2008 MERCEDES-BENZ CLK350 fuel pressure

419 Practical hints
What to do if …?
Display symbolDisplay messagesPossible cause/consequencePossible solution
HPlease correct
the tire pressure.The tire pressure is too low in one
or more tires.Check and correct tire inflation pressure as
required (
page 344).
Tire Pressure
Caution
Tire DefectOne or more tires are deflating.Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
If necessary, change the wheel (page 452).
Tire Pressure
Check TiresThe tire pressure in one or more
tires is already below the mini-
mum value.Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Check and adjust tire pressure as required
(
page 344).
If necessary, change the wheel (page 452).
Warning!G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
Warning!G
Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adverse-
ly affect handling and fuel economy, and are
more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires
can adversely affect handling and ride com-
fort, wear unevenly, increase stopping dis-
tance, and result in sudden deflation
(blowout) because they are more likely to
become punctured or damaged by road
debris, potholes etc.

457 Practical hints
Flat tire
Version 2
aDeflate button
bPressure gauge
If the tire inflation pressure is at least
20 psi (1.3 bar), inflate or deflate the
tire to correct tire inflation pressure
(see Tire and Loading Information plac-
ard on the driver’s door B-pillar):
To increase tire inflation pressure:
Switch on the electric air pump.
To decrease tire inflation pressure
(version 1): Open vent screwa
on pressure gaugeb
(
page 455).
To decrease tire inflation pressure
(version 2): Press yellow deflate
buttona located in air pump hous-
ing next to pressure gaugeb.
Warning!G
If tire inflation pressure has fallen below
20 psi (1.3 bar) do not continue to drive the
vehicle.
Park your vehicle safely away from the road-
way and contact the nearest authorized
Mercedes-Benz Center or Roadside
Assistance.
Have the damaged tire replaced.
Warning!G
Follow recommend inflation pressures.
Do not overinflate tires. Overinflating 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 indicat-
ed by the label on the pillar in the driver’s
door opening). Overloading the tires can
overheat them, possibly causing a blowout.


482 Technical data
Rims and tires
!Only use tires which have been tested and
approved for your vehicle by Mercedes-Benz.
Tires approved by Mercedes-Benz are developed
to provide best possible performance in conjunc-
tion with the driving safety systems on your vehi-
cle such as ABS or ESP
®. Tires specially
developed for your vehicle and tested and ap-
proved by Mercedes-Benz can be identified by
finding the following on the tire’s sidewall:

MO = Mercedes-Benz Original equipment
tires
AMG vehicles:
Does not apply to all approved tires on AMG
vehicles. For information on tested and ap-
proved tires for AMG vehicles, contact an au-
thorized Mercedes-Benz Center.

MOE = Mercedes-Benz Original Extended
(tires with limited run-flat characteristics)
original equipment tires
Using tires other than those approved by
Mercedes-Benz may result in damage that is
not covered by the Mercedes-Benz Limited
Warranty.
iFor information on driving with MOExtended
tires, see “MOExtended system*” (
page 348).
!Using tires other than those approved by
Mercedes-Benz can have detrimental effects,
such as

poor handling characteristics

increased noise

increased fuel consumption
Moreover, tires and rims not approved by
Mercedes-Benz may, under load, exhibit dimen-
sional variations and different tire deformation
characteristics that could cause them to come
into contact with the vehicle body or axle parts.
Damage to the tires or the vehicle may be the
result.
iFurther information on tires and rims is
available at any authorized Mercedes-Benz Cen-
ter. A placard with the recommended tire infla-
tion pressures is located on the driver’s door
B-pillar. Some vehicles may have supplemental
tire inflation pressure information for driving at
high speeds (
page 340) or for vehicle loads
less than the maximum loaded vehicle condition
(
page 339).If such information is provided, it can be found
on the placard located on the inside of the fuel
filler flap. The tire inflation pressure should be
checked regularly and should only be adjusted
on cold tires. Follow tire manufacturer’s mainte-
nance recommendation included with vehicle.
iThe following pages also list the approved
wheel rim and tire sizes for equipping your vehi-
cles with winter tires. Winter tires are not avail-
able as standard or optional factory equipment,
but can be purchased from an authorized
Mercedes-Benz Center.
Depending on vehicle model and the standard or
optional factory-equipped wheel rim/tire config-
uration on your vehicle (Appearance Package,
Sport Package etc.), equipping your vehicle with
winter tires approved for your vehicle model may
also require the purchase of two or four wheel
rims of the recommended size for use with these
winter tires. See an authorized Mercedes-Benz
Center for more information.

