brake light MERCEDES-BENZ GL-Class 2016 X166 Service Manual
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2016, Model line: GL-Class, Model: MERCEDES-BENZ GL-Class 2016 X166Pages: 462, PDF Size: 10.44 MB
Page 299 of 462
Display messagesPossible causes/consequences andMSolutions
$(USA
only)
J(Canada
only)
Check brake fluid
level
There is no tenough brak eflui din th ebrak eflui dreservoir .In
addition ,th e$ (USAonly) or J(Canada only) warnin glamp
lights up in th einstrumen tcluster and awarnin gtone sounds.
GWARNIN G
The brakin geffec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinue drivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XConsult aqualified specialist workshop .
XDo notadd brak efluid. This does no tcorrec tth emalfunction .
#
Check brake pad
wear
The brak epads/lining shav ereached their wear limit.
XVisit aqualified specialist workshop .
G
Inoperative
Oneor mor emain features of th embrace system are malfunc -
tioning.
XHav eth embrace system checke dat aqualified specialist work-
shop.
PRE-SAFE Inopera‐
tiv esee Opera‐
tor's Manual
Importan tfunction sof PRE-SAF E®havefailed. Al lother occupant
safet ysystems ,e.g. air bags ,remain available.
XVisit aqualified specialist workshop immediately.
Display messages29 7
On-board computer and displays
Z
Page 301 of 462
Display messagesPossible causes/consequences andMSolutions
Radar Sensors
Dirty See Opera‐
tor's Manual
At leaston eof th efollowing drivin gsystems or drivin gsafet ysys-
tems is temporarily restricted or inoperative:
RPRE-SAF E®Brake
RActive Lan eKeepin gAssis t
RActive Blind Spot Assis t
If th erada rsensor system in fron tis dirty, Active Blind Spot Assis t
will no tperform acourse-correcting brak eapplication .
Possibl ecauses are:
Rth esensor sin th eradiato rtrim and/o rin th ebumpers are dirty
Rth efunction of th edrivin gsystem and/o rdrivin gsafet ysystem
is impaire ddue to heav yrain or snow.
A warnin gtone also sounds.
Whe nth ecauses state dabov eno longer apply, th edisplay mes -
sage disappears. Al ldrivin gsystems and drivin gsafet ysystems
are operative again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XSwitchof fth eengine.
XClean th esensor sin th efollowing location s (Ypage 380):
Rin theradiato rtrim
Rin th efron tbumper
Rin th erear bumper, particularl yin th emiddle of th erear
bumper
XRestart th eengine.
The display message disap
pears.
6
Restraintsys.mal‐
function Consul t
workshop
The restraintsystem is faulty.
The 6 warnin glamp also lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in th eevent of an accident, may no tbe
triggered .
There is an increase dris kof injury.
XVisit aqualified specialist workshop .
Observ eth eadditional information on restrain tsystems
(
Ypage 44) .
Display messages299
On-board computer and displays
Z
Page 305 of 462
Display messagesPossible causes/consequences andMSolutions
If these conditionsare fulfilled ,th efront-passenger seat can be
occupied again .Whether th ePASSENGER AI RBA GOF Findicato r
lamp remain slit or goe sout depend son how OCS classifie sth e
occupant .
If th econdition sare no tfulfilled ,th esystem is no toperating cor-
rectly.
XVisit aqualified specialist workshop immediately.
Lights
i
Vehicles wit hLE Dbulbs in th eligh tclusters :
The display message fo rth ecorrespondin glamp only appears when all of th eLEDs in th e
lamp hav efailed.
Display messagesPossible causes/consequences and MSolutions
b
Check LeftCorner ‐
ing LightorCheck
Right Cornering
Light
The lef tor right-hand cornering ligh tis defective.
XVisit aqualified specialist workshop .
b
Check LeftLow
Bea morCheck
Right Low Bea m
The leftor right-hand low-beam headlamp is defective.
XChec kwhether you are permitte dto replac eth ebulb yourself
(
Ypage 136).
or
XVisit aqualified specialist workshop .
b
Trailerrighttail
lamp
The lef tor right-hand trailer tai llamp is faulty.
XConsult th emanufacturer' soperating instructions.
b
Traile rlef tindi‐
catoror Traile r
right indicator
The leftor right-hand trailer tur nsignal lamp is defective.
XConsult th emanufacturer' soperating instructions.
b
Traile rbrake lam p
The trailer brak elamp is defective.
XConsult th emanufacturer' soperating instructions.
