Page 8 of 400

ContentsTechnical data.................................. 335
Spare parts service ............................ 336
Warranty coverage ............................. 337
Loss of Service and Warranty
Information Booklet...................... 337
Identification labels............................ 338
Layout of poly-V-belt drive ................. 339
C 240/C 320 (all models) ............ 339
Engine ................................................ 340
Rims and Tires ................................... 341
Same size tires ............................. 342
Minispare wheel ........................... 342
Electrical system................................ 343
Main Dimensions ............................... 344
Weights .............................................. 345Fuels, coolants, lubricants, etc. ......... 346
Capacities .................................... 346
Engine oils.................................... 348
Engine oil additives ...................... 348
Air conditioning refrigerant .......... 348
Brake fluid .................................... 348
Premium unleaded gasoline ......... 349
Fuel requirements ........................ 349
Gasoline additives ........................ 350
Flexible Fuel Vehicles ................... 350
Coolants....................................... 352
Windshield washer and headlamp
cleaning* system ......................... 354
Consumer information ....................... 355
Uniform tire quality grading ......... 355
Technical terms............................... 357Index................................................. 363
Page 303 of 400

303 Practical hints
Where will I find ...?
Place storage well casing2 over the
luggage bowl5 and turn retaining
screw1 clockwise as far as it will go
to secure the Minispare wheel.In the case of a flat tire, you may
temporarily use the Minispare wheel when
observing the following restrictions:
Do not exceed a vehicle speed of
50 mph (80 km/h).
Drive to the nearest tire repair facility
to have the flat tire repaired or
replaced as appropriate.
Do not operate vehicle with more than
one Minispare wheel mounted.
For more information, see “Rims and Tires”
(
page 341).
iArrow3 on luggage bowl5 must
point in the direction of travel. Other-
wise you cannot place the storage well
casing2 on top and secure the
Minispare wheel with the retaining
screw1.
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 318 of 400

318 Practical hintsFlat tire
Flat tirePreparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.
Turn on the hazard warning flashers.
Engage the steering wheel lock in the
straight ahead position and set the
parking brake.
Move the gear selector lever toP.
Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the Minispare wheel
In the case of a flat tire, you may
temporarily use the Minispare wheel when
observing the following restrictions:
Do not exceed vehicle speed of 50 mph
(80 km/h).
Drive to the nearest tire repair facility
to have the flat tire repaired or
replaced as appropriate.
Do not operate vehicle with more than
one spare wheel mounted.Preparing the vehicle
Prepare the vehicle as described on
(
page 318).
Take the wheel wrench, jack and wheel
bolts out of the storage compartment
behind the left trim panel
(page 300).
Take the Minispare wheel out of the
storage compartment underneath the
cargo compartment floor
(page 302).
Lifting the vehicle
Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
(not included) or other sizable objects.
When changing wheel on a level surface:
Place one chock in front of and one
behind the wheel that is diagonally
opposite to the wheel being changed.
When changing wheel on a hill:
Place chocks on the downhill side
blocking both wheels of the other axle.
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 spare wheel should only be used
temporarily, and replaced with a regular
road wheel as quick as possible.
Page 335 of 400
335 Technical data
Spare 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 344 of 400
344 Technical dataMain Dimensions
Main DimensionsModel
C240
C320
C 240 4MATIC
C 320 4MATIC
Overall vehicle length
178.9 in (4 543 mm)
178.9 in (4 543 mm)
Overall vehicle width
68.0 in (1 728 mm)
68.0 in (1 728 mm)
Overall vehicle height
57.8 in (1 468 mm)
57.6 in (1 462 mm)
Wheelbase
106.9 in (2 715 mm)
106.9 in (2 715 mm)
Track, front
58.8 in (1 493 mm)
58.8 in (1 493 mm)
Track, rear
57.6 in (1 464 mm)
57.6 in (1 464 mm)
Page 377 of 400

377 Index
Lock button
Doors 359
Locking 51, 84
Automatic while driving 88
Centrally from inside 89
Fuel filler flap 249
Global, SmartKey 85
Vehicle in an emergency 306
Loss of keys 86
Loss of Service and
Warranty Information Booklet 337
Low beam headlamps
Messages in display 295
Replacing bulbs 310, 312
Lowering
Vehicle 322
Lubricants
Technical data 346
Luggage cover 210
Retractable 210M
Main dimensions 344
Maintenance 12, 265
Vehicles with E85 fuel 351
Malfunction
Displaying 120
Malfunction memory 120
Calling up 120
Clearing 120
Manual headlamp mode 101
Manual operations
Fuel filler flap 308
Interior lighting control 105
Locking the vehicle 306
Sliding/pop-up roof 309
Unlocking the driver’s door 305
Unlocking transmission
gear selector lever 308Manual seat
Adjusting 33
Adjusting backrest tilt 33
Adjusting head restraint height 34
Adjusting head restraint tilt 34
Adjusting seat cushion tilt 33
Adjusting seat height 33
Front seat head restraints 91
Seat fore and aft adjustment 33
MAXCOOL Maximum cooling 163
MB Tex upholstery
Cleaning 272
Mechanical key 305
Memory function 97
Recalling positions from memory 98
Storing exterior rear view mirror
parking position 99
Storing key dependent settings 98
Menu
Control system 359
Page 387 of 400

387 Index
Hazard warning flasher 104
Headlamps 46
High beams 104
Rapid seat heating* 96
Rear fog lamp 103
Seat heating* 96
Windshield wipers 47
Synchronizing
ESP 282
Power windows 198
Sliding/pop-up roof* 201
T
Tachometer 23, 109
Displaying gear range 141
Overspeed range 109
Tail lamps
Cleaning 269
Replacing bulbs 311, 315
Tailgate
Closing 88
Opening 87Tar stains 268
Technical data
Air conditioning refrigerant 348
Brake fluid 348
Coolant 346
Coolants 352
Electrical system 343
Engine 340
Engine oil 348
Engine oil additives 348
Flexible fuel vehicles 350
Fuel requirements 349
Fuels 346
Gasoline additives 350
Lubricants 346
Main dimensions 344
Premium unleaded gasoline 349
Rims and tires 341
Weights 345
Windshield and headlamp
washer system 347, 354
Windshield washer 347Tele Aid* 222
Emergency calls 224
Information 227
Initiating an emergency call
manually 225
Messages in display 299
Remote door unlock 229
Roadside assistance 226
Stolen vehicle tracking services 230
System self-check 223
Tele Aid* System 222
Upgrade signals 228
Tele Aid* System 361
Telematics* 361
Telephone* 24, 221
Answering a call 137
Dialing a number
from the phone book 138
Emergency call 194
Ending a call 137
Hands-free microphone 27
Loading phone book* 138