2021 CITROEN C4 AIRCROSS DAG engine oil

134
Practical information
For more information on the precautions
to take before any work on the 12 V battery, refer to the corresponding section.
Versions equipped with Stop & Start are fitted with a 12 V lead-acid battery of specific technology and specification.
Its replacement should be carried out only by
a CITROËN dealer or a qualified workshop.
Passenger compartment
filter
Depending on the environment and the use of the vehicle (e.g. dusty atmosphere,
city driving), change it twice as often, if
necessary .
A clogged passenger compartment filter
can adversely affect air conditioning
system performance and generate
undesirable odours.
Air filter
Depending on the environment and the use of the vehicle (e.g. dusty atmosphere,
city driving), change it twice as often, if
necessary .
Oil filter
Change the oil filter each time the engine oil is changed.
Particle filter (Diesel)
When the particle filter is approaching saturation, this warning lamp comes on
temporarily, accompanied by a message warning
of the risk of filter clogging.
As soon as the traffic conditions permit,
regenerate the filter by driving at a speed of at
least 37 mph (60 km/h) until the warning lamp goes off.
If the warning lamp stays on, this
indicates a low Diesel additive level.
For more information on Checking levels,
refer to the corresponding section.
Following prolonged operation of the
vehicle at very low speed or at idle, you
may, in exceptional circumstances, notice the
emission of water vapour at the exhaust while
accelerating. This has no impact on the
vehicle’s behaviour or the environment.
New vehicle
During the first few particle filter
regeneration operations, you may notice a
"burning" smell. This is perfectly normal.
Manual gearbox
The gearbox does not require any maintenance (no oil change).
Automatic gearbox
The gearbox does not require any maintenance (no oil change).
Brake pads
Brake wear depends on the style of driving, particularly in the case of vehicles
used in town, over short distances. It may be
necessary to have the condition of the brakes
checked, even between vehicle services.
Unless there is a leak in the circuit, a drop in the
brake fluid level indicates that the brake pads
are worn.
After washing the vehicle, moisture, or in wintry conditions, ice can form on the
brake discs and pads: braking efficiency may
be reduced. Gently dab the brakes to dry and
defrost them.
Brake disc wear
For information on checking brake disc
wear, contact a CITROËN dealer or a
qualified workshop.
Manual parking brake
If you notice excessive brake lever travel or decreased effectiveness, the parking
brake must be adjusted, even between two
services.
This system must be checked by a CITROËN
dealer or a qualified workshop.
Wheels and tyres
The inflation pressure of all tyres, including the spare wheel, must be
checked on "cold” tyres.
The pressures indicated on the tyre pressure
label are valid for "cold" tyres. If you have driven
for more than 10 minutes or more than 6 miles
(10 kilometres) at over 31 mph (50 km/h), add 0.3 bar (30 kPa) to the values indicated on the
label.
Under-inflation increases fuel
consumption. Non-compliant tyre
pressure causes premature wear on tyres and
has an adverse effect on the vehicle's road
holding - risk of an accident!
Driving with worn or damaged tyres reduces the
braking and road holding performance of the
vehicle. It is recommended to regularly check the
condition of the tyres (tread and sidewalls) and
wheel rims as well as the presence of the valves.
When the wear indicators no longer appear set
back from the tread, the depth of the grooves is
less than 1.6 mm; it is imperative to replace the
tyres.
Using different size wheels and tyres from those
specified can affect the lifetime of tyres, wheel
rotation, ground clearance, the speedometer
reading and have an adverse effect on road
holding.
Fitting different tyres on the front and rear axles
can cause the ESC to mistime.

214
Alphabetical index
180° rear vision 118
A
ABS 67Accessories 64Active Safety Brake 108–109, 111AdBlue® 14, 135
AdBlue® tank 136Additive, Diesel 133–134Adjusting headlamps 59Adjusting head restraints 36Adjusting seat 37Adjusting the air distribution 44Adjusting the air flow 44–45Adjusting the date 17, 22, 187, 210Adjusting the height and reach of the steering wheel 41Adjusting the seat angle 37Adjusting the seat belt height 71Adjusting the temperature 44Adjusting the time 17, 22, 187, 210Advice on care and maintenance 137Advice on driving 6, 86Airbags 73, 75, 77Airbags, curtain 74–75Airbags, front 74–75, 78Airbags, lateral 74–75Air conditioning 43–44Air conditioning, automatic 44Air conditioning, manual 43–44
Air intake 44Air vents 42Alarm 30–32Anti-lock braking system (ABS) 67Antitheft / Immobiliser 26Apple CarPlay connection 183, 199Armrest, front 49Armrest, rear 50Assistance call 65
Assistance, emergency braking 67, 110Audible warning 65Audio streaming (Bluetooth) 170, 182, 204
B
Battery 128, 152–155Battery, 12 V 133–134, 154Battery, charging 154Battery, remote control 26–27Blind 32–33Blind spot sensors 113Blinds, side 50BlueHDi 14, 133, 139Bluetooth (hands-free) 170–171, 184–185, 205–206Bluetooth (telephone) 184–185, 205–207Bodywork 138Bonnet 130Boot 29, 54Brake discs 134Brake lamps 148
Brakes 134Braking assistance system 67Braking, automatic emergency 108–111Brightness 186Bulbs 147Bulbs (changing) 146–148
C
Cable, audio 204Cable, Jack 204Capacity, fuel tank 123–124Cap, fuel filler 123–124Care of the bodywork 138CD 169, 182, 204CD, MP3 169, 182, 204Central locking 25, 30Changing a bulb 146–149Changing a fuse 150–152Changing a wheel 139, 143Changing a wiper blade 61–62Changing the remote control battery 27Charger, induction 48Charger, wireless 48Checking the engine oil level 14Checking the levels 131–133Checking tyre pressures (using the kit) 140, 142Checks 131, 133–134Checks, routine 133–134Child lock 84–85

