Depending on
theve hicle's equipment, thera dar
sensors are integrated behind the bumpers
and/or behind thera diator grill. Keep these parts
free of dirt, ice and slush (/ page212). The se n‐
sors must not be co vered, forex ample bybicycle
ra ck s, overhanging loads or sticke rs. Af ter a colli‐
sion, ha vethe function of thera dar sensors
ch ecked at a qualified specialist workshop as
damage (bo thvisible or non-visible) may ha ve
occur redto the bumper or radiator trim. Fu
nction of driving sy stems and driving
saf ety sy stems In
this section, you will find information about the
fo llowing driving sy stems and driving saf ety sys‐
te ms:
R ABS ( Anti-lock braking system)
(/ page 137)
R ASC (Acceleration SkidControl)
(/ page 137)
R BAS (B rake Assist System) (/ page137)
R ESP ®
(Electronic Stability Program)
(/ page 138)
R EBD ( Electronic Brakeforce Distribution)
(/ page 139)
R Active Brake Assi st (/ page 139)
R Cruise co ntrol (/ page 141)
R Active Dis tance Assi stDISTRONIC
(/ page 143)
R Hill start assist
R HOLD function (/ page145)
R Parking Assist PARKTRONIC ( /page 145)
R Rear view camera (/ page147)
R 360° Camera (/ page149)
R ATTENTION ASSIST (/ page151)
R Blind Sp otAssi st (/ page 152)
R Active Lane Keeping Assist (/ page155) Fu
nctions of ABS (Anti-lock Braking Sy stem) Obser
vethe impor tant sa fety guidelines forthe
driving saf ety sy stem.
ABS cont rols the brake pressure in critical situa‐
tions:
R the wheels are pr evented from lo cking when
braking, e.g. during maximum full-s top brak‐
ing or when there is insuf ficient tire traction. R
thesteerability of theve hicle in term s of
ph ysical possibilities is ensured when brak‐
ing.
R ABS is active from speeds of appr ox. 3 mph
(5 km/h). On a slippery road sur face, ABS
inter venes even if you on lybrake gently.
Sy stem limitations
If th ere is a malfunction and theye llow 0025 ABS
wa rning lamp lights up continuously in the instru‐
ment display af terst arting the engine, ABS may
be impaired or inoperative.
If ABS inter venes, you will feel a pulsing in the
brake pedal. The pulsating brake pedal may be an
indication of hazardous road conditions and func‐
tions as a reminder totake extra care while driv‐
ing.
If ABS in terv enes: keep the brake pedal firm ly
depressed until the braking situation has passed.
To car ryout maximum full-s top braking:
dep ress the brake pedal with full forc e. Fu
nction of BAS (Brake Assist Sy stem) &
WARNING Risk of an accident caused by
a malfunction in BAS (Brake Assi stSys‐
te m)
If BA S is malfunctioning, the braking dis tance
in an emergency braking situation is
increased. #
Depress the brake pedal with full force
in emer gency braking situations. ABS
pr eve nts the wheels from locking. BA
S suppo rts yo u with additional braking forc e in
an emer gency braking situation.
If yo u depress the brake pedal quickl y,BA S is
acti vated:
R BAS au tomatically boosts the braking forc e of
th e brakes
R BAS can sho rten the braking dis tance
R ABS pr events the wheels from locking
When youre lease the brake pedal, the brakes
function as usual again. BAS is deactivated. Fu
nctions of ASR (Acceleration Skid Control) ASR can neither
reduce therisk of an accident
nor override the la wsof ph ysics if the driver does
not pay attention when pulling away or accelerat‐
ing. ASR is only an aid. Alw ays adapt your driving Driving and parking
137
Display messages
Possible causes/consequences and 0050 0050Solutions
007A
0025
00E5
Inoperative See Opera-
tor's Manual *
EBD, ABS and ESP ®
are malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be mal‐
functioning. &
WARNING Risk of skidding if EBD, ABS and ESP ®
are mal‐
functioning
If EBD, ABS and ESP ®
are malfunctioning, the wheels can lock
when braking and ESP ®
cann otcar ryout vehicle stabilization.
The steering capability and braking characteristics are thus
se verely impaired. The braking di stance in an emer gency brak‐
ing situation can increase. In addition, other driving saf ety sys‐
te ms are switched off. #
Drive on careful ly. #
Have the brake sy stem checked immediately at a qualified
specialist workshop. #
Drive on carefully. #
Visit a qualified specialist workshop immediately.
