belt MERCEDES-BENZ SLK CLASS 2007 Owner's Guide

351 Practical hints
What to do if …
ProblemPossible cause/consequenceSuggested solution
on for a maximum of 6 seconds
after starting the engine.The seat belt telltale reminds you and your
passenger to fasten your seat belts before
driving off.Fasten your seat belts.
Regardless of whether the seat belts
are fastened or not, the seat belt tell-
tale always comes on and remains lit
for 6 seconds after starting the en-
gine.
maximum of 6 seconds after
starting the engine.You have forgotten to fasten your seat belt.Fasten your seat belt.
The warning chime stops sounding.
on while the vehicle is standing
still and the engine is running or
during driving.You and/or your passenger have forgotten to
fasten your seat belts.Fasten your seat belts.
The seat belt telltale goes out.
There are items placed on the passenger seat
and therefore the system senses the passen-
ger seat as being occupied.Remove the items from the passenger
seat and put them in a safe place.
The seat belt telltale goes out.

352 Practical hints
What to do if …
ProblemPossible cause/consequenceSuggested solution
telltale flashes and you addition-
ally hear an intermittent warning
chime sound with increasing in-
tensity.The vehicle’s speed once exceeds 15 mph
(25 km/h) and you and/or your passenger
have forgotten to fasten your seat belts.Fasten your seat belts.
The seat belt telltale goes out and the
warning chime stops sounding.
There are items placed on the passenger seat
and therefore the system senses the passen-
ger seat as being occupied.Remove the items from the passenger
seat and put them in a safe place.
The seat belt telltale goes out and the
warning chime stops sounding.
iAfter 60 seconds with an unfastened seat
belt, the warning chime stops sounding and the
seat belt telltale illuminates continuously. The
seat belt telltale will only go out if both, the driver
and passenger’s seat belt are fastened, or the
vehicle is standing still and a door is opened.

366 Practical hints
What to do if …
Symbol messages
Display symbolDisplay messagePossible cause/consequencePossible solution
#The battery is no longer charging.
Possible causes:

Alternator malfunctioning

Broken poly-V-belt
Do not forget that the brake system
requires electrical energy and may
be operating with restricted capa-
bility. Considerably greater brake
pedal force is required and the stop-
ping distance is increased.
Stop the vehicle immediately in a safe loca-
tion and check the poly-V-belt.
If it is broken:
Do not continue to drive.
Otherwise, the engine will overheat due
to an inoperative water pump which may
result in damage to the engine. Contact
an authorized Mercedes-Benz Center.
If it is in order:
Contact an Mercedes-Benz Center
immediately. Adjust driving to be consis-
tent with reduced braking responsive-
ness.
USA only:
;
Canada only:
!
Release
parking brakeYou are driving with the parking
brake set.Release the parking brake (page 53).

368 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
•Coolant
Stop, turn engine
offThe coolant is too hot.
Among other possible causes,
the poly-V-belt could be broken.Stop the vehicle in a safe location or as soon as it is
safe to do so.
Turn off the engine.
Apply the parking brake (page 59).
Check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise, the engine will
overheat due to an inoperative water pump which
may result in damage to the engine. Contact an
authorized Mercedes-Benz Center.
If it is intact:
Wait for the message to disappear before restarting
the engine.
Doing otherwise could result in serious engine
damage that is not covered by the Mercedes-Benz
Limited Warranty.
(Continued on next page)

381 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
Please fasten beltThe display reminds you to fasten
your seat belt.Fasten your seat belt.
Front passenger
Please fasten beltThe display reminds you and your
passenger to fasten your seat belts.Fasten your seat belts.
tPHONE OFFThis display appears if buttons
ort on the multifunction steer-
ing wheel is pressed and the vehicle
is not equipped with a telephone*.
ÊThis message will appear whenever
the trunk lid is open.Close the trunk lid.
MClose
trunk partitionYou are trying to open or close the
retractable hardtop even though
the luggage cover in the trunk is not
closed and/or properly engaged.Close the luggage cover (page 241).
WTop up
washer fluidThe fluid level in the windshield
washer fluid reservoir has dropped
below its minimum mark.Add washer fluid (page 302).

427 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.

