Practical information -> Misfuel prevention (Diesel) for Your DS 7 Crossback 4 Door First Generation (2017-2022)

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Practical information  
The vehicle is fitted with a catalytic converter, a  
device which helps to reduce the level of harmful  
emissions in the exhaust gases.  
For petrol engines, you must use unleaded fuel.  
The filler neck is narrower, allowing only unleaded  
petrol nozzles to be introduced.  
Do not persist but introduce a Diesel type filler  
nozzle.  
It remains possible to use a fuel jerrycan  
to fill the tank.  
Travelling abroad  
If you have put in the wrong fuel for the  
vehicle, you must have the fuel tank  
drained and filled with the correct fuel before  
starting the engine.  
As Diesel fuel pump nozzles may be  
different in other countries, the presence  
of the misfuel prevention device may make  
refuelling impossible.  
The filler cap is built into the flap.  
►ꢀ Take care to select the pump that delivers the  
correct fuel type for the vehicle's engine (see a  
reminder label on the inside of the filler flap).  
Before travelling abroad, it is advisable to  
check with a dealer if the vehicle is suitable  
for the distribution equipment of the countries  
visited.  
Misfuel prevention (Diesel)  
(Depending on country of sale.)  
This mechanical device prevents filling the tank of  
a Diesel vehicle with petrol.  
Located in the filler neck, the misfuel prevention  
device is visible when the filler cap is removed.  
Hybrid system  
Operation  
Electrical system  
The electrical system of the hybrid system is  
identified by orange cables and its elements are  
marked with this symbol:  
►ꢀ Introduce the filler nozzle and push it in as  
far as possible before starting to refuel (risk of  
blowback).  
The hybrid engine uses a voltage of  
between 240 V and 400 V. This system  
When a petrol filler nozzle is inserted into the  
fuel filler neck of a Diesel vehicle, it comes into  
contact with the flap. The system remains closed  
and prevents filling.  
may be hot during and after switching off the  
ignition. Observe the warning messages on the  
labels in the vehicle, especially in the flap.  
Any work on or modification to the vehicle's  
electrical system (battery, connectors, orange  
►ꢀ Fill the tank.  
Do not continue past the 3rd cut-off of the nozzle;  
as this may cause malfunctions.  
►ꢀ Push the filler flap to close it.