00E5 Inoperative See Opera-
tor's Manual *
ESP ®
is malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be mal‐
functioning.
The brake sy stem continues working with the normal ef fect. The
braking dis tance can increase in eme rgency braking situations. &
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabili‐
zation. In addition, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified specialist workshop. #
Continue driving carefully. #
Visit a qualified specialist workshop immediately.
00E5 Currently Unavailable
See Operator's Manual *
ESP ®
is temp orarily una vailable.
Other driving sy stems and driving saf ety sy stems may also be mal‐
functioning. &
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabili‐
zation. In addition, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified specialist workshop. #
Carefully drive some gentle cur ves at abo ve19 mp h (30 km/h)
on a suitable stre tch of road. Display messages and
warning and indicator lamps 281
Display messages
Possible causes/consequences and 0050 0050Solutions #
Ifth e display message does not go out, visit a qualified special‐
ist workshop immediately. Drive carefully when doing so.
0025
00E5
Currently Unavailable
See Operator's Manual *
ABS and ESP ®
are temp orarily una vailable.
Other driving sy stems and driving saf ety sy stems may also be tem‐
porarily una vailable. &
WARNING Risk of skidding if ABS and ESP ®
are malfunc‐
tioning
If ABS and ESP ®
are malfunctioning, the wheels could lock when
braking and ESP ®
cann otcar ryout vehicle stabilization.
The steering capability and braking characteristics are thus
se verely impaired. The braking di stance in an emer gency brak‐
ing situation can increase. In addition, other driving saf ety sys‐
te ms are switched off. #
Drive on careful ly. #
Have ABS and ESP ®
ch ecked immediately at a qualified
specialist workshop. #
Carefully drive some gentle cur ves at abo ve19 mp h (30 km/h)
on a suitable stre tch of road. #
Ifth e display message does not go out, visit a qualified special‐
ist workshop immediately. Drive carefully when doing so.
0025
00E5
Inoperative See Opera-
tor's Manual *
ABS and ESP ®
are malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be mal‐
functioning.
The brake sy stem continues working with the normal ef fect. The
braking dis tance can increase in eme rgency braking situations. &
WARNING Risk of skidding if ABS and ESP ®
are malfunc‐
tioning
If ABS and ESP ®
are malfunctioning, the wheels could lock when
braking and ESP ®
cann otcar ryout vehicle stabilization.
The steering capability and braking characteristics are thus
se verely impaired. The braking di stance in an emer gency brak‐
ing situation can increase. In addition, other driving saf ety sys‐
te ms are switched off. #
Drive on careful ly. #
Have ABS and ESP ®
ch ecked immediately at a qualified
specialist workshop. #
Continue driving carefully. #
Visit a qualified specialist workshop immediately. 282
Display messages and warning and indicator lamps
Display messages
Possible causes/consequences and 0050 0050Solutions #
Check the tires.
0077 Check Tires *T
he pressure in one or more tires has fallen significantl y.The wheel
position is shown. &
WARNING Risk of an accident due toinsuf ficient tire pres‐
sure
Ti re pressures that are too low pose thefo llowing hazards:
R The tires may bur st, especially as the load and vehicle speed
increase.
R The tires may wearexc essively and/or une venly, which may
greatly impair tire traction.
R The driving characteristics, as well as steering and braking,
may be greatly impaired.
Yo u could then lose cont rol of theve hicle. #
Obser vethere commended tire pressu re. #
Adjust the tire pressure if necessar y. #
Stop in accordance with the tra ffic conditions. #
Check the tire pressure (/ page 234) andthe tires.
0077 Please Correct Tire Pres-
sure *T
he pressure in at least one tire is too low or the pressures of the
individual tires deviate too much from each other. #
Check the tire pressure, and add air if necessar y. #
When the tire pressure has been set cor rectl y,re-sta rt the tire
pressure monitor (/ page240).
Tire Pressure Monitor
Inoperative *T
he tire pressure monitor is malfunctioning. #
Visit a qualified specialist workshop. Key
Display messages
Possible causes/consequences and 0050 0050Solutions
00AF
Don't Forget Your Key *T
his message reminds you not tolea veyour key in theve hicle. #
Take theke y with you when youget out of theve hicle.
00AF Place the Key in the
Marked Space See Oper-
ator's Manual *K
eydetection is malfunctioning. #
Change theke y's position in theve hicle. #
Start theve hicle with theke y in the slot(/ page104).
00AF *T
hekey is not de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit chthe engine off:
R You can no lon gerst art the engine. Display messages and
warning and indicator lamps 291