Instruments -> AdBlue fluid range indicators for Your DS 4 4 Door Second Generation (2021-2026)

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Instruments  
AdBlue® fluid range indicators  
Once the AdBlue® tank is on reserve or after  
detection of a fault with the SCR emissions  
control system, when the ignition is switched  
on an indicator displays an estimate of the  
distance that can be covered, the range, before  
engine starting is prevented.  
In the event of the risk of non-starting related to a lack of AdBlue®  
Type 1 instrument panel  
The engine start prevention system  
required by regulations is activated  
automatically once the AdBlue® tank  
is empty.  
Remaining range between 350 and 1 500 miles (600 and 2 400 km)  
In the event of simultaneous system fault and  
low AdBlue® level, the shortest range figure is  
the one displayed.  
When switching on the ignition, the UREA  
warning lamp comes on, accompanied by an  
audible signal and the temporary display in  
the instrument panel of "NO START IN" and  
a distance, indicating the remaining range  
expressed in miles or kilometres before  
engine starting is prevented (e.g. "NO START  
IN 900 miles" means that starting will be  
prevented in 900 miles).  
Range greater than 1 500 miles (2 400 km)  
When the ignition is switched on, no  
information on range is displayed automatically  
in the instrument panel.  
When driving, the message is displayed every  
190 miles (300 km) until the AdBlue tank has  
been topped up.  
With the type 2 instrument panel,  
pressing this button temporarily  
displays the driving range.  
The reserve level has been reached; it is  
recommended that the tank be topped up as  
soon as possible.  
It is recommended that no more than 10 litres  
of AdBlue® are added.  
Above 3 000 miles (5 000 km), the value is not  
specified.  
For more information on AdBlue® and the SCR  
system, and in particular on topping up, refer  
to the corresponding section.  
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Instruments  
Remaining range between 0 and 350 miles (0 and 600 km)  
Breakdown related to a lack of AdBlue®  
When switching on the ignition, the SERVICE  
warning lamp comes on and the UREA warning  
lamp flashes, accompanied by an audible signal  
and the temporary display in the instrument  
panel of "NO START IN" and a distance,  
indicating the remaining range expressed in  
miles or kilometres before engine starting is  
prevented (e.g. "NO START IN 180 miles"  
means that starting will be prevented  
in 180 miles).  
When switching on the ignition, the SERVICE  
warning lamp comes on and the UREA  
warning lamp flashes, accompanied by an  
audible signal and the temporary display in the  
instrument panel of "NO START IN" and 0 km  
or miles ("NO START IN 0 miles" means that  
starting is prevented).  
To be able to start the engine, it is  
essential to add at least 3.8 litres of  
AdBlue® to the tank.  
For more information on AdBlue® and  
the SCR system, and in particular on  
topping up, refer to the corresponding  
section.  
The AdBlue tank is empty: the system required  
by regulations prevents engine starting.  
When driving, the message is displayed every  
30 seconds until the AdBlue tank has been  
topped up.  
It is essential to top up the tank as soon  
as possible before it is completely empty;  
otherwise, the engine may no longer start.  
For more information on AdBlue® and the SCR  
system, and in particular on topping up, refer  
to the corresponding section.  
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Instruments  
Type 2 instrument panel  
Remaining range between 350 and 1500 miles (600 and 2 400 km)  
Remaining range between 0 and 350 miles (0 and 600 km)  
Breakdown related to a lack of AdBlue®  
When switching on the ignition, the  
UREA warning lamp comes on, accompanied  
by an audible signal and the display of a  
message (e.g. "Top-up emissions additive:  
Starting prevented in 900 miles") indicating  
the remaining range expressed in miles or  
kilometres.  
When switching on the ignition, the SERVICE  
warning lamp comes on and the UREA warning  
lamp flashes, accompanied by an audible  
signal and the display of a message (e.g.  
"Top-up emissions additive: Starting prevented  
in 350 miles") indicating the remaining range  
expressed in miles or kilometres.  
When switching on the ignition, the SERVICE  
warning lamp comes on and the UREA warning  
lamp flashes, accompanied by an audible  
signal and the display of the message "Top-up  
emissions additive: Starting prevented".  
The AdBlue® tank is empty: the system required  
by regulations prevents engine starting.  
When driving, the message is displayed every  
200 miles (300 km) until the fluid has been  
topped-up.  
Go to a CITROËN dealer or a qualified  
workshop to have the AdBlue® topped-up.  
You can also top-up the tank yourself.  
For more information on AdBlue® and the SCR  
system, and in particular on topping-up the  
AdBlue®, refer to the corresponding section.  
When driving, the message is displayed every  
30 seconds until the fluid has been topped-up.  
