brakes Citroen GRAND C4 PICASSO RHD 2016 2.G Owner's Manual

122
When towing
Distribution of loads
F Distribute  the   load   in   the   trailer   so   that   the h
eaviest   items   are   as   close   as   possible   to t

he   axle   and   the   nose   weight   approaches   the
 m

aximum   permitted   without   exceeding   it.
Air
  density   decreases   with   altitude,   thus  
r

educing   engine   per formance.   Above  
1 0

00 metres,   the   maximum   towed   load   must  
b

e   reduced   by   10 %   for   every   1 000   metres   of  
al

titude.
Side wind
F Take   into   account   the   increased   sensitivity  t
o   side   wind.
For
  more   information   on   Weights
, refer
to   the   corresponding   section.
The   rear   parking   sensors   will   be  
d

eactivated   automatically   to   avoid   the  
a

udible   signal   if   a   genuine   CITROËN  
t

owbar   is   used.
Cooling
Towing a trailer on a slope increases the temperature   of   the   coolant.
As
  the   fan   is   electrically   controlled,   its   cooling  
c

apacity   is   not   dependent   on   the   engine   speed.
F
 
T
o   lower   the   engine   speed,   reduce   your  
s

peed.
The
  maximum   towed   load   on   a   long   incline  
d

epends   on   the   gradient   and   the   ambient  
t

emperature.
In
  all   cases,   keep   a   check   on   the   coolant  
t

emperature. F
 
I
f   the   warning   lamp   and   the  
S

TOP
 
warning   lamp   come   on,  
s

top   the   vehicle   and   switch   off  
t

he   engine   as   soon   as   possible.
Braking
Towing a trailer increases the braking distance.
T o   avoid   overheating   of   the   brakes,   the   use   of  
e

ngine   braking   is   recommended.
Ty r e s
F Check  the   tyre   pressures   of   the   towing  v
ehicle   and   of   the   trailer,   observing   the  
re

commended
 p
ressures.
Lighting
F Check  the   electrical   lighting   and   signalling  o
n   the   trailer   and   the   headlamp   beam  
h

eight   of   your   vehicle.
For
  more   information   on   Adjusting the
headlamp beam height , refer to the
corresponding
 s

ection.
Driving

190
Park Assist
This system provides active assistance with parking.   It   detects   a   parking   space   then  
o

perates   the   steering   to   park   in   the   space.
It
  operates   the   steering   while   the   driver  
m

anages   the   accelerator,   brakes,   gears   and  
c

lutch   (manual   gearbox).   During   phases   of  
e

ntry   into   and   exit   from   a   parking   space,   the  
s

ystem   provides   visual   and   audible   information  
t

o   the   driver   in   order   to   make   the   manoeuvres  
s

afe.   It   may   be   necessary   to   move   for wards  
a

nd   backwards   more   than   once. During
  a   manoeuvre   the   steering  
w

heel   turns   quickly:   do   not   hold   the  
s

teering   wheel,   do   not   place   your   hands  
b

etween   the   spokes   of   the   steering  
w

heel   and   take   care   with   loose   and  
b

ulky   clothing,   scarves,   handbags...  
T

here   is   a   risk   of   injury.
When
  Park   Assist   is   activated,   it  
p

revents   a   change   to   STOP   mode   of  
S

top   &   Start.   In   STOP   mode,   activation  
o

f   Park   Assist   restarts   the   engine.
The
  Park   Assist   system   cannot   in   any  
c

ircumstances   replace   the   need   for  
v

igilance   on   the   part   of   the   driver.
The
  driver   must   remain   in   control  
o

f   their   vehicle   ensuring   that   the  
s

pace   remains   clear   throughout   the  
m

anoeuvre.
In
  some   circumstances,   the   sensors  
m

ay   not   detect   small   obstacles   located  
i

n   their   blind   spots.
The
  driver   can   take   control   at   any   time   by  
g

ripping   the   steering   wheel. The
  Park   Assist   system   provides   assistance   for  t
he   following   manoeuvres:
A.
 E

