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Practical information -> Checking levels for Your Citroen C4 Cactus SUV First Generation (2014-2018)

Practical information  
1. Screenwash fluid reservoir.  
2. Engine coolant reservoir.  
3. Brake fluid reservoir.  
4. Battery.  
Because of the presence of electrical  
equipment under the bonnet, it is  
recommended that exposure to water  
(rain, washing, etc.) be limited.  
Take care when working under the bonnet,  
as certain areas of the engine may be  
extremely hot (risk of burns) and the  
cooling fan could start at any time (even  
with the ignition off).  
5. Fusebox.  
6. Air filter.  
7. Engine oil dipstick.  
8. Engine oil filler cap.  
9. Remote earth point.  
Engines  
Petrol  
Used products  
Avoid prolonged contact of used oil or  
fluids with the skin.  
Most of these fluids are harmful to health  
or indeed very corrosive.  
The Diesel fuel system operates under  
very high pressure.  
All work on this circuit must be carried out  
only by a CITROËN dealer or a qualified  
workshop.  
Do not discard used oil or fluids into  
sewers or onto the ground.  
Take used oil to a CITROËN dealer or  
a qualified workshop and dispose of  
it in the containers reserved for this  
purpose.  
Diesel  
Checking levels  
Check all of these levels regularly, in line with  
the manufacturer's service schedule. Top them  
up if necessary, unless otherwise indicated.  
If a level drops significantly, have the  
Engine oil level  
corresponding system checked by a CITROËN  
dealer or a qualified workshop.  
The check is carried out either when  
the ignition is switched on using the  
oil level indicator in the instrument  
panel for vehicles equipped with an  
electric gauge, or using the dipstick.  
These engines are examples provided as a  
guide.  
The locations of the following elements may  
vary:  
The fluid must comply with the  
manufacturer's recommendations and with  
the vehicle's engine.  
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Air filter.  
Engine oil dipstick.  
Engine oil filler cap.  
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Practical information  
Topping up the engine oil level  
To ensure that the reading is correct, your  
vehicle must be parked on a level surface  
with the engine stopped for more than  
30 minutes.  
The location of the oil filler cap is shown in the  
corresponding underbonnet layout view.  
F Unscrew the oil filler cap to access the filler  
opening.  
F Add oil in small quantities, avoiding any  
spills on engine components (risk of fire).  
F Wait a few minutes before checking the  
level again using the dipstick.  
A = MAX  
B = MIN  
It is normal to top up the oil level between  
two services (or oil changes). CITROËN  
recommends that you check the level, and top  
up, if necessary, every 3,000 miles (5,000 km).  
F Add more oil if necessary.  
F After checking the level, carefully refit the oil  
filler cap and the dipstick in its tube.  
Checking using the dipstick  
If you find that the level is above the A mark or  
below the B mark, do not start the engine.  
The location of the dipstick is shown in the  
corresponding underbonnet layout view.  
F Take the dipstick by its coloured grip and  
pull it out completely.  
F Wipe the end of the dipstick using a clean  
non-fluffy cloth.  
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If the level is above the MAX mark (risk of  
damage to the engine), contact a CITROËN  
dealer or a qualified workshop.  
If the level is below the MIN mark, you must  
top up the engine oil.  
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After topping up the oil, the check when  
switching on the ignition with the oil level  
indicator in the instrument panel is not  
valid during the 30 minutes after topping  
up.  
F Refit the dipstick and push fully down, then  
pull it out again to make the visual check:  
the correct level is between marks A and B.  
Oil grade  
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Before topping up the oil or changing the oil,  
check that the oil is the correct grade for your  
engine and conforms to the manufacturer's  
recommendations.  
Engine oil change  
In order to maintain the reliability of the engine  
and emissions control system, never use  
additives in the engine oil.  
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Practical information  
Fluid specification  
Brake fluid level  
The screenwash fluid must be topped up with a  
ready for use mix.  
The fluid level should be close to the  
"MAX" mark. If it is not, check the  
brake pad wear.  
When the engine is warm, the temperature of  
the coolant is regulated by the fan.  
In winter (temperatures below zero), a fluid with  
antifreeze must be used that is appropriate for  
the prevailing conditions, in order to preserve  
the elements of the system (pump, tank, ducts,  
etc.).  
Filling with pure water is prohibited under all  
circumstances (risk of freezing, limestone  
deposits, etc.).  
In addition, as the cooling system is  
pressurised, wait at least one hour after  
switching off the engine before carrying out any  
work.  
To avoid the risk of scalding when you need to  
top up in an emergency, place a cloth around  
the cap and unscrew the cap by two turns to  
allow the pressure to drop.  
Brake fluid change  
Refer to the manufacturer's service schedule  
for details of the interval for this operation.  
Once the pressure has dropped, remove the  
cap and top up the coolant.  
Fluid specification  
Diesel additive level (Diesel  
engine with particle filter)  
The fluid must conform to the manufacturer's  
recommendations.  
The cooling fan may start after  
switching off the engine: take care  
with articles and clothing that might be  
caught by the fan blades.  
The additive reservoir low level is  
indicated by fixed illumination of this  
warning lamp, accompanied by an  
audible signal and a message that  
the particle filter additive level is  
too low.  
Coolant level  
Check the coolant level regularly.  
It is normal to top up the fluid  
between two services.  
Fluid specification  
The fluid must conform to the manufacturer's  
recommendations.  
Topping up  
To ensure that the reading is correct, your  
vehicle must be parked on a level surface with  
the engine cool.  
The reservoir must be topped up without delay  
by a CITROËN dealer or a qualified workshop.  
Screenwash fluid level  
The coolant level should be close to the "MAX"  
mark but should never exceed it.  
If the level is close to or below the "MIN" mark,  
it is essential to top up.  
Top up the level when necessary.  
A low coolant level presents a risk of serious  
damage to your engine.  
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Practical information  
AdBlue level  
Oil filter  
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.  
An alert is triggered once the reserve level is  
reached.  
Change the oil filter each time the  
engine oil is changed.  
To avoid the vehicle being immobilised as per  
regulations, you must top up with AdBlue.  
For more information on AdBlue and the SCR  
system, and, in particular, topping it up, refer to  
the corresponding section.  
Particle filter (Diesel)  
The start of saturation of the particle  
filter is indicated by the constant  
illumination of this warning lamp  
accompanied by an alert message.  
Air filter  
Depending on the environment  
(e.g. dusty atmosphere) and the  
use of the vehicle (e.g. city driving),  
replace it twice as often, if  
necessary.  
Checks  
Unless otherwise indicated, check these  
components in accordance with the  
manufacturer's service schedule and according  
to your engine.  
Otherwise, have them checked by a CITROËN  
dealer or a qualified workshop.  
Passenger compartment  
filter  
Depending on the environment  
(e.g. dusty atmosphere) and the  
use of the vehicle (e.g. city driving),  
replace it twice as often, if  
necessary.  
12 V battery  
The battery does not require any  
maintenance.  
However, check regularly that the  
terminals are correctly tightened  
(versions without quick release  
terminals) and that the connections  
are clean.  
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A clogged passenger compartment  
filter may have an adverse effect on  
the performance of the air conditioning  
system and generate undesirable odours.  
For more information on the precautions  
to take before starting work on the  
12 V battery, refer to the corresponding  
section.  
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