492 Technical data
Fuels, coolants, lubricants, etc.
Premium unleaded gasolineFuel requirements
Only use premium unleaded fuel:

The octane number (posted at the
pump) must be 91 min. It is an average
of both the Research Octane Number
(RON) and the Motor Octane Number
(MON): (RON+MON)/2. This is also
known as the ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not
exceed 10%; MTBE not to exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional co-solvents.
Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains
10% ethanol and 90% unleaded gasoline,
can be used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.Warning!G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
personal injury.
Never allow sparks, flame or smoking mate-
rials near gasoline!
Turn off the engine before refueling
Whenever you are around gasoline, avoid in-
haling fumes and skin or clothing contact,
extinguish all smoking materials.
Direct skin contact with fuels and the inha-
lation of fuel vapors can damage your
health.
!To maintain the engine’s durability and per-
formance, premium unleaded gasoline must be
used. If premium unleaded gasoline is not avail-
able and low octane fuel is used, follow these
precautions:

Have the fuel tank only partially filled with
unleaded regular gasoline and fill up with
premium unleaded gasoline as soon as
possible.

Avoid full throttle driving and abrupt
acceleration.

Do not exceed an engine speed of 3 000 rpm
if the vehicle is loaded with a light load such
as two persons and no luggage.

Do not exceed 2/3 of maximum accelerator
pedal position if the vehicle is fully loaded or
operating in mountainous terrain.

499 Index
C
California retail buyers and
lessees, Important notice for 11
Call priority (Tele Aid) 300
Can holder see Cup holder
Capacities and
recommended fuels/lubricants 489
Cargo area see Trunk
Cargo tie-down rings 284
Carpets, cleaning 375
Catalytic converter 318
CD changer* 229
MP3 230
CD player 229
Control system 152
Center console 31
Lower part 32
Upper part 31
Central locking
Automatic 118, 166
Locking/unlocking from inside 119
Central locking switch 119
Certification label 478
Certification label, examples 478
Charcoal filter 209Checking tire pressure electronically
Tire Pressure Monitoring System
(TPMS), (USA only) 344
Children in the vehicle 83
Air bags 83
Blocking
rear side window operation 88
Front passenger front
air bag off indicator lamp 76
Infant and
child restraint systems 77, 83, 86
LATCH-type child seat anchors 87
Occupant Classification System
(OCS) 72
Cigarette lighter 290
Climate control
see Climate control system
Climate control system
Air conditioning refrigerant 491
Air conditioning, Cooling 198, 210
Air distribution 194, 205
Air recirculation mode 196, 207
Air vents 199, 212
Air volume 194, 195, 206
Charcoal filter 209Control panel,
Automatic climate control 201
Deactivating/Reactivating 193, 203
Defogging 206
Defrosting 206
Defrosting, rear window 189
Front defroster 195
MAXCOOL 207
Residual engine heat
and ventilation* (REST*) 211
Temperature 194, 204
Clock 29, 140, 160
Setting time 160
Cockpit 26
Cold tire inflation pressure 358
Collapsible wheel chock 422, 424
COMAND* see separate
COMAND operating instructions
Combination switch 55, 133
Control system 141
Functions 143, 145
Multifunction display 141
Multifunction steering wheel 142
Resetting to factory default 155

508 Index
Mirrors
Adjusting 47
Antiglare position 185
Auto-dimming 186
Exterior rear view mirrors 47
Interior rear view mirror 47
Mobile phone see Telephone*
MOE tires* see MOExtended system*
MOE* see MOExtended system*
MOExtended system* 463
MOExtended tires* 482
MON 321
Motor Octane Number see MON
MP3 230
Multicontour seat* see
Seats, Multicontour*
Multifunction display 141
Changing settings see
Control system menus and
Control system submenus
Selecting language 158
Symbol messages 403–420
Text messages 394–401Multifunction display messages 392
ABS 394
Battery 403
Brake fluid 404
Brake pads 404
Check engine 405
Coolant 405–407
Engine 405
Engine coolant 405–407
ESP
®394
Fog lamps 412
Front passenger
front air bag 396–399
Fuel cap 408
Gear selector lever 400
Headlamps 411–415
Key, SmartKey 411
KEYLESS-GO* 410
Lamps 413
Lamps, exterior 411–415
License plate lamp 413
Light sensor 411
Low tire pressure 419
Parking brake 404
Parking lamps 412
Roll bars 417Soft top 420
SRS 416
Steering gear oil 417
Tele Aid 418
Telephone* 418
Turn signals 412
Windshield washer fluid 420
Multifunction steering wheel 30, 142
Button operation 142
N
Navigation system* 153
See separate COMAND*
operating instructions
Net, Parcel 286
Neutral gear position,
Automatic transmission 172, 174
New vehicle break-in 308
Night security illumination 132
Normal occupant weight 359
Number, paintwork code 478
Number,
vehicle identification (VIN) 478, 479

