
4
Auxiliary heating
  . . . . . . . . . . . . 166, 264
Adjusting (on-board computer)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Display message . . . . . . . . . . . . . . 239
Remote control . . . . . . . . . . . . . . . 167
Auxiliary ventilation  . . . . . . . . . . . . . 166
Axle load, maximum permissible
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310 B
BAS (Brake Assist)  
. . . . . . . . . . . . . . . . 58
Battery Changing (auxiliary heating
remote control) . . . . . . . . . . . . . . . 270
Changing (key) . . . . . . . . . . . . . . . . 270
Changing (KEYLESS GO key) . . . . . 270
Charging . . . . . . . . . . . . . . . . . . . . . 290
Checking (key) . . . . . . . . . . . . . . . . 270
Checking (KEYLESS GO key) . . . . . 270
Check lamp (key) . . . . . . . . . . . . . . 270
Check lamp (KEYLESS GO key)
 . . . . . . . . . . . . . . . . . . . . . . . . . 69, 270
Disconnecting . . . . . . . . . . . . . . . . 290
Display message . . . . . . . . . . . . . . 228
Maintenance (vehicle) . . . . . . . . . . 288
Reconnecting . . . . . . . . . . . . . . . . . 291
Removing/fitting . . . . . . . . . . . . . . 290
Vehicle battery . . . . . . . . . . . . . . . . 288
Voltage (on-board computer) . . . . . 116 Belt force limiters
Activation 
 . . . . . . . . . . . . . . . . . . . . . 43
Belt height adjustment  . . . . . . . . . . . . 90
Belt tensioners Activation . . . . . . . . . . . . . . . . . . . . . 43
Belt warning . . . . . . . . . . . . . . . . . . . . . 89
Bonnet Bonnet catch . . . . . . . . . . . . . . . . . 194
Display message . . . . . . . . . . . . . . 228
Opening/closing . . . . . . . . . . . . . . 193
Bonnet release lever
Release lever . . . . . . . . . . . . . . . . . 194
Boot
Emergency release . . . . . . . . . . . . . 267
Locking separately . . . . . . . . . . . . . . 71
Opening/closing (automatically)  .  .  . 72
Opening/closing (manually) . . . . . . . 70
Boot lid
Display message . . . . . . . . . . . . . . 228
Brake
Warning lamp . . . . . . . . . . . . . . . . . 245
Brake Assist
see BAS                                                    
Brake fluid  . . . . . . . . . . . . . . . . . . . . . 317
Display message . . . . . . . . . . . . . . 231
Brake lamps
Adaptive . . . . . . . . . . . . . . . . . . . . . . 58
Display message . . . . . . . . . . . . . . 234 Brake system
Display message  . . . . . . . . . . . . . . 230
Parking brake . . . . . . . . . . . . . . . . . 104
Bulb
Dipped-beam headlamps . . . . . . . . 273
Licence plate lamp . . . . . . . . . . . . . 274
Main-beam headlamps . . . . . . . . . . 273
Parking lamp . . . . . . . . . . . . . . . . . 273
Replacing . . . . . . . . . . . . . . . . 273, 274
Side lamp . . . . . . . . . . . . . . . . . . . . 273
Turn signal lamp . . . . . . . . . . . . . . . 274
see Lamp                                                  
Bulbs
Overview . . . . . . . . . . . . . . . . . . . . 271 C
Calling up a malfunction see Message memory menu 
                   
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Automatic car wash . . . . . . . . . . . . 211
Distronic . . . . . . . . . . . . . . . . . . . . 213
Headlamps . . . . . . . . . . . . . . . . . . . 212
High-pressure cleaners . . . . . . . . . 211
Parktronic . . . . . . . . . . . . . . . . . . . 214
Plastic trim . . . . . . . . . . . . . . . . . . . 212
Rear window . . . . . . . . . . . . . . . . . 212
Side windows . . . . . . . . . . . . . . . . . 212
CD player/CD changer
Operating (on-board computer)  .  .  . 119 Index
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11
Rain sensor
Windscreen wipers  . . . . . . . . . . . . . . 98
Range (on-board computer) . . . . . . . 130
R button
see Reset button                                      
Rear foglamp
Display message . . . . . . . . . . . . . . 235
Rear-view mirror
Adjusting . . . . . . . . . . . . . . . . . . . . . 83
Anti-dazzle (manual) . . . . . . . . . . . . . 83
Anti-dazzle mode (automatic)  .  .  .  .  . 85
Rear window
Cleaning . . . . . . . . . . . . . . . . . . . . . 212
Rear window blind  . . . . . . . . . . . . . . . 180
Rear window heating Malfunction indicator lamp . . . . . . 242
Refuelling  . . . . . . . . . . . . . . . . . . . . . . 190
Remote control Auxiliary heating . . . . . . . . . . . . . . 167
Changing the batteries (auxiliary
heating) . . . . . . . . . . . . . . . . . . . . . 270
Garage door opener . . . . . . . . . . . . 186
Programming (garage door
opener) . . . . . . . . . . . . . . . . . . . . . . 186
Replacing the wiper blades  . . . . . . . 275
Reserve Display message . . . . . . . . . . . . . . 240
Reserve fuel  . . . . . . . . . . . . . . . . . . . . 311
