2017-2026 DS 7 4 Door Practical information -> AdBlue? (BlueHDi) User Manual
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Practical information -> AdBlue? (BlueHDi) for Your DS 7 4 Door First Generation (2017-2026)

175  
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Practical information  
have the condition of the brakes checked, even  
between vehicle services.  
Driving with worn or damaged tyres reduces the  
braking and road holding performance of the  
vehicle. Regularly check the condition of the tyres  
(tread and sidewalls) and rims as well as the  
presence of the valve caps.  
Timing and accessory kits  
The timing and accessory kits are used  
from the time the engine is started until it  
is switched off. It is normal for them to wear over  
time.  
Unless there is a leak in the circuit, a drop in the  
brake fluid level indicates that the brake pads are  
worn.  
When the wear indicators no longer appear set  
back from the tread, the depth of the grooves is  
less than 1.6 mm; replace the tyres as soon as  
possible.  
A faulty timing or accessory kit can damage  
the engine, rendering it unusable. Observe the  
recommended replacement frequency, stated in  
distance travelled or time elapsed, whichever is  
reached first.  
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.  
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.  
AdBlue® (BlueHDi)  
Brake disc wear  
For information on checking brake disc  
wear, contact a dealer or a qualified  
workshop.  
To respect the environment and ensure  
compliance with the Euro 6 standard, without  
adversely affecting the performance or  
fuel consumption of its Diesel engines, the  
Manufacturer has taken the decision to equip  
its vehicles with a system that combines SCR  
(Selective Catalytic Reduction) with a Diesel  
Particle Filter (DPF) for the treatment of exhaust  
gases.  
Fitting different tyres on the front and rear axles  
can cause the ESC to mistime.  
Always mark the direction of rotation on the tyres  
that will be stored when fitting winter or summer  
tyres. Store them in a cool, dry place and away  
from direct exposure to the sun's rays.  
Winter or 4-seasons tyres can be identified  
by this symbol on their sidewalls.  
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.  
Shock absorbers  
SCR system  
It is not easy for drivers to detect when  
shock absorbers are worn. Nevertheless,  
the shock absorbers have a major impact on road  
holding and braking performance.  
Using a liquid called AdBlue® that contains  
urea, a catalytic converter turns up to 85% of  
the nitrogen oxides (NOx) into nitrogen and  
water, which are harmless to health and the  
environment.  
Under-inflation increases energy  
consumption. Non-compliant tyre  
For your safety and driving comfort, it is important  
to have them regularly checked by a dealer or a  
qualified workshop.  
pressures cause tyres to wear prematurely and  
have an adverse effect on the vehicle's road  
holding - risk of accident!  
The AdBlue® is contained in a special tank  
holding about 17 litres.  
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Practical information  
Its capacity allows a driving range of  
The SCR system includes a heater for the  
AdBlue® tank, allowing you to continue driving  
in very cold conditions.  
Precautions for use  
AdBlue® is a urea-based solution. This fluid is non-  
flammable, colourless and odourless (when kept  
in a cool place).  
approximately 3,900 miles (6,500 km), which may  
vary considerably depending on your driving style.  
An alert system is triggered once the reserve level  
is reached: it is then possible to drive for a further  
1,500 miles (2,400 km) before the tank is empty  
and the vehicle is immobilised.  
In the event of contact with the skin, wash the  
affected area with soap and running water. In the  
event of contact with the eyes, immediately rinse  
the eyes with large amounts of water or with an  
eye wash solution for at least 15 minutes. Seek  
medical attention if you feel a persistent burning  
sensation or irritation.  
Supply of AdBlue®  
It is recommended that the AdBlue® be topped up  
as soon as the first alert is issued indicating that  
the reserve level has been reached.  
For more information on the Warning and  
indicator lamps and the associated alerts,  
or the Indicators, please refer to the  
corresponding sections.  
For the correct operation of the SCR  
system:  
– Use only AdBlue® fluid that meets the ISO  
If swallowed, immediately wash out the mouth  
with clean water and then drink plenty of water.  
In certain conditions (high temperature, for  
example), the risk of release of ammonia cannot  
be excluded: do not inhale the fluid. Ammonia  
vapours have an irritant effect on mucous  
membranes (eyes, nose and throat).  
22241 standard.  
