/removing (rear) ....................99
Luxury .............................................. 99 Index
11

Refuelling
Opening/closing the fue lfille rflap :
To open the fuel filler flap
; To inser tthe fuel filler cap
= Tyre pressure table
? Fuel type to be refuelled
The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
The position of the fuel filler cap is displayed
8 in the instrumentc luster. The arrow
next to the filling pump indicates the side of
the vehicle.
Opening X
Switch off the engine.
X Remove the key from the ignition lock.
X KEYLESS-GO: open the driver's door.
This corresponds to key position 0:"key
removed".
The driver's door can be closed again.
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap opens slightly.
X Open the fuel filler flap fully.
X Turn the fuel filler flap anti-clockwise and
remove it. X
insert the fuel filler cap into the holder on
the inside of fuel filler flap ;
X Completely insert the filler neck of the fuel
pump nozzle into the tank and refuel.
X Only fill the tank until the pump nozzle
switches off.
i Do not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out.
Closing X
Replace the cap on the filler neck and turn
clockwise until it engages audibly.
X Close the fuel filler flap.
i Close the fuel filler flap before locking the
vehicle. Otherwise, the locking pin of the
central locking prevents the fuel filler flap
from closing. Fuel filler flap emergency release
X open the boot lid. X
Slide the luggage net down.
X Open the right-hand side trim panel.
X Remove the first-aid kit (Y page 310).
X Detach the emergency release from
retainer :.
X Pull the emergency release in the direction
of arrow ;.
The fuel filler flap is released.
X Open the fuel filler flap. Refuelling
157Driving and parking Z

icantly impair the vehicle's braking and driv-
ing characteristics. There is
arisk of accident.
Do not continue driving. Contact aqualified
specialist workshop.
X Correc tthe tyre pressure if it is still at least
130 kPa (1.3 bar/19 psi) (see the fuel filler
flap for values).
X To increase the tyre pressure: switch on
the tyre inflation compressor. X
To reduce the tyre pressure: depress
pressure release button Enext to pres-
sure gauge F.
X If the tyre pressure is correct,u nscrew the
filler hose from the valve of the repaired
tyre.
X Screw the valve cap onto the valve of the
repaired tyre.
X Pull the tyre sealant bottle out of the tyre
inflation compressor.
The filler hose stays on the tyre sealant
bottle.
X Stow the tyre sealant bottle, the tyre infla-
tion compressor and the warning triangle.
X Drive to the nearest qualified specialist
workshop and have the tyre changed there.
X Have the tyre sealant bottle replaced as
soon as possible at aqualified specialist
workshop.
X Have the tyre sealant bottle replaced every
four years at aqualified specialist work-
shop. i
In your vehicle, you will find asticker with
the Mercedes-Ben zService24h telephone
number, e.g. on the B-pillar on the driver's
side. Battery (vehicle)
Important safet
ynotes
Work on the battery, e.g. removin gorinstal-
ling, requires specialist knowledge and the
use of special tools. Therefore, alway shave
work on the batter ycarried out at aqualified
specialist workshop. G
WARNING
Work carried out incorrectly on the battery
can, for example, lead to ashort circuit and
damage your vehicle's electronic system. This
can disrupt driving safety systems such as
ABS (anti-lock brakin gsystem) or ESP ®
(Elec-
tronic Stabilit yProgram).
R If AB Smalfunctions, th ewheels can lock
during braking. This limits th esteerability
of th evehicl ewhen brakin gand th ebraking
distanc emay increase .There is arisk of
accident.
R If ESP ®
malfunctions, the vehicle will not be
stabilised if it starts to skid or awheel starts
to spin. There is arisk of accident.
You should therefore have all work involving
the battery carried out at aqualified specialist
workshop. G
WARNING
Comply with safety precautions and take pro-
tective measures when handling batteries. Risk of explosion
Fire, naked flames and
smoking are prohibited
when handling the battery.
Avoid creating sparks.316
Battery (vehicle)Breakdown assistance

