1, 2, 3 ...
4ETS (Electronic Traction System)see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent all-wheel
drive)
Function/notes ............................ .169
12 V socket
see Sockets
360° camera
Cleaning ......................................... 283
Display in the multimedia system .. 183
Function/notes .............................1 81
A
ABS (Anti-lock Braking System)
Display message ............................ 213
Function/notes ................................ 64
Important safety notes .................... 64
Warning lamp ................................. 238
Accident
Automatic measures after an acci-
dent ................................................. 58
Activating media mode
General notes ................................ 250
Activating/deactivating cooling
with air dehumidification ................. 120
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 205
Display message ............................ 226
Function/information .................... 190
Active Driving Assistance package .. 190
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 205
Display message ............................ 226
Function/information .................... 193
Active multicontour seat
Adjusting (on the seat) ..................... 98
Active Parking Assist
Detecting parking spaces .............. 174
Display message ............................ 227
Exiting a parking space .................. 176
Function/notes ............................. 173
Important safety notes .................. 173 Parking .......................................... 175
ADAPTIVE BRAKE ................................. 72
Adaptive Brake Assist
Function/notes ................................ 68
Adaptive Damping System (ADS) ..... 167
Adaptive Highbeam Assist
Display message ............................ 221
Function/notes ............................. 109
Switching on/off ........................... 110
Additives (engine oil) ........................ 334
Address book
see also Digital Operator's Man-
ual .................................................. 245
Adjusting the volume
Audio 20 ........................................ 246
COMAND ....................................... 246
Air bags
Deployment ..................................... 53
Display message ............................ 219
Front air bag (driver, front
passenger) ....................................... 47
Important safety notes .................... 46
Introduction ..................................... 46
Knee bag .......................................... 47
Occupant Cla
ssification System
(OCS) ............................................... 49
PASSENGER AIR BAG OFF indica-
tor lamp ........................................... 42
Pelvis air bag ................................... 48
Side impact air bag .......................... 48
Window curtain air bag .................... 49
AIR FLOW ........................................... 121
Air vents
Glove box ....................................... 125
Important safety notes .................. 125
Setting ........................................... 125
Setting the side air vents ............... 125
Air-conditioning system
see Climate control
AIRMATIC
Display message ............................ 224
Function/notes ............................. 166
Alarm
ATA (Anti-Theft Alarm system) ......... 75
Switching off (ATA) .......................... 75
Switching the function on/off
(ATA) ................................................ 75
Index3
E
E10see Fuel
EASY-ENTRY feature
Activating/deactivating ................ .208
Function/notes .............................1 02
EASY-EXIT feature
Crash-responsive ........................... 103
Function/notes .............................1 02
Switching on/off ........................... 208
EASY-PACK trunk box ....................... 255
EBD (electronic brake force distri-
bution)
Display message ............................ 214
Function/notes ................................ 72
ECO display
Function/notes .............................1 49
On-board computer ....................... 199
ECO start/stop function
Automatic engine start .................. 131
Automatic engine switch-off .......... 130
Deactivating/activating ................. 131
General information ....................... 130
Important safety notes .................. 130
Introduction ................................... 130
Electronic Stability Program
see ESP
®(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 58
Emergency release
Driver's door ....................................8 3
Fuel filler flap ................................. 145
Trunk ............................................... 86
Vehicle ............................................. 83
Emergency spare wheel
General notes ................................ 326
Important safety notes .................. 326
Removing ....................................... 326
Storage location ............................ 326
Stowing .......................................... 327
