2016 MERCEDES-BENZ C CLASS lights

Aut oma tic engine startThe automatically switched-off internal combus -
tio n engin e start s automatically in certai n situa-
tions , if:R
th e power demand from th e driver via th e
accelerato r pedal is greate r than th e electric
motor alon e can provideR
th e driver switches to driv e program S or MR
th e condition of charge of th e high-voltage
battery has reached th e lower limitR
th e settings of th e automatic climat e control
require it, e.g. at external temperatures abov e
30 †
Over ru n mod eIn overrun mode, th e combustio n engin e is
switched off and is disconnected from th e driv e
train. The electric motor: R
generates low thrust , whic h correspond s to
th e overrun mod e of an active combustio n
engin eR
function s as a generator and produce s th e
necessary energ y for th e auxiliary consumer s
and charge s th e high-voltage battery
Ove rrun mod e is available in driv e program E
below 16 0 km/h.
In driv e program E , after th e accelerato r pedal
has been released th e coasting characteristic s
of th e vehicl e are adapted to th e traffic condi-
tions . Further information about th e haptic
accelerato r pedal ( Y
page 230).
Route-based energy management Fo r route-based energ y management, th e sys-
te m factors in information about th e expecte d
rout e when rout e guidance is active.
The information on th e rout e is provide d by th e
multimedia system and includes th e following:R
road categories R
spee d limitation sR
dat a on downhill gradients
The use of electric energ y is automatically opti-
mally distributed from th e beginning to th e en d
of th e journey, usin g information about th e
route. The distribution is pre-emptive and takes
int o consideration :R
th e sections of th e journey aheadR
th e energ y consumption on th e whole rout e The condition of charge of th e high-voltage bat -
tery is thus systematically controlled. In addi-
tion, th e control function takes int o accoun t
that: R
th e fuel saving s throug h th e use of electrical
energ y can vary, depending on th e rout e (e.g.
urban , interurban or highway) R
th e use of electrical energ y is held available in
particular for electric operation (e.g. urban
routes)
The vehicl e thus automatically select s th e opti-
mum driving mod e for th e respectiv e sectio n of
th e route.
Route-based energ y managemen t is available
under th e followin g conditions:R
driv e program E is selected R
HYBRID driving mod e is selectedR
active rout e guidance is activated R
suitable map dat a is available
When route-based energ y managemen t is in
operation , th e area in fron t of th e vehicl e is
shown as green in th e multifunction display.
Parking X
Apply th e electric parking brake.
The red $ indicator lamp in th e instrumen t
cluste r lights up. X
Use th e DIRECT SELECT leve r to shif t th e
automatic transmission to P .X
Switch th e ignition off .
The READY indicator in th e instrumen t cluste r
goes out .
Further information on parking and switching off
th e internal combustio n engin e ( Y
page 177).232
PLUG ‑ IN HYBRID operation
Driving and parking

X
Using d or c , select the Daytime
Running Lights function.
If the Daytime Running Lights function has
been switched on, the cone of light and the

Display messages
Possible causes/consequences and P Solutions
The yellow $ warning lamp and th e red I (US A only) or $
(Canada only) indicator lamp ligh t up.
The electric parking brak e is malfunctioning .
To release: X
Switc h off th e ignition and tur n it bac k on .X
Releas e th e electric parking brak e manually.
or X
Releas e th e electric parking brak e automatically ( Y
page 178).
If th e electric parking brak e still canno t be released:X
Do no t drive on .X
Consult a qualified specialist workshop .
The red I (US A only) or $ (Canada only) indicator lamp flashes
and th e yellow $ warning lamp lights up.
The electric parking brak e is malfunctioning .
To release: X
Switc h off th e ignition and tur n it bac k on .X
Releas e th e electric parking brak e manually.
To apply : X
Switc h off th e ignition and tur n it bac k on .X
Apply th e electric parking brak e manually.
If th e red I (US A only) or $ (Canada only) indicator lamp con-
tinue s to flash: X
Do no t drive on .X
Secur e th e vehicl e against rollin g away ( Y
page 380).X
Shift th e transmission to position P .X
Turn th e fron t wheels toward s th e curb.X
Consult a qualified specialist workshop .Display messages 25 9
On-board computer and displays Z

