2007 MERCEDES-BENZ E320 BLUETEC air conditioning

234 Controls in detail4-zone automatic climate controlDeactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the climate
control system. The air in the vehicle will
then no longer be cooled or dehumidified.
Press button2 (
page 222) or
(
page 223).
The indicator lamp on the button goes
out.
Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.

Press button2 (
page 222) or
(
page 223) again.
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.Residual heat and ventilation
(Canada only)
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.
!
If the air conditioning cannot be turned on
again, this indicates that the air conditioning is
losing refrigerant. The compressor has turned it-
self off.
Have the air conditioning checked at the nearest
authorized Mercedes-Benz Center.
i
If you switch on the residual heat function
when temperatures are high, only the ventilation
will be switched on.
i
Regardless of the selected air volume, the
blower operates at low speed.
i
How long the system will provide heating de-
pends on


the coolant temperature


the temperature set by the operator
The blower will run at speed setting1 regardless
of the air distribution control setting.

236 Controls in detail4-zone automatic climate controlYou should raise or lower the temperature
setting in small increments, preferably
starting at 72°F (22°C). The adjusted tem-
perature appears in the display 5. The
rear climate control will adjust to the set
temperature as fast as possible.
1Temperature, left
2Temperature, right
Adjust the temperature to the desired
setting for each side of the passenger
compartment using the left and right
temperature buttons.
The temperature in the rear passenger
compartment is adjusted automatical-
ly.Adjusting air distribution

Move the slider for the left center air
vent1 or right center air vent2 to
the left, right, up, or down.
The air flow is directed in the
corresponding direction.
Adjusting air volume

Turn thumbwheel3 or 7
(page 235) up or down.
The air volume is increased or
decreased.
Adjusting the rear settings with the
front control panel
You can adjust the temperature for the
rear climate control from the front climate
control panel.

Press button5 or ™
(page 222) or (
page 223).
The display switches over.
1Rear climate control display

Set the desired temperature for the
rear passenger compartment using
temperature rocker switches4
and6 (
page 235).
After approximately 5 seconds after
the last adjustment, the display switch-
es back to its standard display.
i
The rear climate control will not cool the air
when the air conditioning is switched off
(
page 234).
i
For draft-free ventilation, move sliders for
the center air vents1 and2 (
page 235) up-
ward.
i
You can also press button5 or ™
(
page 222) or (
page 223) once more to
switch back to the standard display.

360 OperationTires and wheelsBar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least 3 hours or driv-
en no more than 1 mile (1.6 km).
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so
equipped, air conditioning and additional
optional equipment, but without passen-
gers and cargo.DOT (D
epartment o
f T
ransportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross A
xle W
eight R
ating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
certification label located on the driver’s
door B-pillar.
GVW (G
ross V
ehicle W
eight)
The GVW comprises the weight of the
vehicle including fuel, tools, spare wheel,
installed accessories, passengers and
cargo and, if applicable, trailer tongue
load. The GVW must never exceed the
GVWR indicated on the certification label
located on the driver’s door B-pillar.GVWR (G
ross V
ehicle W
eight R
ating)
This is the maximum permissible vehicle
weight of the fully loaded vehicle (weight of
the vehicle including all options, passen-
gers, fuel, and cargo and, if applicable,
trailer tongue load). It is indicated on
certification label located on the driver’s
door B-pillar.
Kilopascal (kPa)
The metric unit for air pressure. There are
6.9 kPa to 1 psi; another metric unit for air
pressure is bar. There are 100 kilopascals
(kPa) to 1 bar.
Maximum load rating
The maximum load in kilograms and
pounds that can be carried by the tire.
Maximum loaded vehicle weight
The sum of curb weight, accessory weight,
total load limit, and production options
weight.

478 Technical dataLayout of poly-V-belt driveE 320 BLUETEC
1Coolant pump
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Idler pulley
8Generator (alternator)
E 350 / E 550
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)
E63AMG
1Idler pulley
2Idler pulley
3Idler pulley
4Automatic belt tensioner
5Power steering pump
6Air conditioning compressor
7Crankshaft
8Coolant pump
9Generator (alternator)

494 Technical dataFuels, coolants, lubricants etc.
Model
Capacity
Fuels, coolants, lubricants etc.
Fuel tank
21.12 US gal (80.0 l)
Gasoline engine:
Premium unleaded gasoline
Minimum Posted Octane 91
(Avg. of 96 RON/86 MON)
Diesel engine:
ULTRA-LOW SULFUR DIESEL FUEL
(15 ppm SULFUR MAXIMUM)
including a reserve of
all except
E63AMG
2.38 US gal (9.0 l)
including a reserve of
E63AMG
3.7 US gal (14.0 l)
Air conditioning system
R-134a refrigerant and special PAG lubricant
oil (never R-12)
Windshield washer system
4.8 US qt (4.5 l)
MB Windshield Washer Concentrate
1
1Use MB Windshield Washer Concentrate “MB SummerFit” and water for temperatures above freezing or MB Windshield Washer Concentrate “MB SummerFit” and
commercially available premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 500).Windshield washer system and
headlamp cleaning system*
6.9 US qt (6.5 l)
MB Windshield Washer Concentrate
1

