climate control MERCEDES-BENZ SLR CLASS 2005 User Guide

187 Controls in detail
Automatic climate control
Adjusting air distribution
Use air distribution control knobs1
and5 (
page 184) to separately adjust
the air distribution on each side of the pas-
senger compartment. The following sym-
bols are found on the controls:Adjusting manually

Press the control knob.
The U light on the control knob
goes out. The air distribution can be ad-
justed manually.
Adjusting automatically

Press the control knob.
The U light on the control knob
comes on. The air distribution is adjust-
ed automatically.
Windshield fogged on the outside

Switch the windshield wipers on.

Turn the air distribution control to h
or k.
Maximum cooling MAXCOOL
If the left and right air distribution controls
as well as the airflow volume control are
set to U and there is a high need for
cooling, MAXCOOL is activated.
This provides the fastest possible cooling
of the vehicle interior.
Symbol
Function
h
Directs air through the cen-
ter air vents
j
Directs air to the windows
V
Directs air into the entire
vehicle interior
k
Directs air to the footwells

188 Controls in detailAutomatic climate controlDefrosting the windshield
Activating
Press button P (
page 184).
The indicator lamp on the button
comes on.
Deactivating

Press button P (
page 184).
The indicator lamp on the button goes
out. Defrosting is turned off.
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside. This setting cuts off the
intake of outside air and recirculates the
air in the passenger compartment.Activating

Press button , (
page 184).
The indicator lamp on the button
comes on.
iThese settings should only be selected
for a short time.
Warning!
G
When the outside temperature is below
41°F (5°C), only switch to air recirculation
mode for short periods to prevent window
fogging.
Warning!
G
Never operate the windows if there is the
possibility of anyone being harmed by the
closing procedure.
In the event that the procedure causes po-
tential danger, the closing of the windows
can be immediately halted by releasing the ,
button or by pressing or pulling the re-
spective window switch.

189 Controls in detail
Automatic climate control
Deactivating
Press button , (
page 184).
The indicator lamp on the button goes
out.
The air recirculation mode is deactivated
automatically


after five minutes if the outside temper-
ature is below approximately 41°F
(5°C)


after five minutes if the air conditioner
is turned off


after 30 minutes if the outside temper-
ature is above approximately 41°F
(5°C)
At outside temperatures above 79°F
(26°C) the system will not automatically
switch back to outside air. A quantity of
outside air is added after approximately
30 minutes.
iIf you keep button , pressed, the
windows will close.
The air recirculation mode is activated
automatically

at high outside temperatures


if the concentration of carbon mon-
oxide and nitrogen oxide in the out-
side air increases, for example in a
tunnel
If you have turned off the air condition-
er (page 192) or the outside
temperature is below 41°F (5°C), the
air recirculation mode will not switch
on automatically.
iIf you keep button , pressed, the
windows will return to their previous
position.

190 Controls in detailAutomatic climate controlResidual heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.Activating

Turn the SmartKey in the starter switch
to position1 or0 o r r e m o v e i t f r o m t h e
starter switch.

Press button T (
page 184).
The indicator lamp on button T
comes on.Deactivating

Press button T (
page 184).
The indicator lamp on button T
goes out.
The residual heat is automatically turned
off:


when the ignition is switched on


after about 30 minutes


if the battery voltage drops
iHow long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set by the
operator. The blower will run at speed
setting1 regardless of the air distribu-
tion control setting.

191 Controls in detail
Automatic climate control
Deactivating the automatic climate control systemDeactivating
It is possible to completely deactivate the
automatic climate control system.

Press button M (
page 184).
The indicator lamp on button M
comes on.Reactivating
There are several ways to reactivate the
automatic climate control system:

Press any button on the automatic cli-
mate control panel (
page 184).
The indicator lamp on button M
switches off.
or

Turn one of the control knobs on the
automatic climate control.
The indicator lamp on button M
switches off.
iWhen the air conditioning is switched
off, the outside air supply and circula-
tion are also switched off. Only choose
this setting for a short time. Otherwise
the windows could fog up.
iUnder certain circumstances, e.g.
when the fuel system is too hot and
needs to be cooled, the cooling switch-
es on again automatically. The red lamp
on the ± button the automatic cli-
mate control panel flashes.
After cooling the fuel system sufficient-
ly, the air conditioning switches off
again and the red lamp stops flashing.

192 Controls in detailAutomatic climate controlAir conditioning
The air conditioning is operational while
the engine is running and cools the interior
air to the temperature set by the operator.Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the automatic
climate control system. The air in the vehi-
cle will then no longer be cooled or dehu-
midified.

Press ± button (
page 184).
The indicator lamp on the ±
button comes on.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.

Press ± button again (
page 184).
The indicator lamp on the ± button
goes out.
The air conditioning uses the refrigerant
R134A. This refrigerant is free of CFCs
which are harmful to the ozone layer.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.
iUnder certain circumstances, e.g.
when the fuel system is too hot and
needs to be cooled, the cooling switch-
es on again automatically. The red lamp
on the ± button the automatic cli-
mate control panel flashes.
After cooling the fuel system sufficient-
ly, the air conditioning switches off
again and the red lamp stops flashing.
!If you press the ± button on the au-
tomatic climate control panel and it
starts to flash, this indicates that the
air conditioning is losing refrigerant.
The compressor has turned off. The air
conditioning cannot be turned on
again.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.