432 Technical data
Layout of poly-V-belt drive
SLK 280, SLK 350
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)SLK 55 AMG
1Automatic belt tensioner
2Power steering pump
3Air conditioning compressor
4Crankshaft
5Coolant pump
6Generator (alternator)
7Idler pulley

433 Technical data
Engine
Engine
ModelSLK 280 (171.454)1
1The quoted data apply only to the standard vehicle. Contact an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special
equipment.
SLK 350 (171.456)1SLK 55 AMG (171.473)1
Engine272272113
Mode of operation4-stroke engine, gasoline
injection4-stroke engine, gasoline
injection4-stroke engine, gasoline
injection
No. of cylinders668
Bore3.47 in (88.00 mm)3.66 in (92.90 mm)3.82 in (97.00 mm)
Stroke3.23 in (82.20 mm)3.39 in (86.00 mm)3.60 in (92.00 mm)
Total piston displacement182.8 cu in (2 996 cm3)213.5 cu in (3 498 cm3)331.8 cu in (5 439 cm3)
Compression ratio11.3:110.7:111:1
Output according to
SAE J 1349228 hp/6 100 rpm2
(170 kW/6 100 rpm)
268 hp/6 000 rpm2
(200 kW/6 000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
355 hp/5 750 rpm2
(265 kW/5 750 rpm)
Maximum torque according
to SAE J 1349221 lb-ft/2 500 - 5 000 rpm
(300 Nm/2 500 - 5 000 rpm)258 lb-ft/2 400 - 5 000 rpm
(350 Nm/2 400 - 5 000 rpm)376 lb-ft/4 000 rpm
(510 Nm/4 000 rpm)
Maximum engine speed6500 rpm6500 rpm6700 rpm
Firing order1-4-3-6-2-51-4-3-6-2-51-5-4-2-6-3-7-8
Poly-V-belt2404 mm2404 mm2380 mm

456 Index
E
Easy-entry/exit feature* 44, 147
Electric air pump
Inflating collapsible tire 411
Sealing tires with TIREFIT 401
Vehicle tool kit 382
Electrical system (Technical data) 440
Electronic Stability Program see ESP
®
Emergency call (911) 233
Emergency call system 262
Tele Aid* 263
Emergency operations
Automatic transmission* (Limp-Home
Mode) 167
Remote door unlock, Tele Aid* 269
Retractable hardtop 390
Selector lever*, unlocking
manually 389
Trunk lid, Releasing from the
inside 101
Unlocking/locking the vehicle 387Emergency Tensioning Device see ETD
Emission control 289
Information label 431
System warranties 10
Vacuum line routing diagram 431
Engine
Cleaning 339
Compartment 294
Malfunction indicator lamp 27, 349
Number 431
Poly-V-belt layout 432
Starting 51
Tachometer 119
Technical data 433
Turning off 61Engine oil 296, 445
Adding 299
Additives 445
Checking level (Control system) 296
Checking level (Dipstick) 298
Consumption 296
Messages in the multifunction
display 297, 372–373
ESP®84, 86
Messages in the multifunction
display 358, 359
Warning lamp 350
ETD 79
Safety guidelines 68
Warning and indicator lamps 353
Exterior lamp switch 109
Exterior lighting
Lamps 393
Replacing bulbs 393
Exterior rear view mirrors see Mirrors

458 Index
H
Hard plastic trim items, cleaning 342
Hazard warning flasher 115, 116
Head restraint height (Seats) 42
Headlamps
Bi-Xenon* 394
Cleaning system* 168, 302, 450
Night security illumination (Control
system) 144
Switching off 61
Switching on 55
Headliner, cleaning 342
Head-thorax air bag 70
Heating
Seats* 104
Steering wheel* 276
High beam
Flasher 113
Headlamps 55, 113
Headlamps, bulbs 394
High beam headlamps 109
High mounted brake lamp 395
High-performance brake system 281
Hood 294
Horn 25
Hydroplaning 284I
Identification labels see Labels
Ignition (Position in starter switch) 37
Immobilizer see Anti-theft systems
Infant and child restraint systems see
Children in the vehicle
Instrument cluster 27, 118
Clock 120
Lamps, indicator and warning 346
Overview 26
Instruments and controls see Cockpit
Interior rear view mirror see Mirrors
Intermittent/interval wiping see
Windshield wipers
J
Jack (Vehicle tool kit) 382
Lifting vehicle 407
Lowering vehicle 413
Jump starting 419K
Kickdown 159
Kilopascal 328
Knee bag see Air bags
L
Labels 430
Lamp in center console 354
Lamps in instrument cluster 346
Lamps, indicator and warning
ABS 346, 347
Battery (SmartKey) 97
Brakes 348
CHECK ENGINE 349
ESP
®87, 350
Passenger front air bag off 74, 354
Fuel reserve 353
Passenger front air bag off 354
Seat belts 351–352
SRS 65, 353