engine MERCEDES-BENZ E WAGON 2005 S211 Workshop Manual

200 Controls in detailDual-zone automatic climate controlThe climate control is operational whenev-
er the engine is running. You can operate
the climate control system in either the au-
tomatic or manual mode. The system cools
or heats the interior depending on the se-
lected interior temperature and the cur-
rent outside temperature.Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.
The air conditioning will not engage (no
cooling) if the AC
OFF
mode is activated or
AC mode is deactivated (
page 206).
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 burns 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 198) to direct the air away
from the footwell air vents.
Warning!
G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
iSevere conditions (e.g. strong air pollu-
tion) may require replacement of the fil-
ter before its scheduled interval. A
clogged filter will reduce the air volume
to the interior.
If the vehicle interior is hot, ventilate
the interior before driving off.
Keep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing ob-
jects on the air flow-through exhaust
slots below the rear window.

206 Controls in detailDual-zone automatic 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 climate
control system. The air in the vehicle will
then no longer be cooled or dehumidified.
Climate control panel design A

Press button± (
page 198).
The indicator lamp on the button
comes on.
The cooling function is switched off.
Climate control panel design B

Press buttonœ (
page 199).
The indicator lamp on the button goes
out.
The cooling function is switched off.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Climate control panel design A

Press button± (
page 198) again.
The indicator lamp on the button goes
out.
Climate control panel design B

Press buttonœ (
page 199) 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.

207 Controls in detail
Dual-zone automatic climate control
Residual heat and ventilation*
(available on climate control panel de-sign 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 position0or1, or remove it from
the starter switch.

Press buttonT (
page 198).
The indicator lamp on button comes
on.Deactivating

Press buttonT (
page 198).
The indicator lamp on button 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.

212 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 176).
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 210) to direct the air away
from the footwell air vents.

218 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 panel design A

Press button± (
page 210).
The indicator lamp on the button
comes on.
AC
OFF
in the display comes on.
The cooling function is switched off.
Climate control panel design B

Press buttonœ (
page 211).
The indicator lamp on the button goes
out.
The cooling function is switched off.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Climate control panel design A

Press button± (
page 210) again.
The indicator lamp on the button goes
out.
AC
OFF
in the display goes out.
Climate control panel design B

Press buttonœ (
page 211) 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.

219 Controls in detail
4-zone automatic climate control*
Residual heat and ventilation (available
on 4-zone automatic 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 210).
REST in the display comes on.
Deactivating

Press buttonT(
page 210).
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
Rear air conditioning
1Left rear center air vent, adjustable
2Right rear center air vent, adjustable
3Thumbwheel for air volume control for
right rear center air vent
4Temperature rocker switch, right
5Display
6Temperature rocker switch, left
7Thumbwheel for air volume control for
left rear center air vent
!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.

229 Controls in detail
Driving systems
1Set current or higher speed
2Set current or lower speed
3Cancel cruise control
4Resume at previously set speedSetting 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, E 500:
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.

230 Controls in detailDriving systemsCanceling 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, E 500:

you step on the brake pedal.


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


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


ESP is in operation or switched off
with the ESP switch (
page 92).


you move the gear selector lever in
position N while driving.
The segments in the multifunction dis-
play 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).

231 Controls in detail
Driving systems
Setting 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 the di-
rection of arrow1.
Slower

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

Briefly push 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, E 500:
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 preset
speed could cause an accident and/or seri-
ous injury to you and others.

239 Controls in detail
Driving systems
Deactivating Distronic
There are several ways to deactivate the
Distronic system:
Briefly tip the cruise control lever in the
direction of arrow3 (
page 236).
or

Step on the brake pedal.
Distronic will be deactivated. The last
speed set will be stored in memory.Distronic deactivates automatically when:


you set the parking brake


you drive slower than 25 mph
(40 km / h)


the ESP is active (
page 89) or you de-
activate the ESP


you move the transmission selector le-
ver into positionN
A signal will sound. The
Distronic off

message appears in the multifunction
display for approximately five seconds.Setting the following distance in
Distronic
You can set the specified following dis-
tance for Distronic by varying the time set-
ting between 1.0 and 2.0 seconds. Using
this time setting and the current speed of
your vehicle, Distronic calculates and sets
the required following distance to the vehi-
cle ahead. The set distance will be shown
in the multifunction display field.
The thumbwheel for making the time set-
ting is located on the lower section of the
center console.
iThe following message will appear in
the multifunction display for approxi-
mately five seconds:
Distronic off
.
The last stored speed is deleted when
you turn off the engine.
Warning!
G
Distronic switches off and releases the
brakes when the vehicle decelerates below
the minimum speed of approximately
25 mph (40 km / h) by operation of the sys-
tem. At that time the driver must apply the
brakes in order to reduce vehicle speed fur-
ther or bring it to a stop.
Warning!
G
It is up to the driver to exercise discretion to
select the appropriate setting given road
conditions, traffic, driver’s preferred driving
style and applicable laws and driving recom-
mendations for safe following distance.