brake sensor CITROEN DS3 2018 Handbook (in English)
Page 119 of 248
11 7
In case of towing
Driving with a trailer places greater 
d emands on the towing vehicle and 
requires extra care from the driver.
Distribution of loads
F Distribute the load in the trailer so that the  heaviest items are as close as possible to 
the axle and the nose weight approaches 
the maximum permitted without exceeding 
it.
Air density decreases with altitude, thus 
reducing engine performance. The maximum 
towed load must be reduced by 10% for every 
1,000
  metres of altitude.
Please respect the maximum towable 
weights.
Side wind
F Take into account the increased sensitivity  to wind.
Cooling
Towing a trailer on a slope increases the 
t emperature of the coolant.
As the fan is electrically controlled, its cooling 
capacity is not dependent on the engine speed.
F
 
T
 o lower the engine speed, reduce your 
speed.
The maximum towable load on an incline 
depends on the gradient and the exterior 
temperature.
In all cases, keep a
  check on the coolant 
temperature.
F
 
I
 f this warning lamp and the 
STOP warning lamp come on, 
stop the vehicle and switch off 
the engine as soon as possible.
New vehicle
Do not pull a   trailer before having driven at least 
approximately 600
 
miles (1,000
 
 kilometres).
Braking
Towing a trailer increases the braking distance.
T o avoid overheating of the brakes, the use of 
engine braking is recommended.
Ty r e s
F Check the tyre pressures of the towing  vehicle and of the trailer, observing the 
recommended pressures.
Lighting
F Check the electrical lighting and signalling on the trailer and the headlamp beam height 
of your vehicle.
For more information on Headlamp 
beam height adjustment , refer to the 
corresponding section.
The rear parking sensors will be 
deactivated automatically to avoid 
the audible signal if a
  genuine 
DS
  AUTOMOBILES towbar is used.
If the exterior temperature is high, it is 
recommended that the engine be allowed 
to idle for 1
  to 2   minutes after the vehicle 
comes to a
  stop, to facilitate its cooling.
06 
Driving  
Page 131 of 248
129
If the temperature is below -23°C, the 
engine should be left at idle for four 
minutes, to ensure the correct operation 
and life of the engine and gearbox.
When the engine is running at idle, with 
the brakes released, if position R, D or M  
is selected, the vehicle moves even 
without the accelerator being pressed.
Do not leave children unsuper vised inside 
the vehicle when the engine is running.
When carrying out maintenance with the 
engine running, apply the parking brake 
and select position P .
Automatic operation
F Select position D to change the six gears 
automatically . The gearbox then operates in auto-adaptive 
mode, without any inter vention on the part 
of the driver. It continuously selects the most 
suitable gear according to the style of driving, 
the profile of the road and the load in the 
vehicle.
For maximum acceleration without touching 
the selector, press the accelerator fully down 
(kick-down). The gearbox changes down 
automatically or holds the gear selected until 
the maximum engine speed is reached.
On braking, the gearbox changes down 
automatically to provide effective engine 
braking.
If you release the accelerator sharply, the 
gearbox will not shift to a
  higher gear for safety 
reasons.
Never select position N while the vehicle 
is moving.
Never select position P or R unless the 
vehicle is completely stationary.
Reverse
When selecting reverse R with the ignition 
on, the rear parking sensors are activated 
automatically.
Creep function (moving without 
using the accelerator)
This function facilitates manoeuvring of the 
vehicle at low speed (when parking, in traffic 
jams, etc.).
With the engine at idle, parking brake released 
and position D , M or R selected, the vehicle 
moves  as soon as you take your foot off 
the brake pedal (even without pressing the 
accelerator).
For your safety, this function will be activated 
only if you press the brake pedal when 
changing from forward drive to reverse.
It is deactivated on opening the driver's door.
Closing the door then pressing the brake or 
accelerator pedal, reactivates the function.
Manual operation
F Select position M for sequential  changing 
of the six gears.
F
 