ntry   into   a   parallel   parking   space
B.
 E

xit   from   a   parallel   parking   space
C.
 B

ay
 par
kingThe
  Park   Assist   system   takes   control  
o

f   the   power   steering   for   a   maximum  
o

f   4   manoeuvre   cycles.   The   function  
i

s   deactivated   after   these   4   cycles.  
I

f   you   think   that   your   vehicle   is   not  
p

ositioned   correctly,   you   should   then  
t

ake   control   of   the   steering   to   carry   out  
t

he   manoeuvre.
The
  Park   Assist   system   cannot   work  
w

ith   the   engine   off.
Driving

223
Electronic stability control (ESC) incorporating the   following   systems:
-
 
a
nti-lock   braking   system   (ABS)   and  
e

lectronic   brake   force   distribution   (EBFD),
-
 
e
mergency   braking   assistance   (EBA),
-
 
w
heel   anti-slip   regulation   (ASR)   or   traction  
c

ontrol,
-
 
d
ynamic   stability   control   (DSC).
Electronic stability control (ESC)
Definitions
Anti-lock braking system (ABS)
and electronic brake force
distribution (EBFD)
This system improves the stability and manoeuvrability   of   your   vehicle   when   braking  
a

nd   contributes   towards   improved   control   on  
c

orners,   in   particular   on   poor   or   slippery   road  
su

rfaces.
The
  ABS   prevents   wheel   lock   in   the   event   of  
em

ergency
 b
raking.
The
  EBFD   manages   the   braking   pressure  
w

heel   by   wheel.
Emergency braking assistance
(EBA)
In an emergency, this system enables you to reach   the   optimum   braking   pressure   more  
q

uickly   and   therefore   reduce   the   stopping  
di

stance.
It
  is   triggered   according   to   the   speed   at   which  
t

he   brake   pedal   is   pressed.   This   is   felt   by   a  
r

eduction   in   the   resistance   of   the   pedal   and   an  
i

ncrease   in   the   effectiveness   of   the   braking.
Anti-slip regulation (ASR)
The ASR system (also known as Traction Control)   optimises   traction   in   order   to   limit  
w

heel   slip   by   acting   on   the   brakes   of   the   driving  
w

heels   and   on   the   engine.   It   also   improves  
t

he   directional   stability   of   the   vehicle   on  
a

cceleration.
Dynamic stability control (DSC)
If there is a difference between the path followed   by   the   vehicle   and   that   required   by  
t

he   driver,   the   DSC   monitors   each   wheel   and  
a

utomatically   acts   on   the   brake   of   one   or   more  
w

heels   and   on   the   engine   to   return   the   vehicle  
t

o   the   required   path,   within   the   limits   of   the   laws  
o

f   physics.
6
Safety

225
Anti-slip regulation (ASR)
Activation
This system is activated automatically each time   the   vehicle   is   started.
It
  comes   into   operation   in   the   event   of   a  
p

roblem   of   grip.
Deactivation
In exceptional conditions (starting a vehicle which   is   bogged   down,   stuck   in   snow,   on   soft  
g

round...),   it   may   be   advisable   to   deactivate  
t

he   DSC   and   ASR,   so   that   the   wheels   can   turn  
f

reely   and   regain   grip.
This
 
is
 
indicated
 
by
 
the
 
flashing
 
of
 
t

his
 
warning
 
lamp
 
in
 
the
 
instrument
 
pan

el. Reactivate
  the   systems   as   soon   as   the   level   of  
g

rip   permits.
F

I
n the Driving
 
menu,   select   the   "Driving
assistance " tab, then "Anti-slip
regulation ".
This
  indicator   lamp   comes   on   in   the  
in

strument
 pan
el.
The
  ASR   system   will   no   longer   act  
o

n   the   operation   of   the   engine   and  
o

n   the   brakes   in   the   event   of   an  
i

nvoluntary   change   of   trajectory.
After
 
an
 
impact,
 
have
 
the
 
system
 
checked
 
by
 
a
 C
ITROËN
 
dealer
 
or
 
a
 
qualified
 
workshop.
Operating fault
Reactivation
The system is reactivated automatically every t
ime   the   ignition   is   switched   back   on   or   from   30  
m

ph   (50   km/h).
Below
  30   mph   (50   km/h),   you   can   reactivate   it  
m

anually:
F

I
n the Driving
 
menu,   select   the   "Driving
assistance " tab, then "Anti-slip
regulation ".
Illumination
  of   this   warning   lamp,  
a

ccompanied   by   an   audible   signal  
a

nd   a   message,   indicate   a   fault   with  
t

he   system.
Contact
  a   CITROËN   dealer   or   a   qualified  
w

orkshop   to   have   the   system   checked.
6
Safety

276
Brake wear depends on the style of   driving,   particularly   in   the   case o

f   vehicles   used   in   town,   over   short
 d

istances.   It   may   be   necessary   to   have
 t

he   condition   of   the   brakes   checked,
 e

ven   between   vehicle   services.
Brake pads
For information on checking brake disc   wear,   contact   a   CITROËN   dealer  
o