276 OperationTires and wheelsUniform Tire Quality Grading Standards (U.S. vehicles)
Tire manufacturers are required to grade
tires based on three performance
factors: treadwear, traction and
temperature resistance.
1Treadwear
2Traction
3Temperature resistanceQuality grades can be found, where appli-
cable, on the tire sidewall between tread
shoulder and maximum section width. For
example:
All passenger car tires must conform to
federal safety requirements in addition to
these grades.Treadwear
The treadwear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one
and one-half (1
1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly
from the norm due to variations in driving
habits, service practices and differences in
road characteristics and climate.
iFor illustration purposes only. Actual
data on tires is specific to each vehicle
and may vary from data shown in above
illustration.
Treadwear
Traction
Temperature
200
AA
A

392 IndexAnti-theft alarm system 90
Arming 91
Canceling alarm 91
Disarming 91
Anti-theft device
Dust cover 224
Anti-theft systems
Anti-theft alarm system 90
Tow-away alarm 91
Anti-theft wheel nuts 282
Fitting 283
Removing 283
Aquaplaning see Hydroplaning
Ashtray 202
Aspect ratio 278
AUDIO menu 122
Operating CD player 123
Selecting radio station 123
Audio system 31, 143
Audio and telephone, operation 143
Button and soft key operation 146
Cassette operation 152
CD operation 156
Location 143
Operating and display elements 144
Operating safety 143Operation 146
Radio operation 149
Switching off 146
Switching on 146
Telephone operation 160
Auto-dimming for interior rear view
mirror 179
Automatic
Interior lighting control 111
Automatic car wash 290
Automatic central locking
Activating/deactivating (control
system) 135
Automatic climate control 31, 182
Adjusting air distribution 187
Adjusting air volume 185, 186
Air recirculation 188
Center air vents 31
Deactivating 191
Defrosting the windshield 188
MAXCOOL 187
Residual heat utilization 190
Side air vents 31
Temperature sensor 33
Automatic headlamp mode 106Automatic transmission 167
Accelerator position 173
Emergency operation (Limp Home
Mode) 177
Fluid level 248
Gear ranges 170
Gear selector lever 167
Gear selector lever position 167, 171
Gear shifting malfunctions 177
Kickdown 173
Manual shifting 168
One-touch gearshifting 168
Shift program mode selector
switch 173
Steering wheel gearshift control 174
Towing 360
Transmission fluid 248
Automatic transmission fluid 248

395 Index
Control system 117, 386
AUDIO menu 122
Display digital speedometer 122
Functions 119, 121
Instrument cluster submenu 128
Lighting submenu 130
Menus 120, 121
Multifunction display 117
Multifunction steering wheel 118
Selecting radio system 123
Settings menu 125
Standard display menu 117, 122
Submenus 119, 121
TEL menu 138
Trip computer menu 136
Vehicle submenu 134
Coolant 249, 380
Adding 249
Anticorrosion/antifreeze
quantity 381
Checking level 249
Messages in the multifunction
display 320Temperature 239
Temperature gauge 114
Topping up 249
Warning lamp 29, 300
Coolant level
Checking 241, 249
Messages in the multifunction
display 319
Cooling see Air conditioning
Courtesy lighting 112
Cruise control 197, 386
Canceling 198
Driving downhill 198
Driving uphill 198
Fine adjustment 199
Lever 27, 197
Setting current speed 198
Setting speeds 199
Curb weight 278
Customer Assistance Center 385D
Daytime running lamp mode 107
Setting 131
Deactivating
Air conditioning (cooling) 192
Air recirculation mode 189
Alarm 91
Anti-theft alarm system 91
Automatic climate control 191
Central locking (control system) 135
Cruise control 198
Engine with the SmartKey 58
ESP 83
Exterior lamps 106
Exterior lamps delayed shut-off 132
Headlamps 57
Immobilizer 90
Interior light delayed switch-off 134
Interior lighting delayed shut-off 134
Manual gearshift program 177
Rear window defroster 181
Residual heat 190
Tow-away alarm 92

405 Index
Q
Quick search
Phone book 141
R
Radio
Selecting stations 123
Station search 123
Station selection setting 135
Radio operation 149
Radio see Radio operation
Radio transmitters, control and
operation 237
Range (distance to empty)
Calling up 138
Reactivating
Automatic climate control 191
Reading lamp 33
Rear
Storage compartment 201
Rear bulbs 347Rear fog lamp
Switching on 109
Rear lamps see Tail lamps
Rear view mirrors see Mirrors
Rear window defroster 181
Rear-view mirror 33
Recommended inflation pressure 280
Redial memory 142
Refueling 240
Refuelling
Unleaded premium grade
gasoline 240
Regular checks 241
Remote control
SmartKey 96
Removing
Anti-theft wheel nuts 283
Replacing
Battery (SmartKey) 344
Wiper blades 348Resetting
All functions (control system) 126
ESP 307
Fuel consumption 138
Maintenance service indicator 288
Trip odometer 115
Residual heat utilization 190
Restraint system see Infant and child re-
straint systems
Restraint systems 62
Airbags 62, 63
Child seat recognition 62
Child seats 62
Emergency Tensioning Device
(ETD) 62, 72
Seat belts 62, 69
Rim 280
RON 240, 388
Roof rack 225