M
 ove the selector towards the + sign to 
change up a
  gear.
F
 
M
 ove the selector towards the - sign to 
change down a
  gear. 
If your vehicle has an automatic gearbox, 
never try to start the engine by pushing 
the vehicle. For more information on Parking assistance
, 
refer to the corresponding section.
06 
Driving  
Page 142 of 248
140
Malfunction
In the event of a cruise control fault, the speed 
i s cleared resulting in flashing of the dashes. 
Have it checked by an authorised dealer or by 
a
 
qualified workshop. When cruise control is active, be careful 
when holding one of the speed setting 
buttons: this may result in a
  very rapid 
change in the speed of your vehicle.
Do not use the cruise control on slippery 
roads or in heavy traffic.
When descending a
 
steep hill, the cruise 
control system cannot prevent the vehicle 
from exceeding the programmed speed.
To avoid any risk of jamming the pedals:
-
 
E
 nsure that mats are secured correctly.
-
 
D
 o not fit one mat on top of another.
Active City Brake
Active City Brake is a driving assistance 
s ystem that aims to avoid a   frontal collision 
or reduce the speed of an impact if the driver 
does not react sufficiently (inadequate brake 
application).
This system has been designed to 
improve driving safety.
The driver must always check the traffic 
and assess the distances and relative 
speeds of other vehicles.
Active City Brake cannot in any 
circumstances replace the need for 
vigilance on the part of the driver.
Never look at the laser sensor through 
an optical instrument (magnifying glass, 
microscope, etc.) at a
  distance of less 
than 10
  centimetres: risk of eye injury!
Principle
Using a laser sensor located at the top of the 
w indscreen, this system detects a   vehicle 
running in the same direction or stationary 
ahead of your vehicle.
When necessary, the vehicle's braking system 
is operated automatically to avoid a
  collision 
with the vehicle ahead.
Automatic braking occurs later than if 
done by the driver, so as to inter vene only 
when there is a
  high risk of collision.
Conditions of activation
Active City Brake functions if the following 
conditions are met:
-
 ig
nition on,
-
 
t
 he vehicle is moving for ward,
-
 
t
 he speed is between about 3   and 19   mph 
(5
  and 30   km/h),
06 
Driving  
Page 243 of 248
205
Mirror, vanity ............................................................. 78
Misfuel prevention  .......................................... 148 -149
Mountings, ISOFIX
 ......................................... 111
,  113
MP3
  CD   ...................................................................... 5
Number plate lamps
 
........................................ 176 -179
Oil change
 
...................................................... 15 5 -15 6
Oil consumption
 
............................................. 15 5 -15 6
Oil, engine
 
...................................................... 15 5 -15 6
Opening the bonnet
 
....................................... 15 3 -15 4
Opening the boot
 
......................................... 4 3 , 57- 5 8
Opening the doors
 
....................................... 4 3 , 4 9 - 51
Opening the fuel filler flap
 
.....................................14
8
Pads, brake
 
.................................................... 15 8 -159
Paint colour code
  ................................................... 201
Parcel shelf, rear
 
...................................................... 81
Parking brake
 
......................................... 120, 15 8 -159
Parking sensors, front
 
....................................143 -14 4
Parking sensors, rear
 
............................................ 143
Passenger's airbag
 
.................................................. 22
Peugeot Connect USB ~ USB Box
 
.........................79
P
layer, Apple
®....................................................... 11,  6
Player, MP3
 
CD   ...................................................... 5-6
Player, USB
 
............................................................ 9, 4
Port, USB .......................................................... 79, 9, 4
Power steering
 ......................................................... 18
P
re-heater, diesel
 
 ..................................................... 21
Pressures, tyres
 ............................................. 16
9, 201
Pre-tensioning seat belts
 
....................................... 10 0
Priming the fuel system
  ......................................... 165
Protecting children
 
........... 101-102, 104 -10 6, 110 -113
Puncture
 
................................................. 165 -166, 168Radio
 
.............................................................
7- 8, 10, 3
Radio, digital (Digital Audio Broadcasting – DAB)
 