215
Alphabetical index
Children 72, 79–81, 83Children (safety) 84Child seats 72, 75–79Child seats, conventional 78–79Child seats, i-Size 83Child seats, ISOFIX 80–81, 83Cleaning (advice) 137–138Closing the boot 24, 26, 29Closing the doors 24–26, 29
Coat hanger 50Coat hook 50Collision risk alert 109–110Collision Risk Alert 108–110Configuration, vehicle 17–19Connection, Bluetooth 171, 184–185, 201–202, 205–207Connection, MirrorLink 183–184, 200Connection, Wi-Fi network 202Container, AdBlue® 136Control, electric windows 34Control, emergency boot release 29Control, emergency door 26–27Control, heated seats 38Control stalk, lighting 55–56Control stalk, wipers 60–63Courtesy lamp 149Courtesy lamps 53Cruise control 101, 103–104, 106–108Cruise control by speed limit recognition 103–104Cruise control, dynamic with Stop function 103–104
Cup holder 50
D
DAB (Digital Audio Broadcasting) - Digital radio 167–168, 181, 203–204Date (setting) 17, 22, 187, 210Daytime running lamps 57, 147
Deactivating the passenger airbag 74, 77–78Deadlocking 24, 26Defrosting 46–47Defrosting, front 46Demisting, front 46Demisting, rear 41Demisting, rear screen 41Dials and gauges 7Dimensions 162Dipstick 14, 132Direction indicators 56, 147–148Display, head-up 99–100Doors 29Driver’s attention warning 111 – 11 2Driving 86Driving aids camera (warnings) 99Driving aids (recommendations) 98Driving economically 6Dynamic stability control (DSC) 67–68
E
EBFD 67Eco-driving (advice) 6Economy mode 128Electric windows 34Electronic brake force distribution (EBFD) 67Emergency braking assistance (EBA) 67Emergency call 65
Emergency switching off 90Emergency warning lamps 64Emissions control system, SCR 15, 135Energy economy mode 128Engine compartment 131Engine, Diesel 123, 131, 139, 161Engine, petrol 131, 159Engines 158–159, 161Environment 6, 26ESC (electronic stability control) 67
F
Fatigue detection 111 – 11 2Filling the AdBlue® tank 133, 136Filling the fuel tank 123–124Filter, air 134Filter, oil 134Filter, particle 133–134Filter, passenger compartment 43, 134Fitting a wheel 143, 145Fitting roof bars 129

216
Alphabetical index
Fittings, boot 51Fittings, interior 47–48, 50Fittings, rear 50Flap, fuel filler 123–124Flashing indicators 56, 147Floor, boot, adjustable 52Fluid, brake 132Fluid, engine coolant 133Foglamp, rear 55
Foglamps, front 55, 59–60, 147–148Foglamps, rear 55Folding the rear seats 38–40Frequency (radio) 203Fuel 6, 123Fuel consumption 6Fuel tank 123–124Fusebox, dashboard 150, 152Fusebox, engine compartment 150, 152Fuses 150–152
G
Gauge, fuel 123–124Gearbox, automatic 92, 94–96, 134Gearbox, manual 91–92, 95–96, 134Gear lever, manual gearbox 91–92Gear shift indicator ~ Gear efficiency indicator 94Glove box 48G.P.S. 197Grab handles 50
Grip control 68
H
Hazard warning lamps 64headlamp adjustment 59Headlamp adjustment 59Headlamps, automatic dipping 58–59
Headlamps, automatic illumination 57–58Headlamps, dipped beam 55, 147–148Headlamps, halogen 147Headlamps, main beam 55, 147–148Head restraints, front 36Head restraints, rear 38–40Head-up display 99–101Heating 42–44Hill Assist Descent 69Hill Assist Descent Control (HADC) 69–70Hill Descent Control 69–70Hill start assist 94–95Hooks 52Horn 65
I
Ignition 45, 90, 207Ignition on 90Ignition switch 87–88Immobiliser, electronic 87Indicator, AdBlue® range 14
Indicator, coolant temperature 13Indicator, engine oil level 14Indicators, direction 56Inflating tyres 135, 163Inflating tyres and accessories (using the kit) 140, 142Infrared camera 99Instrument panel 7–8, 99Instrument panel, matrix 7
Instrument panels 7Internet browser 199ISOFIX mountings 80
J
Jack 140, 143, 204Jump starting 153
K
Key 23–27Key, electronic 24–26Keyless Entry and Starting 24–26, 87, 89Key not recognised 90Key with remote control 87Kit, hands-free 170–171, 184–185, 205–206Kit, puncture repair 140Kit, temporary puncture repair 139–142

