Page 10 of 426

ContentsTechnical data.................................. 361
Parts service ...................................... 362
Warranty coverage ............................. 363
Loss of Service and Warranty
Information Booklet...................... 363
Identification labels............................ 364
Layout of poly-V-belt drive ................. 365
C 240 (all models) ........................ 365
Engine ................................................ 366
Rims and Tires ................................... 367
Same size tires ............................. 368
Minispare wheel ........................... 369
Electrical system................................ 370
Main Dimensions ............................... 371
Weights .............................................. 372Fuels, coolants, lubricants, etc. ......... 373
Capacities .................................... 373
Engine oils.................................... 375
Engine oil additives ...................... 375
Air conditioning refrigerant .......... 375
Brake fluid .................................... 375
Premium unleaded gasoline ......... 376
Fuel requirements ........................ 376
Gasoline additives ........................ 377
Flexible Fuel Vehicles ................... 377
Coolants....................................... 379
Windshield washer and
headlamp cleaning system* ......... 381
Consumer information ....................... 382
Uniform tire quality grading ......... 382
Technical terms............................... 385Index................................................. 391
Page 283 of 426

281 Operation
Tires and wheels
Rotating tires
Tire rotation can be performed on vehicles
with tires of the same dimension all
around. If your vehicle is equipped with
tires of the same dimension all around,
tires can be rotated, observing a a
front-to-rear rotation pattern that will
maintain the intended rotation (spinning)
direction of the tire (
page 279).
In some cases, such as when your vehicle
is equipped with mixed-size tires (different
tire dimension front vs. rear), tire rotation
is not possible.If applicable to your vehicle's tire configu-
ration, tires can be rotated according to
the tire manufacturer's recommended in-
tervals in the tire manufacturer's warranty
pamphlet located in your vehicle literature
portfolio. If none is available, tires should
be rotated every 3 000 to 6 000 miles
(5 000 to 10 000 km), or sooner if neces-
sary, according to the degree of tire wear.
The same rotation (spinning) direction
must be maintained (
page 279).
Rotate tires before the characteristic tire
wear pattern becomes visible (shoulder
wear on front tires and tread center wear
on rear tires).
Thoroughly clean the mounting face of
wheels and brake disks, i.e. the inner side
of the wheels/tires, during each rotation.
Check for and ensure proper tire inflation
pressure.For information on wheel change, see the
“Practical hints” section (
page 321) and
(
page 342).
Warning!
G
Rotate front and rear wheels only if the tires
are of the same dimension.
If your vehicle is equipped with mixed-size
tires (different tire dimensions front vs.
rear), tire rotation is not possible.
Warning!
G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
80 lb-ft (110 Nm).
Only use genuine Mercedes-Benz wheel
bolts specified for your vehicle's rims.
Page 326 of 426
324 Practical hintsWhere will I find ...?Minispare wheel
The Minispare wheel is located in the
storage compartment underneath the
cargo compartment floor.
Removing the Minispare wheel
Lift up cargo compartment floor cover.
1Storage box
Remove storage box1.2Retaining screw
3Minispare wheel
Loosen retaining screw2 by turning it
counterclockwise.
Remove Minispare wheel3.Storing the Minispare wheel
Store Minispare wheel3 in the
storage compartment underneath the
cargo compartment floor.
Fasten retaining screw2 by turning it
clockwise.
Reinstall storage box1.Warning!
G
The dimensions of the Minispare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a Minispare wheel
mounted.
The Minispare wheel should only be used
temporarily, and should be replaced with a
regular road wheel as quickly as possible.
Page 344 of 426

