2006 MERCEDES-BENZ C350 wheel bolts

408 Practical hintsFlat tireThe jack take-up brackets are located
directly behind the front wheel housings
and in front of the rear wheel housings.
1Take-up bracket
2Jack
Place jack2 on firm ground.

Position jack2 under take-up
bracket1 so that it is always vertical
(plumb-line) as seen from the side,
even if the vehicle is parked on an
incline.

Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the
ground. Never start engine while
vehicle is raised.Removing the wheel
1Alignment bolt

Unscrew upper-most wheel bolt and
remove.

Replace this wheel bolt with alignment
bolt1 supplied in the tool kit.

Remove the remaining bolts.

Remove the wheel.
Warning!
G
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle.

Never start the engine when the vehicle
is raised.


Never lie down under the raised vehicle.
!Do not place wheel bolts in sand or dirt.
This could result in damage to the bolts
and wheel hub threads.

409 Practical hints
Flat tire
Mounting the spare wheel
1Wheel bolt for light alloy rims
2Wheel bolt for Minispare wheel (locat-
ed in trunk with spare wheel)
Clean contact surfaces of wheel and
wheel hub.

Guide spare wheel onto the alignment
bolt and push it on.

Insert wheel bolts and tighten them
slightly.
!Wheel bolts2 must be used when
mounting the Minispare wheel or other
steel rims. The use of any wheel bolts
other than wheel bolts2 for the
Minispare wheel will physically damage
the vehicle’s brakes.
!To avoid paint damage, place wheel flat
against hub and hold it there while
installing first wheel bolt.Warning!
G
Always replace wheel bolts that are
damaged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact
an authorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to
come off. This could cause an accident.
Make sure to use the correct wheel bolts.

410 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 385).

Store the jack and the other vehicle
tools in the trunk.
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 fall off the jack.
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).

454 Technical termsTelematics*
A combination of the terms “tele-
communications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
TIN
(T
ire I
dentification N
umber)
(
page 333)
Tire load rating
(page 333)Tire ply composition and material used
(
page 333)
Tire speed rating
(page 333)
Traction
(page 334)
Tread
(page 334)
Treadwear indicators
(page 334)Uniform Tire Quality Grading Standards
(
page 334)
Vehicle capacity weight
(page 334)
Vehicle maximum load on the tire
(page 334)
VIN
(Vehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.

456 Index
Operating and display elements 200
Operating audio system 202
Operating safety 199
Radio operation 207
Telephone* operation 225
Auto-dimming mirror* 171
Automatic central locking
Activating/deactivating
(Control system) 152
Automatic climate control*
(Canada only) 186
Control panel 187
Defrosting, front 191
Rear window defroster 175
Automatic headlamp mode 119
Automatic locking when driving 107
Automatic shift program
Program mode selector switch
(Automatic transmission*) 167
Automatic time change (Standard time,
Daylight Saving time) 147Automatic transmission* 162
Accelerator position 165
Automatic shift program 167
Emergency operation
(Limp Home Mode) 169
Fluid level (ATF) 300
Gear ranges 166
Gear selector lever 162
Gear shifting malfunctions 169
Kickdown 165
Manual shifting 168
One-touch gearshifting 168
Program mode selector switch 167
Starting engine 49
B
Backrest
Driver’s multicontour seat*
(Canada only) 113
Rear seat, folding 254
Seat, manual 36
Seat, power* 38Backup lamps
Messages in display 377
Replacing bulbs 399
Bar 331
BAS 88, 449
Batteries, SmartKey
Changing 396
Checking battery condition 101
Battery, Vehicle 302, 412
Charging 414
Disconnecting and connecting 413
Jump starting 415
Removing and installing 413
Bead 331
Bi-Xenon* headlamps see headlamps
Block heater (Canada only) 337
Bolts, Spare wheel 388
Brake Assist System see BAS
Brake fluid 442
Checking 295
Message in display 370