Display messages30 3
On-board computer and displays
Z
Page 329 of 462
ProblemPossible causes/consequences andMSolutions
!
The yellow ABS warning
lamp is lit while the
engine is running.ABS (Anti-lock Braking System) is deactivated due to a malfunc-
tion. Therefore, BAS (Brake Assist), BAS PLUS, COLLISION PRE-
VENTION ASSIST, ESP
®(Electronic Stability Program), ESP®trailer
stabilization, PRE‑SAFE®, PRE‑SAFE®Brake, HOLD function, hill
start assist, Crosswind Assist, STEER CONTROL, Active Lane
Keeping Assist and Active Blind Spot Assist are also deactivated.
In addition, the ÷andå warning lamps may light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XVisit a qualified specialist workshop.
If the ABS control unit is faulty, there is also a possibility that other
systems, such as the navigation system or the automatic trans-
mission, will not be available.
Warning and indicator lamps in the instrument cluster327
On-board computer and displays
Z
Page 330 of 462
ProblemPossible causes/consequences andMSolutions
!
The yellow ABS warning
lamp is lit while the
engine is running.ABS is temporarily unavailable. Therefore, BAS, BAS PLUS, COL-
LISION PREVENTION ASSIST, ESP®, ESP®trailer stabilization, EBD
(electronic brake force distribution), PRE‑SAFE®,
PRE‑SAFE®Brake, the HOLD function, hill start assist, Crosswind
Assist, STEER CONTROL, Active Lane Keeping Assist and Active
Blind Spot Assist, for example, are also deactivated.
In addition, the ÷andå warning lamps may light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
Possible causes are:
RSelf-diagnosis is not yet complete.
Rthe on-board voltage may be insufficient.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is a risk of an accident.
XCarefully drive a suitable distance, making slight steering move-
ments at a speed above 12 mph (20 km/h).
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XVisit a qualified specialist workshop.
328Warning and indicator lamps in the instrument cluster
On-board computer and displays
Page 331 of 462
ProblemPossible causes/consequences andMSolutions
!
The yellow ABS warning
lamp is lit while the
engine is running.
A warning tone also
sounds.EBD is not available due to a malfunction. Therefore ABS, BAS, BAS
PLUS, ESP®, ESP®trailer stabilization, PRE‑SAFE®,
PRE‑SAFE®Brake, COLLISION PREVENTION ASSIST, HOLD func-
tion, hill start assist, Crosswind Assist, STEER CONTROL, Active
Lane Keeping Assist and Active Blind Spot Assist are also unavail- able.
In addition, the ÷andå warning lamps may light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XVisit a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster329
On-board computer and displays
Z
Page 334 of 462
ProblemPossible causes/consequences andMSolutions
֌
The yellow ESP
®and
ESP®OFF warning
lamps are lit while the
engine is running.
ESP®, BAS, PRE-SAFE®, the HOLD function, hill start assist, Cross-
wind Assist and ESP®trailer stabilization are temporarily unavail-
able.
COLLISION PREVENTION ASSIST, BAS PLUS and
PRE ‑SAFE
®Brake may also have failed.
ATTENTION ASSIST is deactivated.
Self-diagnosis is not yet complete.
GWARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XCarefully drive a suitable distance, making slight steering move-
ments at a speed above 12 mph (20 km/h).
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XVisit a qualified specialist workshop.
332Warning and indicator lamps in the instrument cluster
On-board computer and displays
Page 335 of 462
ProblemPossible causes/consequences andMSolutions
F(USA only)
The red electric parking
brake indicator lamp
flashes or lights up
and/or
!
the yellow warning
lamp for the electric
parking brake lights up.XObserve the additional display messages in the multifunction
display.
6
The red restraint sys-
tem warning lamp is lit
while the engine is run-
ning.The restraint system is faulty.
GWARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XHave the restraint system checked immediately at a qualified
specialist workshop.
For further information about the restraint system, see
(
Ypage 44).
Warning and indicator lamps in the instrument cluster333
On-board computer and displays
Z
Page 379 of 462
Do not remove the SmartKey from the
ignition lock. Do not open the driver's
door or front-passenger door when the
engine is switched off. Otherwise, the
automatic transmission selects park
positionPautomatically and locks the
wheels. You can prevent this by shifting
the automatic transmission to Nbefore-
hand.
RVehicles with KEYLESS-GO:
Do not open the driver's door or front-
passenger door when the engine is
switched off. Otherwise, the automatic
transmission selects park position P
automatically and locks the wheels.
