2018 MERCEDES-BENZ S CLASS Owners Manual

Sy st em limitations
The de te ction capability of Blind Spot Assi st can
be re st ri cted in th e fo llowing situations:R
There is dirt on th e sensors or th e sensors
are obscured. R
When th ere is poor visibility, e.g. due to fo g,
heavy ra in, snow or spr ay .R
If nar row ve hicles are within th e monitoring
ra nge, e.g. bicycles.
Wa rn ings may be issued in er ro r when driving
close to crash ba rr iers or similar solid lane bor‐
ders. Wa rn ings may be inter ru pte d when driving
alongside long ve hicles, fo r ex ample truc ks , fo r a
prolonged time.
Blind Spot Assist is not operational when re ve rs e
ge ar is engaged.
Fu nction of braking applications (Active
Blind Spot Assist)
If Ac tive Blind Spot Assi st de te cts a ri sk of a side
impact in th e monitoring ra nge, a cou rs e-cor‐
re cting brake application is car ri ed out. This is
designed to help yo u av oid a collision. The course-cor re cting brake application is av aila‐
ble in th e speed ra nge between appr ox imately
20 mp h (30 km/h) and 12 5 mp h (200 km/h).
q
WA RNING Risk of accident despi te
brake application of Ac tive Blind Spot
Assi st
A cou rs e-co rr ecting brake application cann ot
alw ay s pr eve nt a collision.

If a course-cor re cting brake application occu rs ,
th e re d wa rn ing lamp fl ashes in th e outside mir‐
ro r and a wa rn ing to ne sounds. In addition, a dis‐
pl ay 1 indicating th e danger of a side collision
appears in th e multifunction displa y.
In ra re cases, th e sy st em may make an inappro‐
priate brake application. This brake application
may be inter ru pte d at any time if yo u st eer
slightly in th e opposite direction or accelera te .
Sy st em limitations
Either a course-cor re cting brake application
appropria te to th e driving situation, or none at
all, may occur in th e fo llowing situations:R
Ve hicles or obs ta cles, e.g. crash ba rr iers, are
located on bo th sides of yo ur ve hicle.R
A ve hicle approaches to o closely on th e side.R
Yo u ha ve adop te d a sporty driving st yl e with
high cornering speeds. R
Yo u br ake or accelerate sign if icantl y.R
A driving sa fe ty sy st em inter ve nes, su ch as
ESP ®
or Ac tive Brake Assi st .R
ESP ®
is deacti va te d. R
A loss of tire pressure or a defective tire is
de te cted.
Ac tivating or deactivating Blind Spot Assi st
or Ac tive Blind Spot Assi st
Multimedia sy st em:

Yo u are wa rn ed by vibration pulses in th e st eer‐
ing wheel in th e fo llowing circums ta nces:R
Ac tive Lane Ke eping Assist de te cts lane
markings. R
A front wheel passes ov er th e lane markings.
Whe th er a wa rn ing is issued and when th is
occurs also depends on th e selected sensitivity
setting (s ta nda rd or adaptive).
If yo u fa il to adapt yo ur drivin g st yl e, Ac tive Lane
Ke eping Assist can neither re duce th e ri sk of an
accident nor ove rr ide th e la ws of ph ys ics. It can‐
not ta ke into account ro ad, we ather or traf fi c
conditions. Ac tive Lane Ke eping Assist is only an
aid. Yo u are re sponsible fo r th e dis ta nce to th e
ve hicle in front, fo r ve hicle speed, fo r braking in
good time and fo r st ay ing in lane.
Ve hicles with Lane Tr acking pac ka ge : If th e
lane markings are solid lines and yo u do not
re act to th e wa rn ing, a lane-cor re cting brake
application can bring th e ve hicle back into th e
original lane.
Ve hicles with Driving Assistance pac ka ge or
Driving Assistance Plus pa ck age: If yo u do not re act to th e wa rn ing, a lane-cor re cting brake
application can bring th e ve hicle back into th e
original lane. In th e case of a broken lane mark‐
ing being de te cted, a brake application will only
be made if a ve hicle has been de te cte d in th e
adj
acent lane. Oncoming ve hicles, ove rt aking
ve hicles and ve hicles in adjacent lanes can be
de te cted.
The brake application is av ailable in th e speed
ra nge between 40 mp h (60 km/h) and 12 0 mp h
(200 km/h).
If a lane-cor re cting brake application occu rs , dis‐
play 1 appears in th e multifunction displa y. Sy st em limitations
No lane-cor re cting brake application occu rs in
th e fo llowing situations: R
Yo u clear ly and actively st eer, brake or accel‐
erate. R
Yo u ha ve switched on th e turn signal indica‐
to r. R
A driving sa fe ty sy st em inter ve nes, su ch as
ESP ®
, Ac tive Brake Assi st or Ac tive Blind
Spot Assi st . R
Yo u ha ve adop te d a sporty driving st yl e with
high cornering speeds or high ra te s of accel‐
eration. R
ESP ®
is deactivated. R
If a loss of tire pressure or a defective tire
has been de te cted and displ ay ed.
The sy st em may be impaired or may not function
in th e fo llowing situations: R
There is poor visibilit y, e.g. due to insuf fi cient
illumination of th e ro ad, high ly va ri able shade
conditions, or due to ra in, sno w, fo g or heavy
spr ay . Driving and pa rk ing 24 1

R
There is gl are, e.g. from oncoming traf fi c, th e
sun or re fl ections.R
There is dirt on th e windshield in th e vicinity
of th e multifunction camera or th e camera is
fo gged up, damaged or obscured.R
No or se ve ra l, unclear lane markings are
present fo r one lane, e.g. in a construction
area. R
The lane markings are wo rn , dark or co ve re d.R
The dis ta nce to th e ve hicle in front is to o
small and th e lane markings th us cannot be
de te cted.R
The lane markings ch ange qu ickl y, e.g. lanes
branch off, cross one ano th er or mer ge .R
The ro ad is ve ry nar row and winding.
Ve hicles with Driving Assistance pac ka ge or
Driving Assistance Plus pa ck age: Ac tive Lane
Ke eping Assist uses ra dar sensors to monitor
se ve ra l areas around th e ve hicle. If th e ra dar
sensors in th e re ar bumper are dirty or co ve re d
with sn ow , th e sy st em may be impaired or may
not function. If an obs ta cle in th e lane in which yo u are drivin g has been de te cted, no lane-cor‐
re cting brake application occu rs .
Ac tivating Ac tive Lane Ke eping Assist
q
WA RNING Risk of accident despi te
Ac tive Lane Ke eping Assist wa rn ing
A lane-cor re cting brake application cannot
al wa ys bring th e ve hicle back into th e origi‐
nal lane.

Instrument Display ove rv iew
q
WA RNING Risk of accident due to an
instrument display malfunction
If th e instrument display has fa iled or mal‐
functioned, yo u cannot re cognize function
re st ri ctions applying to saf et y re le va nt sys‐
te ms.
The operating saf et y of yo ur ve hicle may be
impaired.

q
WA RNING Danger of bu rn s when open‐
ing th e hood
If yo u open th e hood when th e engine has
ove rh eated or during a fi re in th e engine
compartment, yo u could come into contact
wit h hot ga ses or ot her escaping operating
fl uids.

Yo u must obse rv e th e legal requ irements fo r th e
country in whi ch yo u are cur re ntly driving when
operating th e on-board computer.