495 Technical data
Fuels, coolants, lubricants etc.
Engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for
our service intervals. Therefore, only use
approved engine oils and oil filters
required for vehicles with Maintenance
System (U.S. vehicles) or FSS PLUS
(Canada vehicles). For a listing of approved
engine oils and oil filters, refer to the
Factory Approved Service Products
pamphlet (USA only), or contact an
authorized Mercedes-Benz Center.
Engine oil additives
Do not blend oil additives with engine oil.
They may damage the engine.
Damage or malfunctions resulting from
blending oil additives are not covered by
the Mercedes-Benz Limited Warranty.Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air
conditioning system.
Never use R-12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the
system will occur.
Brake fluid
Only brake fluid approved by
Mercedes-Benz is recommended. Your au-
thorized Mercedes-Benz Center will pro-
vide you with additional information.
!
Using engine oils and oil filters of specifica-
tion other than those expressly required for the
Maintenance System (U.S. vehicles) or
FSS PLUS (Canada vehicles), or changing of oil
and oil filter at change intervals longer than
those called for by the Maintenance System
(U.S. vehicles) or FSS PLUS (Canada vehicles)
will result in engine or emission control system
damage not covered by the Mercedes-Benz
Limited Warranty.Please follow Maintenance System (U.S. vehi-
cles) or FSS PLUS (Canada vehicles) recommen-
dations for scheduled oil changes. Failure to do
so will result in engine or emission control sys-
tem damage not covered by the Mercedes-Benz
Limited Warranty.
Warning!
G
During vehicle operation, the boiling point of
the brake fluid is continuously reduced
through the absorption of moisture from the
atmosphere. Under extremely strenuous
operating conditions, this moisture content
can lead to the formation of bubbles in the
system, thus reducing the system’s
efficiency.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s
Maintenance Booklet for replacement
interval.

501 Index
A
ABS 97
Indicator lamp 380
Messages in display 398, 413
Accelerator position, automatic
transmission 188
Accessory weight 359
Accident 60
Active Bi-Xenon headlamps* see Head-
lamps
Active head restraints 87
Adaptive Damping System see ADS
ADS 265
Air bags 70
Children 71
Front, Driver 74
Front, Passenger 74
Safety guidelines 72
Side impact 75
Window curtain 75
Air conditioning refrigerant 495
Air conditioning system see Climate con-
trol system
Air conditioning, Cooling 217, 233
Air distribution 211, 228
Air pressure 359Air pressure see Tire inflation
pressure 342
Air pump, electric
Turning on 457
Air recirculation mode 214, 231
Air vents 211, 228
Air volume 212, 229
Airmatic DC (Dual Control)
Messages in display 430
Suspension tuning 265
Airmatic DC (Dual Control) 265
Vehicle level control 266
Alarm system see Anti-theft systems
Alignment bolt (vehicle tool kit) 434, 455
AMG menu 157
Anticorrosion/antifreeze 499
Antilock Brake System see ABS
Anti-theft systems 106
Anti-theft alarm system 106
Immobilizer 106
Aquaplaning see Hydroplaning
Ashtrays 287
Aspect ratio 359AUDIO menu 161
Operating CD player 162
Selecting radio station 161
Selecting satellite radio* station 161
Audio search function 177
Audio system
CD mode 162
Auto-dimming
Rear view mirrors 198
Automatic central locking, Control
system 176
Automatic headlamp mode 138
Automatic lighting control, Interior
lighting 145
Automatic locking when driving 176
Automatic shift program 190

503 Index
CD player 162
Center console
Lower part 30
PASS AIR BAG OFF indicator
lamp 393
Upper part 29
Central locking
Automatic 127, 176
Locking/unlocking from inside 127
Central locking switch 127
Certification label 476
Checking
Oil level 327
Checking tire pressure electronically with
the Advanced Tire Pressure Monitoring
System (Advanced TPMS)*,
(Canada only) 345
Children in the vehicle 88
Air bags 71
Blocking of rear window operation 95
Indicator lamp, front passenger front
air bag 81
Infant and child restraint systems 89
LATCH-type child seat anchors 94
Cigarette lighter 288Climate control system
4-zone automatic climate
control 220
Air conditioning refrigerant 495
Air conditioning, Cooling 217, 233
Air distribution 211, 228
Air recirculation mode 214, 231
Air volume 212, 229
Automatic mode 209, 226
Control panel, Rear 219, 235
Deactivating system 209, 225
Dual-zone automatic climate
control 204
Front defroster 212, 229
Maximum cooling MAX COOL 214,
230
Rear climate control 235
Residual engine heat (REST) 218,
234
Clock 27, 171
Setting time 172
Cockpit 24
Cold tire inflation pressure 360
Collapsible tire 487
Collapsible wheel chock 434COMAND see separate COMAND operat-
ing instructions
Combination filter with pollutant-sensitive
air-recirculation mode 233
Combination switch 57, 141
Control system 151
Multifunction display 151
Multifunction steering wheel 152
Resetting to factory settings 166
Control system menus 154
AMG 157
AUDIO 161
Distronic* 163
NAV* 163
Settings 166
Standard display 157
TEL* 181
Trip computer 179
Vehicle status message memory 164
Control system submenus 153
Convenience 178
Instrument cluster 169
Lighting 173
Time/Date 171
Vehicle 176