
If NHTSAreceive s similar complaints, it may
open an in vestigation, and if it finds that a saf ety
defect exists in a groupof vehicles, it may order
a re call and remedy campaign. Ho wever,NHT SA
cannot become in volved in individual problems
between you, your dealer, or Mercedes-Benz
US A,LLC.
To contact NHT SA,yo u may call theVe hicle
Saf etyHotlin eto ll-f ree at 1-888-327-4236
(TT Y:1-800-424-9 153) (inside the USA); go to
http://www.safercar.gov; or write to:Ad minis‐
trator, NHT SA, 400 Se venth Street,SW .,Wa sh‐
ington, DC 20590, US A.
Fu rther information on vehicle saf etycan be
fo und at: http:/ /www.safercar.g ov
LimitedWarranty
* NO
TEDama getotheve hicle arising
from culpable violation of these operat‐
ing instructions.
Damage totheve hicle can arise from culpa‐
ble violation of these operating instructions.
This damage is not co vered either bythe
Mercedes-Benz Limited Warranty or bythe
New Vehicle or Used Vehicle Warrant y.
#Follow the instructions in this manual
on proper operation of your vehicle as
we ll as on possible vehicle damage.
QR code forre scue card
The QR code is secured in the fuel filler flap and
on the opposite side on the B-pillar. In theeve nt
of an accident, rescue services can use the QR
code toquickly find the appropriate rescue card
fo ryo ur vehicle. The cur rent rescue card con‐
ta ins the most impor tant information about your
ve hicle in a compact form , e.g. thero uting of the
electric lines.
Fu rther information can be obtained at http://
www.mercedes-benz.de/qr-code.
Ve hicle data storage
Data acquisition
A wide range of electronic components in your
ve hicle contain data memories.
These data memories temp orarily or perma‐
nently store tech nical information about:
RThe vehicle's operating state
REvents
RMalfunctions
In general, thete ch nical information documents
th est ate of a component part, a module, a sys‐
te m or the sur roundings.
These include, forex ample:
ROperating conditions of sy stem components.
Fo rex ample, fluid leve ls.
RThe vehicle's status messages and those of
its individual components. Forex ample, the
number of wheel revo lutions/speed, deceler‐
ation, lateral acceleration, accelerator pedal
position.
26 General no tes

RMalfunctions and defects in important sys‐
te m components. Forex ample, lights,
brakes.
RVe hicle reactions and operating conditions in
special driving situations. Forex ample, air
bag deployment, inter vention of stability con‐
trol sy stems.
RAmbient conditions. Forex ample, outside
te mp erature.
This data is of an exclusively tech nical natu re
and can be used to:
RAssist in detecting and rectifying malfunc‐
tions and defects.
RAnalyze vehicle functions, e.g. af ter an acci‐
dent.
ROptimize vehicle functions.
The data cannot be used totrace theve hicle's
mo vements.
When your vehicle is serviced, tech nical informa‐
tion can be read from theeve nt da tamemory
and malfunction data memor y.Services include,
forex ample:
RRe pair services
RService processes
RWa rranty cases
The vehicle is read out byemplo yees of the
service network (including the manufacturer)
using special diagnostic devices. You can obtain
more information there, if requ ired.
Af ter a malfunction has been rectified, the infor‐
mation is dele ted from the malfunction memory
or is continually overwritten.
When operating theve hicle, situations are con‐
ceivable in which this tech nical da ta, in connec‐
tion with other information (if necessar y,afte r
consultation wi than authorized expert), could be
traced toa person.
Examples include:
RAc
cident reports
RDamage totheve hicle
RWi tness statements
Fu rther additional functions that ha vebeen con‐
tractually agreed upon with the cus tomer all ow cer
tain vehicle data tobe con veye dby theve hi‐
cle as well. The additional functions include, for
ex ample, vehicle location in case of an emer‐
ge ncy.
COMAND/mbrace
If th eve hicle is equipped with COMAND or
mbrace, additional data about theve hicle's oper‐
ation, the use of theve hicle in cer tain situations,
and the location of theve hicle may be compiled
th ro ugh COMAND or the mbrace sy stem.
Ad ditional information can be found in the multi‐
media sy stem section and/or the mbrace Term s
and Conditions.
Event data recorders
This vehicle is equipped with an event da ta
re corder (EDR). The main purp ose of an EDR is
to record, in cer tain crash or near crash-like sit‐
uations, such as an air bag deployment or hitting
a ro ad obs tacle, data which will assist in under‐
st anding how a vehicle's sy stems per form ed.
The EDR is designed torecord data related to
ve hicle dynamics and saf etysy stems for a short
period of time, typically 30 seconds or less.
General no tes 27