 ...
9
Range
 
 .......................................................................
40
Range, AdBlue
 ................................................... 2
 8-29
RDS
 ........................................................................\
.... 8
R
 ear screen, demisting/defrosting
 ..........................
75
R
 echarging the battery
 
 ..................................
18 9 -19 0
Recirculation, air
 
 .................................................
72-75
Reduction of electrical load
 
 ...................................
152
Regeneration of the particle filter  
..........................
15
 8
Reinitialising the electric windows
 
 ....................
47- 4 8
Reinitialising the remote control
 
 ..............................
44
Reminder, key in ignition   ................................
11 8 -11 9
Remote control
 
 ...................................................
43, 45
Removing a   wheel   ..........................................
171-173
Removing the mat
 
 ....................................................
80
Replacing bulbs ....................................... 174, 176 -179
Replacing fuses
 
 ......................
181-183, 185 -18 6, 188
Replacing the air filter
 
 ............................................
15 8
Replacing the oil filter
 
 ............................................
15 8
Replacing the passenger compartment filter
 
 .......
15 8
Reservoir, screenwash
 
 ..........................................
157
Resetting the service indicator
 
 ...............................
27
Resetting the trip recorder
 
 .......................................
30
Rev counter
 
 ...........................................................
9 -12
Reversing camera
 
 ..................................................
14 4
Reversing lamp
 
 ...............................................
176 -179
Risk areas (update)   ....................................................
6
Running out of fuel (Diesel)   ...................................
165
Safety, children
 
 .................101-102, 104 -10 6, 111-112
Saturation of the particle filter (Diesel)
 
.................15
8
Scented air freshener
 
..............................................76
Screen, monochrome
 
................................................2
Screen, multifunction (with audio  syste m)
 
..................................................31- 3 4 ,  4 0 - 41
Screenwash .............................................................. 89
Screenwash, rear
 
...............................................88-89SCR (Selective Catalytic Reduction)
 ....................
15
 9
Seat belts
 .................................................. 9
 8 -10 0, 109
Seat, rear bench ....................................................... 66
Seats, front
 
 .............................................
61-62, 64-65
Seats, heated
 
 .....................................................
62- 63
Seats, rear
 
 ................................................................
66
Selector, gear
 ......................................................... 12
 7
Serial number, vehicle
 
 ...........................................
201
Service indicator
 
 ......................................................
25
Servicing
 ................................................................... 25
S
 ettings, equipment
 
 .........................
31-34, 36, 40 - 41
Settings, system
 
 .......................................................
12
Sidelamps
 ................................................. 8
 4, 175 -179
Side repeater
 
 ..........................................................
176
Snow chains
 
 ...........................................................
151
Socket, 12   V accessory   ...........................................
80
Socket, auxiliary
 
 ...................................................
10, 5
Socket, Jack
 
 ...................................................
79, 10, 5
Sockets, audio
 .......................................................... 79
Spe
 ed limiter
 
 ..................................................
13 6 -13 8
Speedometer
 
 .........................................................
9 -12
Stability control (ESC) ........................................ 96 -97
Starting a
 
 Diesel engine
 
 ........................................
15 0
Starting the vehicle
 
 .................................
11 6 ,  11 8 -13 0
Starting using another battery
 .............................. 18
 9
Station, radio
 
 .......................................................
7- 8 , 3
Steering mounted controls, audio
 
 .............................
2
Steering wheel, adjustment
 
 .....................................
67
Stopping the vehicle
 
 ...............................
11 6 ,  11 8 -13 0
Stop & Start  ..........................................
22, 40, 70, 75,
 132-134, 153, 157, 191
Storage
 
...............................................................78 -79
Storage box
 
..............................................................81
Stowing rings
 
......................................................81- 82
Sun visor
 ................................................................... 78
S
ynchronising the remote control  
...........................44
N
O
P R
S
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