469 Index
Sidewall 333
Ski sack* (Canada only) 250, 252, 253
SmartKey see Key, SmartKey
Snow chains 337
Sound system* 204
Spare fuses 421
Spare wheel 436
Bolts 388
Mounting 406
Speed settings
Cruise control 249
Speedometer 25, 143
Split rear bench seat* 253
SRS 70, 453
Indicator lamp 25, 355
Message in display 363
Standing lamps
Replacing bulbs 398, 399
Standing water, Driving through 290
Starter switch 23, 33
Positions 33
Starting difficulties, Engine 50
Steering column 40, 41
Easy entry/exit feature* 42
Steering gear oil
Message in display 381Steering wheel 40
Buttons 26
Cleaning 347
Electrical adjustment* 41
Manual adjustment 40
Stolen vehicle
Recovery services 273
Storage compartments
Armrest 258
Cup holder 259
Glove box 257
Parcel net in front passenger
footwell 258
Storing (memory function*)
Positions into memory 116
Storing tires 306
Submenus see Control system submenus
Substitute lamps
Bulbs 397
Summer opening feature 243
Sun visors 173
Sunshade* 174
Supplemental Restraint System see SRS
Symbols used in this operator’s
manual 15T
Tachometer 25, 129
Overspeed range 129
Tail lamps
Cleaning 344
Messages in display 379
Replacing bulbs 399, 403
Tar stains 342
Technical data
Air conditioning refrigerant 442
Brake fluid 442
Coolant 440, 441, 444
Electrical system 437
Engine 430
Engine oil additives 442
Engine oils 442
Fuel requirements 444
Fuels 440, 441
Fuels, coolants, lubricants, etc 440
Gasoline additives 443
Lubricants 440
Premium unleaded gasoline 443
Rims and tires 432
Weights 439

470 Index
Windshield washer 441
Windshield washer and headlamp
cleaning* system 441, 448
Tele Aid* 265, 271, 453
Emergency calls 267
Hands-free microphone 29
Information 270
Initiating an emergency call
manually 268
Message in display 382
Remote door unlock 272
Roadside Assistance 268
SOS button 268
Stolen Vehicle Recovery
services 273
System self-check 266
Telematics* 454
Telephone* 26, 264
Answering/ending a call 158
Hands-free microphone 29
Message in display 382
Operation 157, 225
Phone book 158
Redialing 159Temperature
Display mode 135
Interior temperature 180
Temperature,Tires 315
Tether attachment points, see
Children in the vehicle
Tie-down rings*, Trunk 256
Tightening torque, Wheel bolts 410, 454
Tilt/sliding sunroof* see Power tilt/sliding
sunroof*
Time 145
TIN 333
Tire and Loading Information
Placard 308
Tire and loading Information
Terminology 331
Tires 304, 432
Air pressure 331
Care and maintenance 305
Chains 337
Cleaning 306, 342
Direction of rotation 307
Driving instructions 286
Important notes, Tire inflation
pressure 315
Inflation pressure 296, 314, 316Information Placard 308
Inspection 305
Load rating 333
MOExtended system*
(Canada only) 320, 411
Ply composition and material
used 333
Problems under-/overinflation 319
Retreads 304
Rims and tires 432
Rotating 335
Run Flat Indicator*
(Canada only) 317
Service life 305
Sizes 432
Speed rating 288, 323, 333
Temperature 315, 330
Terminology 331
Tire Identification Number see TIN
Traction 287
Tread 334
Tread depth 306, 336
Treadwear indicators 334
Vehicle maximum load on 334
Wear pattern 335
Winter 336

472 IndexVehicle tool kit 383
VIN 428, 454
Voice control system*,
Hands-free microphone 29
see separate operating instructions
W
Warning lamps see Lamps, indicator and
warning
Warning sounds
Driver’s or passenger’s seat belt 71
Parking brake 51
Seat belt telltale 355
Warranty coverage 10, 427
Washer fluid see Windshield washer fluid
Washer reservoir level 296
Washing the vehicle 341
Wear pattern (tires) 335
Weights, Vehicle 439
Wheel
Bolts 388
Change 410
Removing 408
Spare 384, 386, 436
Tightening torque 410Wheels, Tires 304
Window curtain air bags 68
Windows see Power windows
Windshield
Cleaning 345
Defogging 181, 192
Replacing wiper blades 405
Washer fluid 303, 448
Washer system 448
Windshield washer fluid 448
Message in display 382
Mixing ratio 448
Refilling 303
Wiping with 55
Windshield washer system 448
Windshield wipers 53
Cleaning 345
Replacing wiper blades 405
Winter driving 336
Block heater (Canada only) 337
Snow chains 337
Tires 336
Winter driving instructions 289
Winter tires 336Wiper blades
Cleaning 345
Replacing 405
Wood trims, Cleaning 348
X
Xenon headlamps* see Headlamps