342 Practical hintsFlat tire
Preparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.
Turn on the hazard warning flasher
(page 113).
Turn the steering wheel so that the
front wheels are in the straight ahead
position.
Set the parking brake (
page 55).
Move the gear selector lever toP.
Turn off the engine (
page 57).
Remove the SmartKey from the starter
switch.
Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the Minispare wheel
Preparing the vehicle
Prepare the vehicle as described on
(page 342).
Take the wheel wrench, the wheel
bolts, and the jack out of the storage
compartment behind the left trim panel
(page 321).
Take the Minispare wheel out of the
storage compartment underneath the
cargo compartment floor
(page 324).
Warning!
G
The dimensions of the Minispare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a Minispare wheel
mounted. Adapt your driving style accord-
ingly.
The Minispare wheel is for temporary use
only. When driving with spare wheel
mounted, ensure proper tire pressure and
do not exceed a vehicle speed of 50 mph
(80 km/h).
Drive to the nearest Mercedes-Benz Center
as soon as possible to have the Minispare
wheel replaced with a regular road wheel.
Never operate the vehicle with more than
one Minispare wheel mounted.
iOpen door only when conditions are
safe to do so.
Page 363 of 426
361 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and Tires
Electrical system
Main Dimensions
Weights
Fuels, coolants, lubricants, etc.
Consumer information
Page 373 of 426
371 Technical data
Main Dimensions
Main Dimensions
Model
C 240 (all models)
Overall vehicle length
179.0 in (4 546 mm)
Overall vehicle width
68.0 in (1 728 mm)
Overall vehicle height
57.8 in (1 467 mm)
Wheelbase
106.9 in (2 715 mm)
Track, front
59.3 in (1 505 mm)
Track, rear
58.1 in (1 476 mm)
Page 408 of 426

406 IndexLoading 226
Cargo tie-down rings 233
Instructions 232
Roof rack* 226
Split rear bench seat 230
Locator lighting 111
Setting 141
Lock button 387
Locking 55, 90
Automatic while driving 95
Centrally from inside 96
Fuel filler flap 267
Global, SmartKey 91
Glove box 234
Vehicle in an emergency 327
Loss of keys 93
Loss of Service and Warranty
Information Booklet 363
Low beam headlamps
Indicator lamp 25
Messages in display 316–317
Replacing bulbs 333, 335
Switching on 49Lowering
Vehicle 346
Lubricants
Technical data 373
Luggage cover 229
Retractable 229
M
Main dimensions 371
Main fuse box
In passenger compartment 357
Mainodometer 119
Maintenance 12, 284
Vehicles with E85 fuel 378
Maintenance service
Calling up the maintenance
service indicator 285
Major service (Service B) 284
Minor service (Service A) 284
Overdue 285
Types 285
When due 284Maintenance service indicator 284
Calling up 285, 286
Clearing 285, 286
Maintenance System
(U.S. vehicles) 284, 387
Manual headlamp mode 109
Manual operations
Fuel filler flap 328
Interior lighting control 114
Locking the vehicle 327
Tilt/sliding sunroof* 329
Unlocking the driver’s door 326
Unlocking the tailgate 326
Unlocking transmission
gear selector lever 328
Manual seat
Adjusting 36
Adjusting backrest tilt 36
Adjusting head restraint height 37
Adjusting head restraint tilt 37
Adjusting seat cushion tilt 36
Adjusting seat height 36
Front seat head restraints 99
Seat fore and aft adjustment 36
Page 419 of 426

417 Index
Fuel requirements 376
Fuels 373, 374
Gasoline additives 377
Lubricants 373
Main dimensions 371
Premium unleaded gasoline 376
Rims and tires 367
Weights 372
Windshield washer 374
Windshield washer and headlamp
cleaning* system 374, 381
Tele Aid* 242
Emergency calls 243
Hands-free microphone 29
Information 246
Initiating an emergency
call manually 244
Message in display 320
Remote door unlock 248
Roadside Assistance 245SOS button 244
Stolen Vehicle Recovery
services 249
System self-check 243
Tele Aid System 242, 389
Upgrade scenario 247
Telematics* 389
Telephone* 26, 241
Answering a call 149
Dialing a number from
the phone book 150
Ending a call 150
Hands-free microphone 29
Loading phone book 150
Message in display 320
Operation 148, 200
Redialing 151
Temperature
Display mode 133
Grades of tires 383
Setting interior temperature 169
Setting units in display 133
Tires 280Tie-down rings
(Cargo compartment) 233
Tightening torque
(Wheel bolts) 346, 389
Tilt
Head restraint, manual seat 37
Head restraint, power seat* 39
Tilt/sliding sunroof*
Closing 219, 329
Closing with SmartKey 221
Messages in display 320
Opening 219, 329
Opening with SmartKey 221
Stopping 221
Synchronizing 222
Time
Setting hours 135
Setting minutes 136
Time display
Setting 137
Time synchronization*
With head unit 135