Technical data ............................... 326
Emergency Tensioning Devices
Activation ......................................... 53
Emissions control
Service and warranty information .... 26 Engine
Check Engine warning lamp ........... 241
Display message ............................ 222
ECO start/stop function ................ 130
Engine number ............................... 331
Irregular running ............................ 133
Jump-starting ................................. 294
Starting problems .......................... 133
Starting the engine with the
SmartKey ....................................... 129
Starting with KEYLESS-GO ............. 129
Switching off .................................. 147
Tow-starting (vehicle) ..................... 299
E
ngine electronics
Problem (malfunction) ................... 133
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ........................................... 276
Additives ........................................ 334
Checking the oil level ..................... 275
Checking the oil level using the
dipstick .......................................... 275
Display message ............................ 223
Filling capacity ............................... 334
Notes about oil grades ................... 333
Notes on oil level/consumption .... 275
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 209
Entering an address
see also Digital Operator's Man-
ual .................................................. 245
ESP
®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 209
Characteristics ................................. 70
Deactivating/activating (button
in Mercedes-AMG vehicles) ............. 71
Deactivating/activating (except
Mercedes‑ AMG vehicles) ................. 70
Deactivating/activating (on-
board computer, except
Mercedes-AMG vehicles) ............... 204
Display message ............................ 213
Function/notes ................................ 69
General notes .................................. 69
Important safety information ........... 69
Trailer stabilization ........................... 72
Index9
Adding engine oil
GWARNING
Certain component sin th eengin ecompart-
ment, suc has th eengine, radiato rand part s
of th eexhaust system, can become ver yhot .
Working in th eengin ecompartmen tposes a
ris kof injury.
Wher epossible, let th eengin ecool down and
touch only th ecomponent sdescribed in th e
following.
GWARNIN G
If engin eoil comes int ocontact wit hhot com-
ponents in th eengin ecompartment, it may
ignite. There is aris kof fir eand injury.
Mak esur ethat engin eoil is no tspilled next to
th efiller neck .Let th eengin ecool down and
thoroughly clean th eengin eoil off th ecom-
ponents before starting th eengine.
HEnvironmenta lnot e
When addin goil, tak ecar eno tto spil lany. If
oil enters th esoil or waterways, it is harmful to
th eenvironment.
!Only use engin eoils and oil filters that hav e
been approve dfor vehicles wit h aservic esys-
tem. You can obtain alist of th eengin eoils
and oil filters tested and approve din accord -
anc ewit hth eMercedes-Benz Specification s
for Service Products at any Mercedes-Benz
Service center.
Damage to th eengin eor exhaust system is
caused by th efollowing:
Rusin gengin eoils and oil filters that hav eno t
been specifically approve dfor th eservic e
system
Rreplacing engin eoil and oil filters after th e
interval for replacemen tspecifie dby th e
servic esystem has been exceeded
Rusin gengin eoil additives.
!Do no tadd to omuc hoil. addin gto omuc h
engin eoil can result in damag eto th eengin e
or to th ecatalytic converter. Hav eexcess
engin eoil siphoned off .
Example
XTurn cap :counter-clockwise and remove it .
XAddengin eoil.
If th eoil level is at or belo wtheMIN mar kon
th eoil dipstick ,add 1. 1US qt (1.0l)of engine
oil.
XReplace cap :on the filler neck and turn
clockwise.
Ensure that the cap locks into place securely.
XCheck the oil level again with the oil dipstick
(Ypage 275).
Further information on engine oil (
Ypage 333).
Additional service products
Checking coolant level
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
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 a risk of injury.
Let the engine cool down before you open the
cap. Wear gloves and eye protection. Slowly
open the cap to relieve pressure.
276Engine compartment
Maintenance and care
RGasoline with metalliferous additives
RDiesel
Do not mix such fuels with the fuel recom-
mended for your vehicle.
!To ensure the longevity and full perform-
ance of the engine, only premium-grade
unleaded gasoline must be used.
If standard unleaded gasoline is unavailable
and you have to refuel with unleaded gasoline
of a lower grade, observe the following pre-
cautions:
ROnly fill the fuel tank to half full with regular
unleaded gasoline and fill the rest with pre-
mium-grade unleaded gasoline as soon as
possible.
RDo not drive at the maximum speed.
RAvoid sudden acceleration and engine
speeds over 3,000 rpm.
