Page 290 of 481

289 Operation
Engine compartment
For more information on messages in the
multifunction display concerning engine
oil, see the “Practical hints” section
(page 377).
Adding engine oil
CLS 550
CLS 63 AMG
Unscrew filler cap1 from filler neck.
Add engine oil as required. Be careful
not to overfill with oil.Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.
Screw filler cap1 back on filler neck.
For more information on engine oil, see the
“Technical data” section (
page 449) and
(
page 451).
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Center
check the transmission.
!
Only use approved engine oils and oil filters
required for vehicles with Maintenance System
(U.S. vehicles) or FSS PLUS (Canada vehicles).
For a listing of approved engine oils and oil fil-
ters, refer to the Factory Approved Service Prod-
ucts pamphlet (USA only) in your vehicle
literature portfolio, or contact an authorized
Mercedes-Benz Center.
Using engine oils and oil filters of specification
other than those expressly required for the Main-
tenance System (U.S. vehicles) or FSS PLUS
(Canada vehicles), or changing of oil and oil filter
at change intervals longer than those called for
by the Maintenance System (U.S. vehicles) or
FSS PLUS (Canada vehicles) will result in engine
or emission control system damage not covered
by the Mercedes-Benz Limited Warranty.
!
Excess oil must be siphoned or drained off.
It could cause damage to the engine and emis-
sion control system not covered by the
Mercedes-Benz Limited Warranty.
Page 450 of 481

449 Technical data
Fuels, coolants, lubricants etc.
Fuels, coolants, lubricants etc.
Capacities
Vehicle components and their respective
lubricants must match. Therefore only use
products tested and approved by
Mercedes-Benz.
Please refer to the Factory Approved
Service Products pamphlet (USA only), or
inquire at an authorized Mercedes-Benz
Center.
Warning!
G
Comply with all valid regulations with re-
spect to handling, storing and disposing of
service fluids. Otherwise you could endan-
ger persons or the environment.
Keep service fluids out of the reach of chil-
dren.
For health reasons, you should prevent ser-
vice fluids from coming into direct contact
with your skin or clothing.
If a service fluid is swallowed, contact a phy-
sician immediately.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
CLS 550
9.0 US qt (8.5 l)
Approved engine oils
Engine with oil filter including
oil cooler
CLS 63 AMG
9.3 US qt (8.8 l)
Approved engine oils
Automatic transmission
CLS 550
9.7 US qt (9.2 l)
MB Automatic Transmission Fluid
CLS 63 AMG
9.0 US qt (8.5 l)
Rear axle
CLS 550
1.37 US qt (1.3 l)
Hypoid gear oil SAE 85 W 90
CLS 63 AMG
1.27 US qt (1.2 l)
Page 452 of 481

451 Technical data
Fuels, coolants, lubricants etc.
Engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for
our service intervals. Therefore, only use
approved engine oils and oil filters re-
quired for vehicles with Maintenance Sys-
tem (U.S. vehicles) or FSS PLUS (Canada
vehicles). For a listing of approved engine
oils and oil filters, refer to the Factory Ap-
proved Service Products pamphlet (USA
only), or contact an authorized
Mercedes-Benz Center.
Engine oil additivesAir conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air condition-
ing system.
Brake fluid
Only brake fluid approved by
Mercedes-Benz is recommended. Your
authorized Mercedes-Benz Center will pro-
vide you with additional information.
!
Using engine oils and oil filters of specifica-
tion other than those expressly required for the
Maintenance System (U.S. vehicles) or
FSS PLUS (Canada vehicles), or changing of oil
and oil filter at change intervals longer than
those called for by the Maintenance System
(U.S. vehicles) or FSS PLUS (Canada vehicles)
will result in engine or emission control system
damage not covered by the Mercedes-Benz Lim-
ited Warranty.Please follow Maintenance System (U.S. vehi-
cles) or FSS PLUS (Canada vehicles) recommen-
dations for scheduled oil changes. Failure to do
so could result in engine or emission control sys-
tem damage not covered by the Mercedes-Benz
Limited Warranty.
!
Do not blend oil additives with engine oil.
They may damage the engine.
Damage or malfunctions resulting from blending
oil additives are not covered by the
Mercedes-Benz Limited Warranty.
!
Never use R-12 (CFC) or mineral-based lu-
bricating oil. Otherwise damage to the system
will occur.
Warning!
G
During vehicle operation, the boiling point of
the brake fluid is continuously reduced
through the absorption of moisture from the
atmosphere. Under extremely strenuous op-
erating conditions, this moisture content
can lead to the formation of bubbles in the
system, thus reducing the system’s efficien-
cy.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s Mainte-
nance Booklet for replacement interval.
Page 463 of 481

462 IndexEmergency Tensioning Device see ETD
Emergency, In case of
Batteries, Jump starting 423
First aid kit 391
Flat tire, changing 412
Fuses 428
Hazard warning flasher 134
Instrument cluster, indicator
lamps 342
Roadside Assistance 12
Towing the vehicle 342
Emission control 281
Information label 435
System warranties 10
Vacuum line routing diagram
label 435
Engine 437
Belt layout 436
Block heater* (Canada only) 328
Break-in recommendations 270
Cleaning 334
Compartment 286
Malfunction indicator lamp 345, 346,
373Maximum engine speed 437
Number 434, 435
Starting 51
Starting with KEYLESS-GO* 52
Tachometer 27
Technical data 437
Turning off with KEYLESS-GO* 61
Turning off with the SmartKey 61
Engine compartment
Hood 286
Engine coolant see Coolant 290
Engine oil 287, 449
Adding 289
Additives 451
Changing 451
Checking level 288
Consumption 287
Filler neck 289
Messages in display 377
Oil dipstick 288
Recommended engine oils and oil
filters 451ESP
®
94
Messages in display 358, 372
Warning lamp 343
ETD
Safety guidelines 68
Exterior lamp switch 128
Exterior rear view mirrors 47
Parking position 166, 187
Exterior view 22
F
Factory settings
Resetting 155
SmartKey with KEYLESS-GO* 108
Filler neck, Engine oil 289
First aid kit 391
Flat tire 412
Collapsible tire 415, 416
Jacking up the vehicle 414
Lowering the vehicle 418
Mounting the spare wheel 412, 415
Preparing the vehicle 412
Spare wheel 412