WhentheATA system is armed, indicator lamp
1 flashes.
The ATA sy stem is automatically deactivated:
RAf ter unlocking theve hicle with the Smart‐
Ke y.
RAfter pressing thest art/ stop button with the
SmartK eyinside theve hicle.
RAfter unlocking theve hicle using KEYLESS-
GO.
% When the mbrace service (
→page 277) is
active and the alarm stay s on for more than
30 seconds, a message is automatically sent
to the Cus tomer Assis tance Center.
Deacti vating the ATA(anti-theft alarm sys‐
te m) ala rm
#Pressthe%, &orp button on the
SmartK ey.
or
#Press thest art/ stop button (the SmartK eyis
inside theve hicle).
St opping the ala rmusing KEYLESS-GO
#Grasp the outside door handle (with the
SmartK eyoutside theve hicle).
Opening and closing 79

Starting theve hicle using a smartphone
&
WARNING Risk of crushing or entrap‐
ment due tounin tentional starting of the
engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during
service or maintenance work.
#Alw ays secure the engine against unin‐
te ntional starting before car rying out
maintenance or repair work.
Re quirementsRPark position jis selected.
RThe anti- theft alarm sy stem is not armed.
RThe panic alarm is not armed.
RThe hazard warning lights are switched off.
RThe engine hood is closed.
RThe doors are closed and loc ked.
RThe windo wsand sliding sunro of are closed.
#Start theve hicle using the smartphone:
RAf tereve ryvehicle start, the engine runs for
te n minu tes.
RYo u can car ryout a maximum of two consec‐
utive starting attem pts.
RYo u can stop theve hicle again at any time.
RFu rther information can be found in the
smartphone app.
Securing the engine against starting before
car rying out maintenance or repair work:
#Switch on the hazard warning lights.
or
#Un lock the doors.
or
#Open a side window or the sliding sunroof.
St arting theve hicle in emer gency operation
mode
If th eve hicle cannot be star ted, the 3 O D F H W K H
. H \ L Q W K H 0 D U N H G 6 S D F H 6 H H 2 S H U D W R U
V 0 D Q X D O
display message appears in the multifunction
displa y.
#Make sure that mar ked space 2is em pty.
#Re mo veSmartK ey1 from theke yring.
#Place Smart Key1 in mar ked space 2.
The vehicle will start af ter a short while.
If yo ure mo veSmartK ey1 from mar ked
space 2the engine continues running. For
fur ther vehicle starts ho wever,SmartK ey1
must be located in mar ked space 2during
th e entire journe y.
#Have SmartK ey1 checked at a qualified
specialist workshop.
If th eve hicle does not star t:
#Lea veSmartK ey1 in mar ked space 2.
130
Driving and pa rking

Standby mode (extension of the star ter bat‐
te ry 's period out of use)
St andby mode function
If standby mode is activated, theve hicle can be
par kedfo r an extended pe riod of time without
losing po wer.
St andby mode is characterized bythefo llowing:
Rth est ar ter battery is preser ved.
Rthe maximum period out of use is displa yed
in the multimedia sy stem displa y.
Rfunctions such as interior pr otection or the
to w- aw ay alarm are not available.
Rthe connection toonline services is inter rup‐
te d.
If th efo llowing conditions are fulfilled, standby
mode can be activated or deactivated using the
multimedia sy stem:
Rth e engine is switched off.
RThe ignition is switched on.
Exceeding theve hicle's displa yed period out of
use may cause incon venience, i.e. it cannot be guaranteed
that thest ar ter battery will reliably
st art the engine.
The star ter battery must be charge dfirs t in the
fo llowing situations:
Rth eve hicle's period out of use must be
ex tended.
Rth e % D W W H U \ &