Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-
tion function
Ractivate the "Windshield defrosting" function
briefly, if required
Climate control regulates the temperature and
air humidity in the vehicle interior. The interior
filter cleans the air, thus improving the interior
climate.
The cooling with air dehumidification function is
only available when the engine is running. Opti-
mum climate control is only achieved with the
side windows closed.
iVentilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 78). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
iThe integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. A clogged filter reduces the
amount of air supplied to the vehicle interior.
Depending on the operating conditions and
environmental influences, the interval for
replacing the filter may be shorter than speci-
fied.
iIt is possible that the blower may be activa-
ted automatically 60 minutes after the engine
has been switched off depending on various
factors, e.g. the outside temperature. The
vehicle is then ventilated for 30 minutes to dry
the climate control system.
Control panel for dual-zone automatic climate control
:Sets the temperature, left (Ypage 105)
;Sets the air distribution (Ypage 105)
=Sets the airflow (Ypage 106)
Activates/deactivates climate control (
Ypage 104)
?Sets climate control to automatic (Ypage 105)
ADefrosts the windshield (Ypage 106)
BCalls up the climate control menu of the multimedia system (Ypage 212)
CSwitches the rear window defroster on/off (Ypage 107)
Overview of climate control systems103
Climate control
Displaying service messages
XSwitchon th eignition .
XUseò on thesteerin gwhee lto cal lup th e
list of menus.
XPress 9or: on thesteerin gwhee lto
selec tth eServic emenuand confirm wit h
a.
XPress 9or: on thesteerin gwhee lto
selec tth eASSYST PLU Ssubmenuand con-
fir m wit ha.
The servic edue dat eappears in th emulti-
function display.
Information about Service
Resetting th eASSYS TPLUS service
interva ldisplay
!If th eASSYST PLU Sservic einterval display
has bee ninadvertentl yreset ,this setting can
be correcte dat aqualified specialis twork-
shop.
Hav eservic ewor kcarrie dout as described in
th eMaintenance Booklet .Thi smay otherwise
lead to increase dwear and damage to th e
major assemblies or th evehicle.
A qualified specialis tworkshop ,e.g. an author -
ized Mercedes-Ben zCenter, will reset th e
ASSYST PLU Sservic einterval display after th e
servic ewor khas bee ncarrie dout .You can also
obtain further information on maintenance
work, fo rexample.
Specia lservice requirement s
The specifiedmaintenance interval take sonly
th enormal operation of th evehicle into
account. Under arduous operatin gcondition sor
increase dload on th evehicle, maintenance
wor kmus tbe carrie dout more frequently, fo r
example:
RRegular city drivin gwit hfrequent intermedi-
at estops
RIf th evehicle is primarily used to trave lshort
distances
RUse in mountainous terrain or on poo rroad
surfaces
RIf th eengin eis ofte nlef tidling fo rlon gperiods
RIn racetrac kmode Under these or similar conditions, have, fo
r
example, th eair filter, engin eoil and oil filte r
replaced or changed more frequently. Under
arduous operatin gconditions, th etires mus tbe
checke dmore often. Further information can be
obtained at aqualified specialis tworkshop ,e.g.
an authorized Mercedes-Ben zCenter.
iIn racetrac kmode, th evehicle is subjec tto
higher loads, meaning that additional main -
tenance wor kis required. If you plan race-
track use, consult aqualified specialis twork-
sho pfirst .Mercedes-Ben zrecommends that
you use an authorized Mercedes-Ben zCente r
fo rthis purpose.
Drivin gabroad
An extensive Mercedes-Ben zServic enetwor kis
also available in other countries. You can obtain
further information from any authorized
Mercedes-Ben zCenter.
Car e
General notes
HEnvironmental not e
Dispose of empty packagin gand cleanin g
cloths in an environmentally responsible man -
ner.
!Whe ncleanin gyour car ,do no tuse:
Rdry, coars eor har dcloths
Rabrasiv ecleanin gagents
Rsolvents
Rcleanin gagents containin gsolvents
Do no tscrub .
Do no ttouch th esurfaces and films wit hhar d
objects ,e.g. rings or ic escrapers .Otherwise ,
you may scratch or damage th esurfaces and
films .
!Do no tpar kyour vehicle fo r alon gperiod of
time directl yafter cleaning, particularly after
cleanin gth ewhee lrim wit hwhee lcleaner.
Wheel cleaner can lead to th eincrease dcor-
rosio nof th ebrake discs and pads .Therefore,
drive fo r afew minutes after cleaning. By
heatin gup th ebrakes, th ebrake discs and
pads dry. The vehicle can then be parke dfo r a
lon gperiod of time.
240Care
Maintenance and care
Engine oil
General notes
!Do not use engine oil or an oil filter with
specifications deviating from those expressly
required for the prescribed service intervals.
Do not change the engine oil or oil filter in
order to set replacement intervals longer than those prescribed. This could otherwise cause
damage to the engine or exhaust gas after-
treatment.
Follow the instructions on the service interval
display for changing the engine oil. This could
otherwise cause damage to the engine or
exhaust gas aftertreatment.
When handling engine oil, observe the important
safety notes on service products (
Ypage 286).
The engine oils are matched to the performance
of Mercedes-Benz engines and service intervals.
You should therefore only use engine oils and oil
filters that are approved for vehicles with main- tenance systems.
For a list of approved engine oils and oil filters,
consult an authorized Mercedes-Benz Center.
Or visit the website
http://bevo.mercedes-benz.com.
The table shows which engine oils have been
approved for your vehicle.
MB-Freigabe or MB-Approval
All models229.5, 229.51
iMB approval is indicated on the oil contain-
ers.
Filling capacities
The following values refer to an oil change
including the oil filter.
Capacity
All models7.4 US qt (7.0l)
Additives
!Do not use any additives in the engine oil.
This could damage the engine.
Brake fluid
GWARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
Comply with the important safety notes for ser-
vice products when handling brake fluid
(
Ypage 286).
Only use brake fluid approved by Mercedes-
Benz in accordance with MB-Freigabe or MB-
Approval 331.0.
Information about approved brake fluid can be
obtained at any qualified specialist workshop or on the Internet at
http://bevo.mercedes-benz.co m.
iHave the brake fluid regularly replaced at a
qualified specialist workshop in accordance
with the replacement intervals and the
replacement confirmed in the service report.
Service products and filling capacities289
Technical data
Z