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 213 of 400

213 Controls in detail
Loading
If the backrest is not locked into position,
a red indicator6 will be visible.
Check for secure locking by pushing
and pulling on the backrest.
Loading instructions
The total load weight including vehicle oc-
cupants and luggage/cargo should not ex-
ceed the vehicle capacity weight indicated
on the certification tag which can be found
on the left door pillar.
Warning!
G
If a red indicator is visible with the backrest
up, then the backrest is not properly locked
into position.
Always lock backrest in its upright position
when rear seat bench is occupied, or the ex-
tended cargo compartment is not in use.
Check for secure locking by pushing and
pulling on the backrest.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown
around inside the vehicle, and cause injury
to vehicle occupants unless the items are
securely fastened in the vehicle.
To help avoid personal injury during a colli-
sion or sudden maneuver, exercise care
when transporting cargo.
Page 262 of 400

262 OperationTires and wheelsTire pressure changes by approx. 1.5 psi
(0.1 bar) per 18°F (10°C) of air tempera-
ture change. Keep this in mind when
checking tire pressure where the tempera-
ture is different from the outside tempera-
ture.
Tire temperature and tire pressure are also
increased while driving, depending on the
driving speed and the tire load.
Check the spare tire periodically for condi-
tion and inflation. Spare tires will age and
become worn over time even if never used,
and thus should be inspected and replaced
when necessary.
Rotating wheels
On vehicles with the same wheel size all
around, wheels can be rotated every 3 000
to 6 000 miles (5 000 to 10 000 km), or
sooner if necessary, according to the
degree of tire wear. The same direction of
tire rotation must be retained.Rotate the wheels before the characteris-
tic tire wear pattern becomes visible
(shoulder wear on front wheels and tread
center wear on rear wheels).
Thoroughly clean the inner side of the
wheels after each rotation. Check and
ensure proper tire inflation pressure.
Warning!
G
Follow recommended inflation pressures.
Do not overinflate tires. Overinflated tires
can result in sudden deflation (blowout)
because they are more likely to become
punctured or damaged by road debris,
potholes, etc.
Do not underinflate tires. Underinflated tires
wear unevenly, adversely affect handling
and fuel economy, and are more likely to fail
from being overheated.
Do not overload the tires by exceeding the
specified vehicle capacity weight (as indi-
cated by the label on the pillar in the driver’s
door opening). Overloading the tires can
overheat them, possibly causing a blowout.Warning!
G
Rotate front and rear wheels only if they are
of the same size.
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 322 of 400

322 Practical hintsFlat tire
Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.Lowering the vehicle
Lower vehicle by turning crank
counterclockwise until vehicle is
resting fully on its own weight.
Remove the jack.
1 - 5Wheel bolts
Tighten the five wheel bolts evenly,
following the diagonal sequence
illustrated (1to5), until all bolts are
tight. Observe a tightening torque
of 80 lb-ft (110 Nm).Before storing the jack, it should be fully
collapsed, with handle folded in (storage
position) (
page 301).
Store the jack and the other vehicle
tools in the storage compartment be-
hind the left trim panel (
page 301).
Store the wheel cover (Canada only)
and the damaged wheel in the cargo
compartment.
Warning!
G
Only use genuine equipment
Mercedes-Benz wheel bolts. Other wheel
bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle
could tip over.
Warning!
G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque
of 80 lb-ft (110 Nm).
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 345 of 400
345 Technical data
Weights
Weights
Roof load max.
220 lb (100 kg)
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
Page 390 of 400

390 IndexVehicle battery 324
Vehicle care 267
Cloth upholstery 272
Cup holder 271
Engine cleaning 269
Gear selector lever 271
Hard plastic trim items 271
Headlamps 269
Instrument cluster 270
Leather upholstery 271
Light alloy wheels 270
MB Tex upholstery 272
Ornamental moldings 269
Paintwork 268
Plastic and rubber parts 272
Power washer 268
Seat belts 271
Side markers 269
Steering wheel 271Tail lamps 269
Tar stains 268
Turn signals 269
Upholstery 271
Vehicle washing 269
Window cleaning 270
Wiper blades 270
Wood trims 272
Vehicle identification number (VIN) 338
Vehicle jack 301
Vehicle lighting
Checking 251
Vehicle tool kit 300
Alignment bolt 301
Spare fuses 301
Special fuse puller 301
Towing eye bolt 301
Vehicle jack 301
Wheel bolts 301
Wheel wrench 301Vehicle washing 269
Ventilated storage compartment 156
Ventilation
Storage compartment 156
VIN (Vehicle Identification Number) 361
VIN (vehicle identification number) 338
Viscosity
Engine oil 358
Voice control system*
Hands-free microphone 27
W
Warning sounds
Drivers seat belts 62
Parking brake 45
Warranty coverage 337
Washer fluid see Windshield washer fluid
Washing the vehicle 267
Wear pattern (tires) 262
Weights 345