217
Alphabetical index
L
Labels, identification 162Lamp, boot 54, 149Lamps, parking 56Lamps, rear 148Lane Departure Warning System (LDWS) 112–113LEDs - Light-emitting diodes 57, 147
Level, AdBlue® 133Level, brake fluid 132Level, Diesel additive 133–134Level, engine coolant 13, 133Level, engine oil 14, 132Levels and checks 131–133Level, screenwash fluid 61, 133Light-emitting diodes - LEDs 57, 147Lighting, cornering 60Lighting, directional 59Lighting, exterior 55Lighting, guide-me home 57Lighting, interior 53Lighting, mood 53Lighting, welcome 58Load reduction mode 128Locating your vehicle 24Locking 24, 26Locking from the inside 30Locking the doors 30Low fuel level 123–124
M
Maintenance (advice) 137Maintenance, routine 99, 133Manoeuvring aids (recommendations) 98Map reading lamps 53Markings, identification 162Mat 50, 99Memorising a speed 101
Menu 183Menu, main 165Menus (audio) 178–179, 192–193Messages 207Messages, quick 208Mirror, rear view 42Mirrors, door 41–42, 113Misfuel prevention 124Mountings, ISOFIX 80MP3 CD 169
N
Net, storage 50
O
Obstacle detection 114Oil change 132Oil consumption 132OIl, engine 132
On-board tools 53, 139–140Opening the bonnet 130Opening the boot 24–25, 29Opening the doors 24–25, 29
P
Pads, brake 134
Paint 138, 162Paint colour code 162Parcel shelf, rear 51Park Assist 118Parking brake 91, 134Parking sensors, audible and visual 114Parking sensors, front 11 5Parking sensors, rear 11 5Plates, identification 162Player, Apple® 170, 182, 205Player, MP3 CD 169, 204Player, USB 168, 181, 204Port, USB 49, 168, 181, 204Pressures, tyres 135, 143, 163Pre-tensioning seat belts 72Priming pump 139Priming the fuel system 139Profiles 186, 209Protecting children 74–81, 83Puncture 140–141, 143

218
Alphabetical index
R
Radio 166–167, 179–180, 182, 202–204Radio, digital (Digital Audio Broadcasting - DAB) 167, 181, 203–204Range, AdBlue 14, 133RDS 180, 203Rear screen, demisting 46–47Recharging the battery 154
Recirculation, air 44Recovery 156Reduction of electrical load 128Regeneration of the particle filter 134Reinitialisation of the under-inflation detection system 98Reinitialising the remote control 28Reminder, key in ignition 88Reminder, lighting on 56Remote control 23–26Removing a wheel 143–145Removing the mat 50Replacing bulbs 146–148Replacing fuses 150–152Replacing the air filter 134Replacing the oil filter 134Replacing the passenger compartment filter 134Reservoir, screenwash 133Resetting the trip recorder 16Reversing camera 99, 116–118Roof bars 129Running out of fuel (Diesel) 139
S
Safety, children 74–81, 83Saturation of the particle filter (Diesel) 134Screen, instrument panel 20Screen menu map 183Screen, monochrome 17Screen, multifunction (with audio system) 165Screenwash 61
Screenwash, front 61Screenwash, rear 61SCR (Selective Catalytic Reduction) 15, 135Seat angle 37Seat belts 70–72, 78Seat belts, rear 71Seats, front 36–37Seats, heated 38Seats, rear 38–40, 76Sensors (warnings) 99Serial number, vehicle 162Service indicator 13Servicing 13, 133Settings, equipment 16–19Settings, system 186, 209Sidelamps 55–57, 147–148Snow chains 97, 124–125Socket, 12 V accessory 48Socket, auxiliary 169, 182, 204Socket, Jack 169, 204Sockets, audio 49Speed limiter 101, 103–106Speed limit recognition 101–103
Speedometer 99Stability control (ESC) 67–68Starting a Diesel engine 123Starting the engine 87Starting the vehicle 87–89Starting using another battery 90, 153Station, radio 166, 179–180, 202–203Stay, bonnet 130Steering mounted controls,
audio 165, 177, 191Steering wheel, adjustment 41Stickers, customising ~ Stickers, expressive 138Stopping the vehicle 87–89Stop & Start 21, 43, 46, 95–97,
123, 130, 134, 155
Storage 48, 50Storage box 53Storage wells 53Stowing rings 50Sunroof, panoramic 32–33Sunshine sensor 43Sun visor 47Switching off the engine 87Synchronising the remote control 28
T
Tables of fuses 150–152Tank, fuel 123–124Technical data 159, 161