Jump-starting
G
WARNING
There is arisk of acid burns when jump-starting avehicle due to the gases which escape from
the battery. Do not lean over the battery while the engine is being jump-started. G
WARNING
Gases escaping from the battery during jump-starting may cause minor explosions. Avoid cre-
ating sparks. Keep naked flames away from the battery, and do not smoke.
Comply with the important safety precautions when handling batteries. You will find these under
"Battery (vehicle) -important safety notes" in the index. G
WARNING
Non-combusted fuel can collect in the exhaust system and ignite. There is arisk of fire. Avoid
repeated and lengthy starting attempts.
! Vehicles with apetrol engine: avoid repeated and length ystarting attempts. Otherwise,
th en on-combusted fuel may damage th ecatalytic converter.
Do not use arapid chargin gdevic etos tart th evehicle. If your vehicle's batter yisdischarged,
the engin ecan be jump-started from another vehicle or from asecon dbatter yusing jump
leads. Observe the following points:
R The batter yisnot accessible in all vehicles. If the other vehicle's batter yisnot accessible,
jump-start the vehicle using asecond battery or ajump-starting device.
R vehicles with apetrol engine: onlyjump-star tthe vehicle when the engine and exhaust
system are cold.
R do not start the engine if the battery is frozen.L et the battery thaw first.
R jump-starting may only be performed from batteries with anominal voltage of 12 V.
R only use jump leads that have asufficient cross-section and insulated terminal clamps.
R if the battery is fully discharged, leave the battery that is being used to jump-start connected
for afew minutes before attempting to start. This charges the empty battery alittle.
R make sure that the two vehicles do not touch.
Make sure that:
R The jump leads are not damaged.
R Non-insulated parts of the terminal clamps do not come into contact with other metal parts
while the jump leads are connected to the battery.
R the jump leads cannot come into contact with parts such as the V-belt pulleyort he fan.
These parts move when the engine is started and while it is running.
X Firmly depress the parking brake.
X Shift the transmission to position P.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the bonnet (Y page 296).
Position number Bidentifies the charged battery of the other vehicle or an equivalent jump-
startingd evice. Jump-starting
319Breakdown assistance Z

Service products includ
ethe following:
R fuels (e.g. petrol ,diesel)
R lubricants (e.g. engine oil, transmissio noil)
R coolant
R brak efluid
R windscreen washer fluid
R climate control system refrigerant
Component sand service products must be
matched .Mercedes-Ben zrecommends that
you use products tested and approved by
Mercedes-Benz. They are listed in this
Mercedes-Ben zOwner's Manual in th eappro-
priat esection.
You can identif yservice product sapproved
by Mercedes-Ben zbythefollowing inscrip-
tion sont hecontainer:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designation sorrecommendation sind i-
cat eal evel of qualit yoras pecification in
accordance wit hanMBSheet Number (e.g.
MB 229.5). The yhave no tnecessarily been
approved by Mercedes-Benz.
Further information can be obtained from any
Mercedes-Benz Service Centr eoronthe
Internet at http://bevo.mercedes-benz.com. Fuel
Important safety notes G
WARNING
Fuel is highly flammable. Fire, naked flames
and smokin gare therefor eprohibited when
handlin gfuels.
Switc hoff th eenginea nd th eauxiliary heating
before refuelling. G
WARNING
Avoid contact wit hfuels.
It is hazardous to your healt hifyour skin
comes int odirect contact wit hfuel sory ou
breath einfuel vapours. Tank capacity The total capacit
yofthe fuel tan kmay vary,
dependin gonthevehicle equipment. Model Total capa-
city CLS 250 CDI BlueEFFI-
CIENCY
59.0 l
or
80.0 l All other models (except
CLS 63 AMG)
80.0 l
CLS 63 AMG
66.0 l
or
80.0 l Model Of which
reserve: Models with 59.
0ltotal
capacity Approx-
imately 8. 0l Models with 80.
0ltotal
capacity Approx-
imately 9. 0l CLS 63 AMG
Approx.
14.0 l Petrol (EN 228,
EDIN 51626-1) Fuel grade
!
Do no tuse diesel to refuel vehicles with a
petrol engine. Even asmall quantity of die-
sel willd amage the fuel injection system.
! Only refue lusing unleaded petrol with at
least 95 RON/85 MON that conforms to
European standard EN 228 or EDIN
51626-1 or an equivalent specification.
Fuel with this specification may contain up
to 10 %ethanol.
! Do not use the following:
R E85 (petrol with 85 %ethanol)
R E100 (100 %ethanol)
R M15 (petrol with 15 %methanol) 360
Service products and capacitiesTechnical data