r   a   qualified   workshop.
Brake disc wear
Only use products recommended by CITROËN   or   products   of   equivalent  
q

uality
 an
d
 sp
ecification.
In
  order   to   optimise   the   operation   of  
u

nits   as   important   as   those   in   the  
b

raking   system,   CITROËN   selects   and  
o

ffers   very   specific   products.
After
  washing   the   vehicle,   dampness,  
o

r   in   wintry   conditions,   ice   can   form  
o

n   the   brake   discs   and   pads:   braking  
e

fficiency   may   be   reduced.   Make   light  
b

rake   applications   to   dry   and   defrost  
t

he   brakes.
Electric parking brake
For more information, refer to the "E lectric
parking brake - Operating faults "
  section.
This
  system   does   not   require   any  
r

outine   servicing.   However,   in   the  
e

vent   of   a   problem,   have   the   system  
c

hecked   by   a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop.
Manual gearbox
The gearbox does not require any m
aintenance   (no   oil   change).
Refer
  to   the   manufacturer's   service  
s

chedule   for   the   checking   interval   for  
t

his
 c
omponent.
Automatic gearbox
The gearbox does not require any maintenance   (no   oil   change).
Refer
  to   the   manufacturer's   service  
s

chedule   for   details   of   the   level  
c

hecking   interval   for   this   component.
To
  avoid   damaging   the   electrical   units,  
n

ever use   a   high   pressure   jet   wash   in  
t

he   engine   compartment.
Unless
  there   is   a   leak   in   the   circuit,   a   drop   in  
t

he   brake   fluid   level   indicates   that   the   brake  
p

ads   are   worn.
Practical information

326
Diesel weights and towed loads (in kg)
The GTW and towed load values indicated are valid up to a maximum altitude of 1 000 metres; the towed load mentioned must be reduced by 10 % for each   additional   1   000   metres   of   altitude.
When
  towing,   the   speed   must   never   exceed   60   mph   (100   km/h)   (comply   with   the   legislation   in   force   in   your   country).
High
  ambient   temperatures   may   result   in   a   reduction   in   the   per formance   of   the   vehicle   to   protect   the   engine;   if   the   ambient   temperature   is   above   37   °C,  
l

imit   the   towed   load.
Diesel engine
HDi 115BlueHDi 100 S&S*
Gearbox Manual
 (
6-speed)
Manual
 (
6-speed)
Model code 3D...
 3
E...
 3
A...
3D...
 3
E...
 3
A...
3D...
 3
E...
 3
A...
9HC8 9HC8/1 BHY...
6/1S   -   6/2SM
Unladen   weight
1290   -   1   310   -   1   312
1   298   -   1   318   -   1   320
1   296   -   1   318   -   1   320
Kerb   weight**
1   365   -   1   385   -   1   387
1   373   -   1   393   -   1   395
1   371   -   1   393   -   1   395
Gross   vehicle   weight   (GV W)
1   940   -   2   110   -   2   150
1   940   -   2   110   -   2   150
1   950   -   2   120   -   2   175
Gross   train   weight   (GTW)
on   a   12%   gradient
3   340   -   3   350   -   3   350
2   740   -   2   910   -   2   950
3   150   -   3   120   -   3   175
Braked   trailer   (within   the   GTW   limit)
on   a   10%   or   12%   gradient
1   400   -   1240   -   1   200
8001   200   -   1   000   -   1   000
Brakes   trailer***  
(with   load   transfer   within   the   GTW   limit)
1   600   -   1   540   -   1   500
800 1   400   -   1   300   -   1   300
Unbraked
 t
railer
680   -   690   -   690
685   -   695   -   695
645   -   659   -   660
Recommended   nose   weight
707070
* The   weights   are   calculated   with   a   towbar   fitted.
** The   kerb   weight   is   equal   to   the   unladen   weight   +   driver   (75   kg).
***   
T
he   weight   of   the   braked   trailer   can   be   increased,   within   the   GTW   limit,   if   the   GV W   of   the   towing   vehicle   is   reduced   by   an   equal   amount;   warning,  t
owing   using   a   lightly   loaded   towing   vehicle   may   have   an   adverse   effect   on   its   road   holding.
Technical data