Page 264 of 418

263 Operation
Engine compartment
Other display messages
If the SmartKey or KEYLESS-GO start/stop
button* is not in position 2, the following
message will appear:FOR ENGINE OIL LEVEL
IGNITION ON!
Switch on ignition.
If you see the message:
PERF. SERV ON TIME
If engine is at normal operating
temperature, wait five minutes before
repeating check procedure.
If engine is not yet at normal operating
temperature, wait 30 minutes before
repeating check procedure.If you see the message:
ENGINE OIL LEVEL
NOT WHEN ENGINE ON!
Turn off the engine.
If the engine is at normal operating
temperature, wait five minutes before
checking oil.
If the engine is not yet at normal oper-
ating temperature, you must wait
30 minutes before checking oil.
If there is excess engine oil with the engine
at normal operating temperature, the fol-
lowing message will appear:
ENGINE OIL LEVEL
REDUCE OIL LEVEL
Have excess oil siphoned or drained
off. Contact an authorized
Mercedes-Benz Center.For more information on messages in the
display concerning engine oil, see the
“Practical hints” section (
page 310).
!Excess oil must be siphoned or drained
off. It could cause damage to the en-
gine and catalytic converter not cov-
ered by the Mercedes-Benz Limited
Warranty.iPerform the engine oil level check with
the dipstick (CL 500, and CL 55 AMG
only) if it cannot be completed with the
control system .
In this case we recommend that you
have the system checked at a
Mercedes-Benz Center.
Page 265 of 418

264OperationEngine compartmentChecking the engine oil level with the
oil dipstick (CL 500, CL 55 AMG only)
When checking the oil level the vehicle
must
be parked on level ground
be at normal operating temperature
have been stationary for at least five
minutes with the engine turned off
To check the engine oil level with the oil
dipstick, do the following:
Open the hood (
page 260).
Pull out oil dipstick1 (
page 265).
Wipe oil dipstick1 clean.
Fully insert oil dipstick1 into the dip-
stick guide tube.
Pull out oil dipstick1 again after ap-
proximately three seconds to obtain
accurate reading.
Oil dipstickThe oil level is correct when it is between
the lower (min) and upper (max) mark of
the oil dipstick.
If necessary, add engine oil.
For adding engine oil see (
page 265).
For more information on engine oil, see the
“Technical data” section (
page 372) and
(
page 374).
For more information on messages in the
display concerning engine oil, see the
“Practical hints” section (
page 310)
iThe engine oil level can be checked by
either the oil dipstick or via the multi-
function display in the instrument clus-
ter (
page 262). The amount of engine
oil needed is shown more precisely in
the multifunction display.
iThe filling quantity between upper and
lower oil dipstick marking level is ap-
proximately 2.1 US qt (2.0 l).
Page 266 of 418

265 Operation
Engine compartment
Adding engine oil
CL 500, CL 55 AMG1Oil dipstick
2Filler cap
Unscrew filler cap2 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 cap2 back on filler neck.
CL 6001Filler cap
Unscrew filler cap 1 from filler neck.
Add engine oil as required. Be careful
not to overfill with oil.
!Only use approved engine oils. For a
listing of approved engine oils, refer to
the Factory Approved Service Products
pamphlet in your vehicle literature port-
folio.
In addition, check the oil filler cap for
important information pertaining to the
engine oil needing to meet a specific
Mercedes-Benz specification
(e.g. MB 229.5). If such information is
printed on the oil filler cap, only use an
engine oil from the list of approved en-
gine oils in the Factory Approved Ser-
vice Products pamphlet that meets the
specification indicated on the oil filler
cap.
Using engine oils of other specification
may cause the FSS to incorrectly deter-
mine the next service interval and will
result in engine damage not covered by
the Mercedes-Benz Limited Warranty.
!Excess oil must be siphoned or drained
off. It could cause damage to the en-
gine and catalytic converter not cov-
ered by the Mercedes-Benz Limited
Warranty.
Page 404 of 418

403 Index
O
Occupant safety 60
Airbags 61
Children and airbags 62
Children in the vehicle 69
Fastening the seat belt 42
Infant and child restraint systems 69
LATCH child seat mounts 74
Seat belts 42, 64
Odometer, main 23
Odometer, trip 23
Oil
Adding 265
Consumption 261
Dipstick 261
Filler neck 265
Viscosity 384
Oil level
Checking 259
Oil level via control system
Checking 262
One-touch gearshifting 158
Canceling gear range limit 158
Downshifting 158
Upshifting 158Opening
Ashtray 227
Cup holder 226
Doors from the inside 96
Fuel filler flap 257
Fuel filler flap manually 334
Glove box 221
Hood 260
Power window with SmartKey 188
Side windows 187
Sliding/pop-up roof 191, 335
In an emergency 335
With SmartKey 193
Storage compartment in the center
console 223
Storage compartments in the
armrest 223
Trunk 96
Trunk from the inside 97
Trunk lid with SmartKey 90
Windows 186, 187
Operating
Cassette player 136
CD player 136COMAND see separate operating in-
structions
Garage door opener 243
Integrated remote control 243
Navigation system 141
Radio 135
Radio transmitters 254
Telephone* 139
Vehicle outside the USA and
Canada 13
Operator’s Manual 10
Ornamental moldings 286
Outside temperature indicator 128
Overdue service 282
Overhead control panel 27
Overspeed range 386
P
Paintwork 285
Panic alarm 76
Panic button on SmartKey 76
Parcel net in front passenger
footwell 226
Parcel net in trunk 226
Parking 53, 249