511 Index
Recommended
tire inflation pressure 359
Recovery services,
Stolen vehicle (Tele Aid) 301
Refrigerant, Air conditioning 491
Refueling 320
Regular checks 322
Remote control
SmartKey 100, 103
SmartKey with KEYLESS-GO* 103
Remote door unlock (Tele Aid) 300
Removing
Ski bag* (Canada only) 280
Replacing bulbs 443
Additional turn signals 444
Backup lamps 444, 448
Brake lamps 444
Corner-illuminating
front fog lamp* 444
Fog lamps 444, 448
Headlamp bulbs 446
Headlamps 444
High beam flasher (Bi-Xenon*) 444
High beam flasher (Halogen) 444
High beam headlamps
(Bi-Xenon*) 444High beam headlamps
(Halogen) 444, 446
High mounted brake lamp 444
License plate lamps 444, 449
Low beam headlamps
(Bi-Xenon*) 444
Low beam headlamps
(Halogen) 444, 446
Parking lamps 444, 447, 448
Side marker lamps 444
Standing lamps 444, 447, 448
Tail lamps 444, 448
Turn signal lamps 444, 448
Turn signal lamps (Bi-Xenon*) 448
Turn signal lamps (Halogen) 447
Reporting safety defects 18
Research Octane Number see RON
Reset button,
In instrument cluster 29, 138, 156
Residual heat and ventilation* see REST*
REST* 211
Restraint system see
Children in the vehicle
Restraint system see SRS
Reverse gear position,
Automatic transmission 172, 174Rims 359, 482
Roadside Assistance 12, 298
Roll bar 82
Messages in display 417
Operating manually 430
Warning lamp 385
RON 321
Roof rack 275
Rubber parts, cleaning 374
Run Flat Indicator (Canada only) 342

514 Index
T
Tachometer 29, 140
Overspeed range 140
Tail lamps
Cleaning lenses 372
Messages in display 414, 415
Replacing bulbs 444, 448
Tar stains 368
Technical data
Air conditioning refrigerant 491
Brake fluid 491
Capacities fuels,
coolants, lubricants etc. 489, 490
Coolant 490, 494
Electrical system 487
Engine 481
Engine oil 491
Engine oil additives 491
Fuel capacity 490
Fuel requirements 492
Gasoline additives 493
Lubricants 489
Premium unleaded gasoline 492
Rims and tires 482
Tires, Mixed size 484
Tires, Same size 483Tires, Spare wheel sizes 486
Vehicle dimensions 488
Weights 488
Windshield washer and headlamp
cleaning* system 490, 496
Tele Aid 33, 295
Call priority 300
Emergency calls 296
Hands-free microphone 33
Information 299
Initiating an
emergency call manually 297
Messages in display 418
Remote door unlock 300
Roadside Assistance 298
SOS button 297
Stolen Vehicle
Recovery services 301
System self-check 295
Tele Aid System 295
Telephone* 30, 169, 292
Answering/ending a call 170
Changing mobile phone cradle 294
Hands-free microphone 33
Inserting in cradle 293Installing a different mobile phone
cradle 294
Messages in display 418
Operation 169, 236
Phone book 170
Redialing 171
Removing from cradle 294
TEL* menu 169
Temperature
Interior temperature 194, 204
Tie-down rings, Trunk 284
Tightening torque, Wheel bolts 462
Tilt/sliding sunroof* see
Power tilt/sliding sunroof*
Time 160
Time, Setting 160
TIN 360
Tire and Loading Information
Placard 335
Terminology 358
Tire inflation pressure 455
Checking tire pressure electronically,
Tire Pressure Monitoring System
(TPMS), (USA only) 344
Tire inflation pressure see
the placard on the fuel filler flap