Display messages
Possible causes/consequences and P Solutions
The yellow $ warning lamp lights up. The red I (US A only)
or $ (Canada only) indicator lamp flashes for about te n seconds
after th e electric parking brak e has been applie d or released. It then
goe s out or remain s lit .
The electric parking brak e is malfunctioning .X
Switc h off th e ignition and tur n it bac k on .X
Apply th e electric parking brake.
If it is no t possibl e to engage th e electric parking brake:X
Shift th e transmission to position P .X
Visit a qualified specialist workshop .
If it is no t possibl e to release th e electric parking brak e manually:X
Releas e th e electric parking brak e automatically ( Y
page 178).
If th e electric parking brak e still canno t be released:X
Consult a qualified specialist workshop .
The yellow $ warning lamp lights up. If you manually apply or
release th e electric parking brake, th e red I (US A only) or $
(Canada only) indicator lamp flashes .
The electric parking brak e is malfunctioning . It is no t possibl e to apply
th e electric parking brak e manually.X
Shift th e selector lever to P , as th e electric parking brak e is no t
applie d automatically. X
Visit a qualified specialist workshop .
If it is no t possibl e to release th e electric parking brak e manually:X
Releas e th e electric parking brak e automatically ( Y
page 178).
I (USA
only)
$ ( Canada
only)
Parkin g Brake Inop‐
erativ e The yellow $ warning lamp lights up. The red I (US A only)
or $ (Canada only) indicator lamp flashes for about te n seconds
after th e electric parking brak e has been applie d or released. It then
goe s out or remain s lit .
The electric parking brak e is malfunctioning , e.g. because of over-
voltag e or undervoltage. X
Remove th e caus e for th e overvoltage or undervoltage, e.g. by
charging th e battery or restarting th e engine.X
Engage or release th e electric parking brake.
If it remain s impossible to apply or release th e electric parking brake:X
Switc h off th e ignition and tur n it bac k on .X
Engage or release th e electric parking brake.
If th e electric parking brak e still canno t be released:X
Consult a qualified specialist workshop .
If th e electric parking brak e still canno t be applied:X
Visit a qualified specialist workshop .260
Display messages
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
The yellow $ warning lamp lights up and th e red I (US A only)
or $ (Canada only) indicator lamp flashes .
It is no t possibl e to apply th e electric parking brak e manually.X
Shift th e transmission to position P .X
Visit a qualified specialist workshop .
' (USA
only)
M ( Canada
only)
Check Brake Fluid
Level There is no t enough brak e flui d in th e brak e fluid reservoir .
In addition , th e ' (US A only) or M (Canada only) warning lamp
lights up in th e instrumen t cluste r and a warning tone sounds.
G WARNIN G
The braking effec t may be impaired.
There is a ris k of an accident.X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions. Do no t continu e drivin g
under any circumstances. X
Secur e th e vehicl e against rollin g away ( Y
page 177).X
Consult a qualified specialist workshop .X
Do no t add brak e fluid . This does no t correc t th e malfunction .
& Check Brake Pad Wea r The brak e pads/linings hav e reached their wear limit.
US A only: th e ' red brak e system warning lamp is lit while th e
engin e is running. X
Visit a qualified specialist workshop .
S Inoperative On e or mor e main features of th e mbrace system are malfunctioning .X
Visit a qualified specialist workshop .
Collision Preven ‐
tio n Assist Plu s
Currently Unavaila‐
ble See Operator' s
Manual COLLISION PREVENTION ASSIST PLU S is temporarily no t operational.
Possibl e causes are: R
th e radar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti c radiation emitted by nearby TV or radi o station s or
other source s of electromagneti c radiation .R
th e system is outside th e operating temperature range.R
th e on-boar d voltag e is to o low.
Whe n th e causes state d abov e no longer apply, th e display message
disappears.
COLLISION PREVENTION ASSIST PLU S is operational again .
If th e display message does no t disappear :X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 177).X
Restart th e engine. Display messages 26 1
On-board computer and displays Z