Once the AdBlue® tank is empty, a device  
required by law prevents the engine from  
being restarted.  
– Never transfer AdBlue® to another container  
as it would lose its purity.  
– Never dilute AdBlue® with water.  
If the SCR system is faulty, the level of  
emissions from the vehicle will no longer meet  
the Euro 6 standard and the vehicle starts  
polluting the environment.  
You can obtain AdBlue® from a dealer or a  
qualified workshop, as well as service stations  
equipped with AdBlue® pumps specially designed  
for passenger vehicles.  
Store AdBlue® out of the reach of children,  
in its original container.  
In the event of a confirmed SCR system  
malfunction, it is essential to visit a dealer or a  
qualified workshop. After 660 miles (1,100 km),  
a device is automatically activated to prevent  
the engine from starting.  
Recommendations on storage  
Procedure  
AdBlue® freezes at about -11°C and deteriorates  
above +25°C. Containers should be stored in a  
cool area and protected from direct sunlight.  
Under these conditions, the fluid can be kept for  
at least a year.  
Before starting the top-up procedure, ensure that  
the vehicle is parked on a flat and level surface.  
In wintry conditions, ensure that the temperature  
of the vehicle is above -11°C. Otherwise the  
AdBlue® may be frozen and so cannot be poured  
into the tank. Park the vehicle in a warmer area  
for a few hours to allow the top-up to be carried  
out.  
In both cases, a range indicator indicates  
the distance that can be travelled before the  
vehicle is stopped.  
If the fluid has frozen, it can be used once it has  
completely thawed out at room temperature.  
Freezing of the AdBlue®  
AdBlue® freezes at temperatures below  
around -11°C.  
Never store AdBlue® containers in your  
vehicle.  
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Practical information  
Never pour the AdBlue® into the Diesel fuel  
tank.  
label carefully before pouring the contents of the  
container into the vehicle's AdBlue tank.  
►ꢀ With an AdBlue® pump: insert the nozzle and  
fill the tank until the nozzle automatically cuts  
out.  
Release procedure  
►ꢀ With the vehicle stationary and the engine  
running, select mode N and switch off the  
ignition.  
If any AdBlue® is splashed, or if there are  
any spillages on the bodywork, rinse  
immediately with cold water or wipe with a  
damp cloth.  
Within 5 seconds:  
In order not to overfill the AdBlue® tank:  
– Add between 10 and 13 litres using  
AdBlue® containers.  
►ꢀ Switch on the ignition again.  
►ꢀ While depressing the brake pedal, move the  
push selector forwards or backwards to confirm  
mode N.  
If the fluid has crystallised, clean it off using a  
sponge and hot water.  
– Stop after the nozzle’s first automatic cut-  
out, if you are refilling at a service station.  
The system only registers AdBlue® top-ups of  
5 litres or more.  
►ꢀ While depressing the brake pedal, press the  
control to release the parking brake.  
►ꢀ Release the brake pedal, switch off the  
ignition.  
Important: in the event of a top-up after an  
AdBlue breakdown, you must wait about  
5 minutes before switching on the ignition,  
without opening the driver's door, unlocking  
the vehicle or bringing the electronic key into  
the passenger compartment.  
If the 5-second time limit is exceeded, the gearbox  
engages mode P; it is then necessary to restart  
the procedure.  
If the AdBlue® tank is completely empty  
– which is confirmed by the message “Top  
up AdBlue: Starting impossible” – it is essential  
to add at least 5 litres.  
Switch on the ignition, then wait for 10  
seconds before starting the engine.  
Reverting to normal operation  
►ꢀ While depressing the brake pedal, restart the  
engine.  
►ꢀ Press the "START/STOP" button to switch off  
Free-wheeling  
the engine.  
Keyless Entry and Start  
In certain situations, it is necessary to put the  
vehicle into free-wheeling mode (e.g. towing, on  
a rolling road, automatic car wash (Wash mode),  
rail or sea transport).  
You must not depress the brake pedal  
while switching the ignition on again, then  
switching it off. If you do, the engine will start,  
requiring you to restart the procedure.  
The procedure varies according to the type of  
gearbox and parking brake.  
/
►ꢀ Turn the blue cap of the AdBlue® tank anti-  
clockwise and remove it.  
►ꢀ With a container of AdBlue®: after checking  
the expiry date, read the instructions on the  

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