Observe the following to make sure that the
automatic transmission stays in position N:
XMake sure the vehicle is stationary and the
ignition is switched off.
XTurn the SmartKey to position2in the igni-
tion lock (
Ypage 165).
Use the SmartKey instead of the Start/
Stop button on vehicles with KEYLESS-GO.
XDepress and hold the brake pedal.
XShift the automatic transmission to posi-
tion N.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the Smart-
Key in the ignition lock.
You can wash the vehicle in an automatic car
wash from the very start.
If the vehicle is ver y d
irty, pre-wash it before
cleaning it in an automatic car wash.
After using an automatic car wash, wipe off
wax from the windshield and the wiper
blades. This will prevent smears and reduce
wiping noises caused by residue on the wind-
shield.
Washing by hand
In some countries, washing by hand is only
allowed at specially equipped washing bays. Observe the legal requirements in all coun-
tries concerned.
XDo not use hot water and do not wash the
vehicle in direct sunlight.
XUse a soft sponge to clean.
XUse a mild cleaning agent, such as a car
shampoo approved by Mercedes-Benz.
XThoroughly hose down the vehicle with a
gentle jet of water.
XDo not point the water jet directly towards
the air inlets.
XUse plenty of water and rinse out the
sponge frequently.
XRinse the vehicle with clean water and dry
thoroughly with a chamois.
XDo not let the cleaning agent dry on the
paintwork.
When using the vehicle in winter, remove all
traces of road salt deposits carefully and as
soon as possible.
Power washers
GWARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-
edly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
!Always maintain a distance of at least
11.8 in (30 cm) between the vehicle and the
power washer nozzle. Information about
the correct distance is available from the
equipment manufacturer.
Move the power washer nozzle around
when cleaning your vehicle.
Do not aim directly at any of the following:
Rtires
Rdoor gaps, roof gaps, joints, etc.
Relectrical components
Care377
Maintenance and care
Z
Page 380 of 462
Rbattery
Rconnectors
Rlights
Rseals
Rtrim
Rventilation slots
Damaged seals or electrical components
can lead to leaks or failures.
Cleaning the paintwork
!Do not affix:
Rstickers
Rfilms
Rmagnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosive deposits, areas affected
by corrosion and damage caused by inade-
quate care cannot always be completely
repaired. In such cases, visit a qualified spe-
cialist workshop.
XRemove dirt immediately, where possible,
while avoiding rubbing too hard.
XSoak insect remains with insect remover
and rinse off the treated areas afterwards.
XSoak bird droppings with water and rinse
off the treated areas afterwards.
XRemove coolant, brake fluid, tree resin,
oils, fuels and greases by rubbing gently
with a cloth soaked in petroleum ether or
lighter fluid.
XUse tar remover to remove tar stains.
XUse silicone remover to remove wax.
If water no longer forms "beads" on the paint
surface, use the paint care products recom-
mended and approved by Mercedes-Benz.
This is the case approximately every three to
five months, depending on the climate con-
ditions and the care product used.
If dirt has penetrated the paint surface or if
the paint has become dull, the paint cleaner
recommended and approved by Mercedes-
Benz should be used. Do not use these care products in the sun or
on the hood while the hood is hot.
XUse a suitable touch-up stick, e.g. MB
Touch-Up Stick, to repair slight damage to
the paintwork quickly and provisionally.
Matte finish care
!Never polish the vehicle or the light alloy
wheels. Polishing causes the finish to
shine.
!The following may cause the paint to
become shiny and thus reduce the matte
effect:
RVigorous rubbing with unsuitable mate-
rials.
RFrequent use of car washes.
RWashing the vehicle in direct sunlight.
!Never use paint cleaner, buffing or pol-
ishing products, or gloss preserver, e.g.
wax. These products are only suitable for
high-gloss surfaces. Their use on vehicles
with matte finish leads to considerable sur-
face damage (shiny, spotted areas).
Always have paintwork repairs carried out
at a qualified specialist workshop.
!Do not use wash programs with a hot wax
treatment under any circumstances.
Observe these notes if your vehicle has a
clear matte finish. This will help you to avoid
damage to the paintwork due to incorrect
treatment.
These notes also apply to light alloy wheels
with a clear matte finish.
iThe vehicle should preferably be washed
by hand using a soft sponge, car shampoo
and plenty of water.
iUse only insect remover and car shampoo
from the range of recommended and
approved Mercedes-Benz care products.
378Care
Maintenance and care