Engine fault Citroen DS5 RHD 2014 1.G Owner's Guide

3Practical information
AdBlue ® additive and SCR system
for Blue HDi Diesel engines
To assure respect for the environment and conformity with the new Euro 6 emissions standard, without adversely affecting the per formance or fuel consumption of Diesel
engines, CITROËN has taken the decision to equip its vehicles with an effective system that associates SCR (Selective Catalytic Reduction) with a particle emissions filter (PEF) for the treatment of exhaust gases.
Presentation of the SCR system
Using an additive called AdBlue ® containing urea, ® containing urea, ®
a catalytic converter turns up to 85% of nitrous oxides (NOx) into nitrogen and water, which are harmless to health and the environment.
The AdBlue ® additive is held in a special ® additive is held in a special ®
tank located under the boot at the rear of the vehicle. It has a capacity of 17 litres: this provides a driving range of about 12 500 miles
(20 000 km), after which an alert is triggered warning you when the reserve remaining is enough for just 1 500 miles (2 400 km).
During each scheduled service of your vehicle by a CITROËN dealer or a qualified workshop, the AdBlue ® additive tank is refilled in order to ® additive tank is refilled in order to ®
allow normal operation of the SCR system.
If the estimated mileage between two services is greater than 12 500 miles (20 000 km), we recommend that you go to a dealer to have the necessary top-up carried out.
Once the AdBlue ® tank is empty, ® tank is empty, ®
a system required by regulations prevents starting of the engine.
If the SCR is faulty, the level of emissions from your vehicle will longer meet the Euro 6 standard: you vehicle becomes polluting. In the event of a confirmed fault with the SCR system, you must go to a CITROËN dealer or a qualified workshop as soon as possible: after a running distance of 650 miles (1 100 km), a system will be triggered automatically to prevent engine starting.

Range indicators
When switching on the ignition, an indicator gives an estimate of the distance that can be travelled with your vehicle before engine starting is automatically prevented, once the vehicle starts using the reserve of AdBlue ® or ® or ®
after a fault is detected with the SCR system. In the event of simultaneous system fault and low AdBlue ® level, the shortest range is ® level, the shortest range is ®
the one displayed.
In the event of the risk of non-starting related to a lack of AdBlue ® In the event of the risk of non-starting related to a lack of AdBlue ® In the event of the risk of non-starting related to a lack of AdBlue
The engine start prevention system required by regulations is activated automatically once the AdBlue ® tank ® tank ®
is empty.
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.
Pressing this button displays the driving range temporarily. Above 3 000 miles (5 000 km), the value is not specified.

If it is a temporary fault, the alert disappears once the exhaust gas emissions return to normal.
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.
When switching on the ignition, the UREA, SERVICE and diagnostic warning lamps comes on, accompanied by an audible signal and the display of a message "Emissions fault" to signal a fault with the emissions control system.
In the event of the detection of a fault
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), when switching on the ignition, 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. While driving, the message is displayed every 30 seconds while the fault with the SCR system persists. You should go to a CITROËN dealer or a qualified workshop as soon as possible. If you fail to do this, there is a risk that you will not be able to start your engine.
During an authorised driving phase (between 650 miles and 0 miles) (1 100 km and 0 km)
In the event of a fault with the the SCR emissions control system

7Practical information
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".
Starting prevented
To be able to start the engine, you must call on a CITROËN dealer or a qualified workshop.
You have exceeded the authorised driving limit: the starting prevention system inhibits engine starting.
Freezing of the AdBlue ® Freezing of the AdBlue ® Freezing of the AdBlue additive
The AdBlue ® additive freezes at ® additive freezes at ®
temperatures below around -11°C. The SCR system includes a heater for the AdBlue ® tank. ® tank. ®
In exceptional circumstances (vehicle kept for a long period at temperatures that are constantly below -15°C), an emissions control system fault alert may be related to freezing of the AdBlue ® in your vehicle. ® in your vehicle. ®
Park your vehicle in a warmer area for a few hours until the additive becomes liquid again. The emissions alert does not go off immediately, it will occur after several mile of running.

5Access
DS5_ Additif_en_Chap02_ouvertures_ed03-2015
Boot
 After unlocking the vehicle, press the opening control then raise the tailgate.
Opening from outside
 Press this button until the boot is heard to unlock.
Tailgate release
Unlocking
 Fold back the rear seats to gain access to the lock from inside the boot.  Insert a small screwdriver into hole A of the lock to unlock the tailgate.  Move the latch to the left.
System allowing the mechanical unlocking of the boot in the event of a battery or central locking system malfunction.
Locking after closing
If the fault persists after closing again, the boot will remain locked.
Closing
 Lower the tailgate using the interior grab handle.
Opening from inside
If the tailgate is not closed correctly, engine running or vehicle moving (speed above 6 mph (10 km/h)), a message appears in the instrument panel screen for a few seconds.