Display message . . . . . . . . . . . . . . 240 Fuel tank . . . . . . . . . . . . . . . . . . . . 311
Warning lamp . . . . . . . . . . . . . . . . . 250
Reset button . . . . . . . . . . . . . . . . . . . 110
Restraint system
Airbags . . . . . . . . . . . . . . . . . . . . . . . 45
Display message . . . . . . . . . . . . . . 227
Restraint systems
For children . . . . . . . . . . . . . . . . . . . 49
Retaining hooks (boot)  . . . . . . . . . . . 176
Rev counter . . . . . . . . . . . . . . . . . . . . 111
Reverse gear Engaging (automatic transmission) 105
Reversing lamp
Display message . . . . . . . . . . . . . . 236
Roller sunblind
Rear window . . . . . . . . . . . . . . . . . 180
Roof load, maximum  . . . . . . . . . . . . . 310
Roof rack . . . . . . . . . . . . . . . . . . . . . . 173
Run-on time (mobile phone)  . . . . . . . 184 S
Seat Adjusting 
. . . . . . . . . . . . . . . . . . 75, 77
Correct driver's seat position . . . . . . 90
Storing settings . . . . . . . . . . . . . . . . 86
Seat belt
Adjusting the height . . . . . . . . . . . . . 90
Fastening . . . . . . . . . . . . . . . . . . . . . 88
Warning lamp . . . . . . . . . . . . . . 89, 249 Seat heating 
. . . . . . . . . . . . . . . . . . . . . 80
Seat ventilation  . . . . . . . . . . . . . . . . . . 80
Malfunction indicator lamp  .  .  .  .  .  . 241
Selector lever
Display message . . . . . . . . . . . . . . 223
Positions . . . . . . . . . . . . . . . . . . . . 105
Service
Display message . . . . . . . . . . . . . . 209
Service display
see ASSYST PLUS                                    
Service indicator
see ASSYST PLUS                                    
Service products . . . . . . . . . . . . . . . . 311
Brake fluid . . . . . . . . . . . . . . . . . . . 317
Coolant . . . . . . . . . . . . . . . . . . . . . 316
Windscreen washer fluid . . . . . . . . 317
Settings
Calling up a stored setting . . . . . . . . 87
Factory (key) . . . . . . . . . . . . . . . 66, 67
Factory (KEYLESS GO) . . . . . . . . . . . 68
Factory (on-board computer) . . . . . 121
Shift ranges
Automatic transmission . . . . . . . . . 106
Display in the speedometer . . . . . . 105
Sidebags  . . . . . . . . . . . . . . . . . . . . . . . . 47
Side window Fault . . . . . . . . . . . . . . . . . . . . . . . . 260
Opening/closing . . . . . . . . . . . . . . . 98
Resetting . . . . . . . . . . . . . . . . . . . . 100 Index
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Care
210 Calling up the service due date
Use the buttons on the multi-function steer-
ing wheel.
X Switch on the ignition.
X Press è or ÿ to select the  Basic
display menu (Y page 115).
X Press j or k to select the service
information.
The 9 service symbol and the service
due date are displayed.
X To select a different display, press  j,
è or ÿ. Care
Notes on care
Regular and proper care maintains the value
of your vehicle.
i It 
is advisable to use Mercedes-Benz care
products.
Scratches, corrosive deposits, areas affected
by corrosion and damage caused by inade-
quate care cannot always be completely
repaired. In such cases, visit a qualified spe-
cialist workshop immediately, e.g. a
Mercedes-Benz Service Centre.
Repair damage caused by loose chippings
and remove the following substances imme-
diately, whilst avoiding rubbing too hard:
R Soak insect remains with insect remover
and rinse off afterwards.
R Soak bird droppings with water and rinse
off afterwards.
R Remove tree resin, oils, fuels and grease by
rubbing gently with a cloth soaked in clean-
ing or lighter fluid.
R Use silicone remover to remove wax.
R Use tar remover to remove tar stains. H
Environmental note
Dispose of empty packaging, cleaning
cloths and polishing wads in an environ-
mentally responsible manner.
!  Do not affix:
R stickers
R films
R magnetic plates or similar
to painted surfaces, otherwise you could
damage the paintwork. Vehicle care
!   
Do not park the vehicle for a long period
of time directly after cleaning, especially if
the wheels have just been cleaned with a
wheel cleaner. Wheel cleaners could cause
rapid corrosion of the brake discs and
brake pads/linings. After cleaning, park
the vehicle when it is at normal operating
temperature. Operation
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Display messages
231Display messages Possible cause/consequence Possible solution
3 EBV, ABS, ESP inop-
erative See Own-
er's Manual
G
Risk of accident
EBV, ABS and ESP ®
  are unavailable due to
a malfunction. BAS has also been deacti-
vated. PRE-SAFE ®
 is therefore also not
operational.
The brake system is still available with
complete brake boosting effect. X
Drive on carefully.