You will usually find information about the fuel
grade on the pump. If you cannot find the label
on the pump, ask the staff for assistance.
iFor further information, consult a qualified
specialist workshop or visit
http://www.mbusa.com (USA only).
As a temporary measure, if the recommended
fuel is not available, you may also use regular
unleaded gasoline with an octane rating of
87 AKI/91 RON. This may reduce engine per-
formance and increase fuel consumption. Avoid
driving at full throttle and sudden acceleration.
Never refuel using fuel with a lower AKI.
Information on refueling (
Ypage 144).
Additives
iIn some countries, the available gasoline
may not be sufficiently low in sulfur. This fuel
can temporarily produce unpleasant odors,
especially on short journeys. As soon as sul-
f
ur-free fuel (sulfur content <10 ppm) is used
for refueling, the odors are reduced.
Engine oil
General notes
!Never use engine oil or an oil filter of a spec-
ification other than is necessary to fulfill the
prescribed service intervals. Do not change
the engine oil or oil filter in order to achieve
longer replacement intervals than those pre-
scribed. You could otherwise cause engine
damage or damage to the exhaust gas after-
treatment.
Follow the instructions in the service interval display regarding the oil change. Otherwise,
you may damage the engine and the exhaust
gas aftertreatment.
When handling engine oil, observe the important
safety notes on service products (
Ypage 331).
The engine oils are matched to the performance
of Mercedes-Benz engines and service intervals.
You should therefore only use engine oils and oil
filters that are approved for vehicles with main- tenance systems.
For a list of approved engine oils and oil filters,
consult an authorized Mercedes-Benz Center.
Or visit the website
http://bevo.mercedes-benz.com.
The table shows which engine oils have been
approved for your vehicle.
ModelMB-Freigabe or MB-
Approval
All models229.5
Use only SAE 0W-40 or SAE 5W-40 engine oils
for Mercedes‑AMG vehicles.
iMB approval is indicated on the oil contain-
ers.
Service products and filling capacities333
Technical data
Z
Filling capacities
The followingvalue srefer to an oil chang e
includin gth eoil filter.
ModelCapacit y
CLS 400
CLS 400 4MATIC6.9US qt (6.5l)
CLS 550
CLS 550 4MATIC8.5 US qt (8.0 l)
Mercedes‑AMG
vehicles9.0 US qt (8.5l)
Additives
!Do not use any additives in the engine oil.
This could damage the engine.
Brake fluid
GWARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
Comply with the important safety notes for ser-
vice products when handling brake fluid
(
Ypage 331).
The brake fluid change intervals can be found in
the Maintenance Booklet.
Only use brake fluid approved by Mercedes-
Benz in accordance with MB-Freigabe or MB-
Approval 331.0.
Information about approved brake fluid can be
obtained at any qualified specialist workshop or on the Internet at
http://bevo.mercedes-benz.co m.
iHave the brake fluid regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.
Coolant
Important safety notes
GWARNING
If antifreeze comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Let the engine cool down before you add anti-
freeze. Make sure that antifreeze is not spilled
next to the filler neck. Thoroughly clean the
antifreeze from components before starting
the engine.
!Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be found
in the Mercedes-Benz Specifications for Ser-
vice Products, MB BeVo 310.1, e.g. on the
Internet at http://bevo.mercedes-benz.com.
Or contact a qualified specialist workshop.
!Always use a suitable coolant mixture, even
in countries where high temperatures prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
iHave the coolant regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.
Comply with the important safety precautions
for service products when handling coolant
(
Ypage 331).
The coolant is a mixture of water and anti-
freeze/corrosion inhibitor. It performs the fol-
lowing tasks:
Rcorrosion protection
Rantifreeze protection
Rraising the boiling point
If the coolant has antifreeze protection down to -35 ‡ (-37 †), the boiling point of the coolant
during operation is approximately 266 ‡
(130 †).
334Service products and filling capacities
Technical data