2005 MERCEDES-BENZ E55AMG engine

208 Controls in detail4-zone automatic climate control*
The climate control is a 4-zone intelligent
climate control system. Your vehicle interi-
or is divided into 4 zones.With the help of a sun sensor, the climate
control determines the relation of the sun
to the vehicle and automatically adjusts
the inside temperature for every individual
zone.
You can set the temperature for each of
the 4 zones separately. These settings can
be assigned to a SmartKey and stored in
memory (
page 168).
The climate control is operational whenev-
er the engine is running. It cools the vehi-
cle’s interior according to the angle and
intensity of the sun’s rays, the outside tem-
perature and the selected temperature.
You can operate the climate control sys-
tem in either the automatic or manual
mode.
Warning!
G
When operating the climate control, the air
that enters the passenger compartment
through the air vents in the footwell can be
very hot or very cold (depending on the set
temperature). This may cause burn or frost-
bite to unprotected skin in the immediate
area of the air vents. Always keep sufficient
distance between unprotected parts of the
body and the footwell air vents. If necessary
change the air flow using the air distribution
controls (
page 206) to direct the air away
from the footwell air vents.

214 Controls in detail4-zone automatic climate control*Air 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 climate
control system. The air in the vehicle will
then no longer be cooled or dehumidified.
Climate control design A

Press button± (
page 206).
The indicator lamp on the button
comes on.
AC
OFF
in the display comes on.
The cooling function and heater boost-
er system (Diesel engine) (
page 217)
are switched off.
Climate control design B

Press button2 (
page 207).
The indicator lamp on the button goes
out.
The cooling function (page 217) is
switched off.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Climate control design A

Press button± (
page 206) again.
The indicator lamp on the button goes
out.
AC
OFF
in the display goes out.
Climate control design B

Press button2 (
page 207) 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.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.Warning!
G
If you turn off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and
others.

215 Controls in detail
4-zone automatic climate control*
Residual heat and ventilation (available on climate control panel design A 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.
Activating
Turn the SmartKey in the starter switch
to position0 or1, or remove it from
the starter switch.

Press buttonT(
page 206).
REST in the display comes on.
Deactivating

Press buttonT(
page 206).
REST in the display goes out.The residual heat is automatically turned
off


when the ignition is switched on


after about 30 minutes


if the battery voltage drops
!If the air conditioning cannot be turned
on again, this indicates that the air con-
ditioning is losing refrigerant. The com-
pressor has turned itself off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.
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
setting 1 regardless of the air distribu-
tion control setting.

217 Controls in detail
4-zone automatic climate control*
Heater booster system (Diesel engine)
Your vehicle is equipped with a heater
booster system. A PTC heating element
(page 475) ensures that the vehicle inte-
rior is warmed up as quickly as possible
when the engine has not reached its nor-
mal operating temperature yet.
The heater booster system switches on au-
tomatically if required.iThe normal display will appear when
the™ button or the button5 is
pressed again.iIf the cooling function for the air condi-
tioning is switched off with the
±button (
page 206), the heater
booster system is deactivated too.

230 Controls in detailPanorama roof with power tilt/sliding panel*
Move and hold the roof panel switch in
the direction of arrow3 until the
tilt/sliding panel is fully raised.

Keep holding the roof panel switch in
the direction of arrow3 for approxi-
mately one second.

Move and hold the roof panel switch in
the direction of arrow2 until the
tilt/sliding panel is fully closed.

Keep holding the roof panel switch in
the direction of arrow2 for approxi-
mately one second.

Check the Express-open feature of the
tilt/sliding panel (
page 229).
If the tilt/sliding panel opens com-
pletely, the roof is synchronized. Other-
wise repeat the above steps.
Solar panel*
A solar panel is available in combination
with the panorama roof with tilt/sliding
panel. The solar cells convert natural light
into electrical energy. When the engine is
switched off, the energy generated auto-
matically switches on the ventilation fan.
The constant air flow creates a cooler tem-
perature for cars parked in the sunlight.
The air flow depends on the intensity of the
solar radiation. The ventilation starts two
minutes after switching off the engine.