Display messages
Possible causes/consequences and P Solutions
Radar Sensor s Dirty
See Operator' s Man ‐
ual At least on e of th e followin g drivin g systems or drivin g safet y systems
is temporarily restricted or inoperative: R
PRE-SAF E ®
PLU SR
PRE-SAF E ®
BrakeR
COLLISION PREVENTION ASSIST PLU SR
Active Lan e Keepin g Assis tR
Active Blind Spot Assis tR
DISTRONI C PLU S wit h Steering Assis t and Stop&Go Pilo t
If th e radar sensor system in fron t is dirty, Active Blind Spot Assis t will
no t perfor m a course-correcting brak e application .
Possibl e causes are: R
th e sensor s in th e radiato r trim and/o r in th e bumpers are dirtyR
th e function of th e drivin g system or drivin g safet y system is
impaire d due to heav y rain or snow
A warning tone also sounds.
Whe n th e causes state d abov e no longer apply, th e display message
disappears. Al l drivin g systems or drivin g safet y systems are operative
again .
If th e display message does no t disappear :X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 177).X
Switc h off th e engine.X
Clean th e sensor s in th e followin g location s ( Y
page 339):R
in th e radiato r trimR
in th e fron t bumper R
in th e rear bumper, particularly in th e middle of th e rear bumperX
Restart th e engine.
The display message disappears.
u SRS Malfunction Ser ‐
vic e Required The restrain t system is faulty. The u warning lamp also lights up in
th e instrumen t cluster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.
Fo r further information about th e restrain t system, see ( Y
page 46) .Display messages 26 3
On-board computer and displays Z

Display messages
Possible causes/consequences and P Solutions
u Front Lef t Malfunc‐
tio n Servic e
Required or Front
Right Malfunction
Servic e Required The restrain t system has malfunctioned at th e fron t on th e lef t or right .
The u warning lamp also lights up in th e instrumen t cluster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.
u Rea r Lef t Malfunc‐
tio n Servic e
Required or Rea r
Right Malfunction
Servic e Required The rear left-han d or right-hand restrain t system has malfunctioned.
The u warning lamp also lights up in th e instrumen t cluster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.
u Rea r Center Malfunc‐
tio n Servic e
Required The rear center restrain t system has malfunctioned. The u warning
lamp also lights up in th e instrumen t cluster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.
u Lef t Sid e Curtai n
Airbag Malfunction
Servic e Required or
Right Sid e Curtai n
Airbag Malfunction
Servic e Required There is a malfunction in th e left-han d or right-hand window curtai n air
bag. The u warning lamp also lights up in th e instrumen t cluster.
G WARNIN G
The lef t or right window curtai n air bag may either be triggered unin-
tentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.264
Display messages
On-board computer and displays

Display messages
Possible causes/consequences and P SolutionsX
Visit a qualified specialist workshop immediately.
Fo r further information about th e Occupant Classification System, see
( Y
page 54).
Lights Display messages
Possible causes/consequences and P Solutions
I Check Lef t Low Bea m
(Example) The correspondin g bulb is faulty.X
Visit a qualified specialist workshop .
or X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 122).
i LE D ligh t sources: th e display message for th e correspondin g
lamp only appear s when all th e LEDs in th e lamp hav e failed.
I Active Headlamps
Inoperative The active ligh t function is faulty.X
Visit a qualified specialist workshop .
I Malfunction See
Operator’ s Manual The exterio r lighting is defective. X
Visit a qualified specialist workshop .
I Aut o Lam p Function
Inoperative The ligh t sensor is faulty. X
Visit a qualified specialist workshop .
I Switch Off Lights You leav e th e vehicl e and th e lights are switched on . A warning tone
also sounds. X
Turn th e ligh t switch to th e X position .
I Switch On Headlamps You are drivin g wit h low-beam headlamp s switched off .X
Turn th e ligh t switch to th e X or X position .Display messages 26 7
On-board computer and displays Z