R
M85 (petrol with 85 %methanol)
R M100 (100 %methanol)
R Petrol with metallic additives
R Diesel
Do not mix these fuels with petrol, and do
not use any additives. This can otherwise
lead to engine damage. This does not
include cleaning additives for the removal
and prevention of residue build-up. Only
cleaning additives recommended by
Mercedes-Ben zshould be added to petrol,
see "Additives". You can obtain further
information from any Mercedes-Benz
Service Centre.
Usuallyy ou will find information about the
fuel grade on the pump. If you cannot find the
label on the petrol pump, ask the filling sta-
tion staff.
i E10 fuel contains up to 10 %bioethanol.
Your vehicle is suitable for use with E10
fuel. You can refuel your vehicle using E10
fuel.
i If the recommended fuel is not available,
but only as atemporary measure, you may
also use unleaded petrol with an octane
rating of 91 RON/82.5 MON. This may
reduce engine performance and increase
fuel consumption .Avoid driving at full
throttle.
Information on refuelling (Y page157).
AMG vehicles
! Only refue lusing super unleadedp etrol
with at least 98 RON/88 MON that con-
forms to European standard EN 228 or an
equivalent specification.
You can otherwise impair engine outpu tor
damage the engine.
! Premium-grade unleaded petro lwith an
octane ratin gof95RON/85 MON may be
used as atemporary measure if the recom-
mended fuel is not available. This may
reduce engin eperformanc eand increase
fuel consumption .Asmuch as possible,
avoid driving at full throttle. !
Regular unleadedp etrol with an octane
rating of 91 RON/82.5 MON may also be
used as atemporary measure if the recom-
mended fuel is not available.
Doing so results in noticeably higher fuel
consumption, and the engine power output
is noticeably reduced. Avoid driving at full
throttle.
If only regularu nleaded petrol with an
octane rating of 91 RON/82.5 MON or
lowe risa vailable, you must have the vehi-
cle adapted to this fuel at aqualified spe-
cialist workshop.
i E10 fuel contains up to 10 %bioethanol.
Your vehicle is suitablef or use with E10
fuel. You can refuel your vehicle using E10
fuel.
CLS 350 BlueEFFICIENCY
! Only refuel using premium-grade sulphur-
free unleadedp etrol with at least 95 RON/
85 MON that conformstoE uropean stand-
ard EN 228 or an equivalent specification.
You could otherwise impair engine output
or damage the emission control system.
i In some countries, the available petrol
may not be sufficiently low in sulphur. This
fuel can temporarily produce unpleasant
odours, especially on short journeys. As
soon as sulphur-free fuel (sulphur content
<10p pm) is used for refuelling, the odours
are reduced.
Additives
! Do not refuel with low grade fuel and do
not use fuel additives that have not been
tested and approved for Mercedes-Benz
vehicles. Otherwise the fuel system could
malfunction or be damaged.
One of the major problems with low-grade
fuel is the creation of carbon deposits during
the proces sofburningfuel. Mercedes-Benz
recommends that you use fuel brands that
have additives.
If you use fuels without these additives for a
longer period of time, ther emay be abuild-up Service product
sand capacities
361Technical data Z

of carbon deposits. These will form especially
on the inlet valves and in the combustion
chamber.
This could lead to engine runnin gproblems,
e.g.:
R longer engine warm-up phase
R uneven idle
R engine noise
R misfiring
R loss of power
In areas where petrol with the required addi-
tives is not available, carbon deposits can
build up. In this case, Mercedes-Benz recom-
mends the use of additives that have been
approved for Mercedes-Benz vehicles; see
http://bevo.mercedes-benz.com.
The quality of the fuel available in some coun-
tries may not be sufficient .Residue could
build up as aresult. In such cases, and in
consultation with aMercedes-BenzS ervice
Centre, the petrol may be mixed with the
additive recommended by Mercedes-Benz
(part no. A000989254510). You must
observe the notes and mixin gratios specified
on the container.
Consult aMercedes-BenzS ervice Centreto
view alist of approved products. Observe the
instructions for use in the product descrip-
tion.
Do not mix other fuel additives with fuel. This
causes unnecessary cost sand could damage
the engine.
Diesel (EN 590) Fuel grade
G
WARNING
Do not use petrol to refuel vehicles with adie-
sel engine. Do not mix diesel with petrol. This
would result in damage to the fuel system and
engine, which could lead to avehicle fire.
! When refuelling, only use diesel fuel that
conforms to the European standard EN 590
or is of equivalent quality. Fuel that does not conform to EN 590 can lead to
increased wear as well as damage to the
engin
eand exhaust system.
! Do not use the following:
R marine diesel
R heating oil
R bio-diesel
R vegetable oil
R petrol
R paraffin
R kerosene
Do not mix such fuels with diesel fuel and
do not use any special additives. This can
otherwise lead to engin edamage. This
does not include flow improver additives.
For further information ,see "Flow improv-
ers".
! Vehicles with adiesel particle filter: in
countries outside the EU, only refuel with
low-sulphur Euro diesel with asulphur con-
ten tunde r50p pm; otherwise the emission
contro lsystem could be damaged.
! Vehicles without adiesel particle fil-
ter: in countries where only diesel fuel with
ah igh sulphur conten tisavailable, you will
need to carry out your vehicle's oil change
at shorter intervals. More information
aboutt he interval for oil change can be
obtained from any qualified specialist
workshop.
Usuallyy ou will find information about the
fuel grade on the pump. If you cannot find the
label on the petrol pump, ask the filling sta-
tion staff.
Information on refuelling (Y page 157).
Low outside temperatures
In winter months, diesel fuel with an improved
cold flow quality is available. In Europe, the
EN 590 standard defines various climate-
dependent temperature categories. Malfunc-
tions can be avoided by refuelling with diesel
fuel that corresponds to the climatic specifi-
cations outlined in EN 590. At unusually low 362
Service products and capacitiesTechnical data