X Visit a qualified specialist workshop immedi-
ately. 3 Check brake fluid
level
G
Risk of accident
There is insufficient brake fluid in the
brake fluid reservoir. X
Pull over as soon as it is safe to do so.
X Do not continue driving under any circumstan-
ces.
X Consult the nearest qualified specialist work-
shop.
X Do not top up the brake fluid. This will not rec-
tify the malfunction. ! Release parking
brake You are driving with the parking brake on. X
Release the parking brake. [ Clean fuel filter X
Visit a qualified specialist workshop. Practical advice
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Troubleshooting
245Problem Possible cause/consequence Suggested solutions
v
The yellow ESP ®
 warning
lamp flashes while the
vehicle is in motion. G
Risk of accident
ESP ®
 or traction control has
intervened because at least one
wheel has started to spin.
Cruise control or Distronic* is
deactivated. X
Only depress the accelerator pedal as far as necessary when pull-
ing away.
X Release the accelerator pedal while you are driving.
X Adapt your driving style to suit the road and weather conditions.
X Do not deactivate ESP ®
. Exceptions:  (Y page 59).3
The red brake system
warning lamp comes on
while you are driving. You
will also hear a warning
tone. You are driving with the parking
brake applied. X
Release the parking brake.
The warning lamp goes out and the warning tone ceases. 3
The red brake system
warning lamp comes on
while the engine is run-
ning. You will also hear a
warning tone. G
Risk of accident
There is insufficient brake fluid in
the fluid reservoir. X
Do not continue driving under any circumstances.
X Consult a qualified specialist workshop immediately.
X Observe the additional messages in the multi-function display
(Y page 219).
X Under no circumstances should you top up the brake fluid. This will
not rectify the fault. l
The red distance warning
lamp* lights up while the
vehicle is in motion. G
Risk of accident
The distance to the vehicle in
front is too short for the speed
selected. X
Increase the distance. Practical advice
* optional
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Service products and capacities
311Service products and capacities
Notes on service products and capaci-
ties
Service products are:
R fuels (e.g. petrol, diesel)
R lubricants 
(e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washer fluid
Mercedes-Benz recommends that you only
use those products which have been tested
and specially approved by Mercedes-Benz for
your vehicle and are listed in the Mercedes-
Benz Owner's Manual in the relevant chapter
since:
R parts and service products are matched
R damage caused by the use of non-approved
service products is not covered by the war-
ranty
You can recognise service products approved
by Mercedes-Benz by the following inscrip-
tion on the containers:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51) Other designations or recommendations that
relate 
to a level of quality or a specification in
accordance with an MB Approval have not
necessarily been approved by Mercedes-
Benz.
You can obtain further information from any
Mercedes-Benz Service Centre. G
Risk of injury
When handling, storing and disposing of
any service products, please observe the
relevant regulations, as you could other-
wise endanger yourself and others.
Keep 
service products away from children.
To protect your health, do not allow service
products to come into contact with your
eyes or open wounds. See a doctor imme-
diately if any service product is swallowed. H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner. Fuels
G
Risk of explosion
Fuel is highly flammable. Fire, naked flames
and 
 smoking are therefore prohibited when
handling fuels.
Before refuelling, turn off the engine and
the auxiliary heating*. G
Risk of injury
Do not allow fuel to come into contact with
skin or clothing.
Allowing fuels to come into direct contact
with your skin or inhaling fuel vapours is
damaging to your health.
Tank capacity Total capacity 80 l
Of which reserve
fuel
On AMG vehicles Approx. 8 – 9 l
Approx. 14 l ! 
Do 
 not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Never mix
diesel with petrol. Even small amounts of Technical data
* optional
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Service products and capacities
317
Capacities The following values indicate the total cooling system capacities.
CLS 280
CLS 350
54 CLS 350 CGI
54 CLS 500 CLS 63 AMG CLS 320 CDI
Coolant 10.0 l 10.0 l 12.0 l 11.3 l 11.8 l 12.6 l
Amount of antifreeze/corrosion inhibitor required for antifreeze protection
Down to –37 °
C (approxi-
mately 50%) 5.0 l 5.0 l 6.0 l 5.7 l 5.9 l 6.3 l
Down to –45 °
C (approxi-
mately 55%) 5.5 l 5.5 l 6.6 l 6.2 l 6.5 l 6.9 l
Brake fluid
Over  a period of time, the brake fluid absorbs
moisture from the air; this lowers its boiling
point. G
Risk of accident
If the boiling point of the brake fluid is too
low, 
 vapour pockets may form in the brake
system when the brakes are applied hard
(e.g. when driving downhill). This would
impair braking efficiency. Have the brake fluid renewed every two
years with a brake fluid that has been
approved by Mercedes-Benz and have this
confirmed in the Service Booklet.
i There is usually a notice in the engine
compartment 
to remind you when the next
brake fluid change is due. Windscreen washer system
The washer fluid reservoir holds approxi-
mately 4.5 litres; on vehicles with the head-
lamp cleaning system* it holds 7 litres.
The headlamp cleaning system*
 and the
windscreen washer system are both supplied
from the washer fluid reservoir.
X At temperatures above freezing point:
54 Only for certain countries. Technical data
* optional
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