232 Controls in detailDriving systems1Set current or higher speed
2Set current or lower speed
3Cancel cruise control
4Resume at previously set speed
Setting current speed
Accelerate or decelerate to the desired
speed.

Briefly lift1 or depress2 the cruise
control lever.
The current speed is set.

Remove your foot from the accelerator
pedal.
Cruise control is activated.The selected speed appears in the multi-
function display for approximately five sec-
onds, and the corresponding speedometer
segments from the selected speed to the
vehicle maximum speed are illuminated.
iOn uphill or downhill grades, cruise
control may not be able to maintain the
set speed. Once the grade eases, the
set speed will be resumed.
E 320 CDI, E 320, E 500, E 55 AMG:
On downhill grades, the cruise control
will hold the set speed with active brak-
ing action.
In addition, on longer downhill grades
the automatic transmission will auto-
matically downshift.
E 320 4MATIC, E 500 4MATIC:
If the engine’s braking power does not
brake the vehicle sufficiently on down-
hill grades, the automatic transmission
will automatically downshift.

233 Controls in detail
Driving systems
Canceling cruise control
There are several ways to cancel cruise
control:
Step on the brake pedal.
Cruise control will be canceled. The
last speed set will be stored for later
use.
or

Briefly push the cruise control lever to
position3.
Cruise control will be canceled. The
last speed set will be stored for later
use.iThe last stored speed is canceled when
you turn off the engine.
iCruise control automatically switched
off, if
E 320 CDI, E 320, E 500, E 55 AMG:

you step on the brake pedal.


you depress the parking brake ped-
al.
In this case the segments in the
multifunction display (
page 232)
go out and no warning sounds.


the vehicle speed is below 25 mph
(40 km/h).


the ESP is in operation or switched
off with the ESP switch (
page 89).


you move the gear selector lever to
position N while driving.
The segments in the multifunction dis-
play (page 232) go out, and an
acoustic warning sounds.
E 320 4MATIC, E 500 4MATIC:

you step on the brake pedal.


you move the gear selector lever to
position N while driving.


the vehicle speed is below 20 mph
(30 km/h).


ESP is in operation.
The segments in the multifunction dis-
play are flashing.
!Moving gear selector lever to
positionN while driving also cancels
cruise control. However, the gear se-
lector lever should not be moved to
positionN while driving except to coast
when the vehicle is in danger of skid-
ding (e.g. on icy roads).

234 Controls in detailDriving systemsSetting a higher speed
Lift cruise control lever to position1
and hold it up until the desired speed is
reached.

Release cruise control lever.
The new speed is set.
Setting a lower speed

Depress cruise control lever to
position2 and hold it down until the
desired speed is reached.

Release cruise control lever.
The new speed is set.Fine adjustment in 1 mph
(Canada: 1 km / h) increments
Faster

Briefly tip cruise control lever in direc-
tion of arrow1.
Slower

Briefly tip cruise control lever in direc-
tion of arrow2.Setting to last stored speed
(“Resume” function)

Briefly pull cruise control lever to
position4.
The cruise control resume the last set
speed.

Remove your foot from the accelerator
pedal.
The selected speed appears in the multi-
function display for approximately five sec-
onds, and the corresponding speedometer
segments from the selected speed to the
vehicle maximum speed are illuminated.
iDepressing the accelerator pedal does
not deactivate cruise control. After
brief acceleration (e.g. for passing),
cruise control will resume the last
speed set.
iE 320 CDI, E 320, E 500, E 55 AMG:
When you use the cruise control lever
to decelerate, the brake system will au-
tomatically brake the vehicle if the en-
gine’s braking power does not brake
the vehicle sufficiently.
E 320 4MATIC, E 500 4MATIC:
When you use the cruise control lever
to decelerate, the transmission will au-
tomatically downshift if the engine’s
braking power does not brake the vehi-
cle sufficiently.
Warning!
G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to the pre-
set speed could cause an accident and/or
serious injury to you and others.