Go to a CITROËN dealer or a qualified  
workshop to have the AdBlue® topped-up.  
You can also top-up the tank yourself.  
Otherwise you will not be able to restart your  
engine.  
To be able to start the engine,  
we recommend that you call on  
a CITROËN dealer or a qualified  
workshop for the top-up required.  
If you carry out the top-up yourself, it  
is essential to add at least 3.8 litres of  
AdBlue® to the tank.  
For more information on AdBlue® and the SCR  
system, and in particular on topping-up the  
AdBlue®, refer to the corresponding section.  
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Instruments  
In the event of a fault with the the SCR emissions control system  
Type 1 instrument panel  
A system that prevents engine starting is activated automatically from 650 miles (1 100 km) after confirmation of a fault with the SCR emissions  
control system. Have the system checked by a CITROËN dealer or a qualified workshop as soon as possible.  
In the event of the detection of a fault  
During an authorised driving phase  
(between 650 miles and 0 miles) (1 100 km and 0 km)  
The UREA, SERVICE and diagnostic warning  
lamps comes on, accompanied by an audible  
signal and the display of the message  
"Emissions fault".  
The alert is triggered when driving, when  
the fault is detected for the first time, then  
when switching on the ignition for subsequent  
journeys, while the fault persists.  
If a fault with the SCR system is confirmed  
(after 30 miles (50 km) covered with the  
permanent display of the message signalling  
a fault), the SERVICE and engine diagnostic  
warning lamps come on and the UREA  
warning lamp flashes, accompanied by an  
audible signal and the temporary display in  
the instrument panel of "NO START IN" and  
a distance, indicating the remaining range  
express in miles or kilometres before engine  
starting is prevented - (e.g.: "NO START IN  
350 miles" means "Starting will be prevented in  
350 miles").  
While driving, this display appears every  
30 seconds while the fault with the SCR system  
persists.  
The alert is repeated when switching on the  
ignition.  
You should go to a CITROËN dealer or a  
qualified workshop as soon as possible.  
Otherwise, you will not be able to restart your  
engine.  
If it is a temporary fault, the alert  
disappears during the next journey,  
after a self diagnosis test of the SCR  
emissions control system.  
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41  
Instruments  
In the event of a fault with the SCR emissions control system  
Type 2 instrument panel  
Starting prevented  
In the event of the detection of a fault  
A system that prevents engine  
starting is activated automatically  
from 650 miles (1 100 km) after  
confirmation of a fault with the SCR  
emissions control system. Have the  
system checked by a CITROËN dealer  
or a qualified workshop as soon as  
possible.  
The UREA, SERVICE and diagnostic warning  
lamps comes on, accompanied by an audible  
signal and the display of the message  
"Emissions fault".  
The alert is triggered when driving when the  
fault is detected for the first time, then when  
switching on the ignition for subsequent  
journeys, while the fault persists.  
Every time the ignition is switched on, the  
SERVICE and engine diagnostic warning  
lamps come on and the UREA warning lamp  
flashes, accompanied by the temporary display  
of "NO START IN" and 0 miles or kilometres -  
("NO START IN 0 miles" means "Starting  
prevented").  
You have exceeded the authorised  
driving limit: the starting prevention  
system inhibits engine starting.  
If it is a temporary fault, the alert  
disappears during the next journey,  
after self-diagnosis of the SCR system.  
To be able to start the engine, you must call on  
a CITROËN dealer or a qualified workshop.  
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Instruments  
During an authorised driving phase (between  
650 miles and 0 miles) (1 100 km and 0 km)  
Starting prevented  
If a fault with the SCR system is confirmed  
(after 30 miles (50 km) covered with the  
permanent display of the message signalling  
a fault), the SERVICE and engine diagnostic  
warning lamps come on and the UREA  
warning lamp flashes, accompanied by an  
audible signal and the display of a message  
(e.g.: "Emissions fault: Starting prevented in  
150 miles") indicating the remaining range  
express in miles or kilometres.  
Every time the ignition is switched on, the SERVICE  
and engine diagnostic warning lamps come on and  
the UREA warning lamp flashes, accompanied by  
an audible signal and the display of the message  
"Emissions fault: Starting prevented".  
You have exceeded the authorised  
driving limit: the starting prevention  
system inhibits engine starting.  
While driving, the message is displayed every  
30 seconds while the fault with the SCR system  
persists.  
To be able to start the engine, you must call on  
a CITROËN dealer or a qualified workshop.  
The alert is repeated when switching on the  
ignition.  
You should go to a CITROËN dealer or a  
qualified workshop as soon as possible.  
Otherwise, you will not be able to restart your  
engine.