Citroën Diesel Emissions Claims

Claim Now

To ensure we give you the most tailored advice regarding your data breach enquiry, we kindly request that you complete our specialised enquiry form. You can access the form
by clicking on the following button: Click here

Click here to return to the previous window

Make a Claim with Thompsons Solicitors in Scotland


You could make a claim against Citroën if you owned or leased a Citroën diesel vehicle between 2009 and 2020. 


To find out if your vehicle is eligible, check the registration number by clicking the button below.

Citroën diesel vehicle claims

Citroën vehicles are manufactured by Stellantis (the global motor manufacturer formed as a result of the 2021 cross-border merger between Chrysler Automobiles and the PSA Group). According to French newspaper Le Monde, around 1.9 million vehicles produced by PSA may have had software enabled to help cheat emissions testing.

Drivers of any Citroën diesel vehicle fitted with a cheat device (also known as a defeat device) could be eligible for compensation.

Speaking to Clyde 1 radio, Patrick McGuire, partner at Thompsons Solicitors in Scotland, said that the use of cheat devices is almost industry-wide in the motor manufacturing sector. He made calls for manufacturers who broke the law to provide compensation for drivers who are now victims of the diesel emissions scandal.  

Clyde 1 radio quoted a representative of Stellantis UK who denied the claims of wrongdoing, saying that their vehicles "comply with all applicable regulations".

Emissions investigations are still ongoing  

Compared to the original Dieselgate scandal, the investigations into Citroën diesel vehicles are still at a relatively early stage and more information will become available as time goes by.

However, in research carried out by the European Commission's in-house science team, the Joint Research Centre (JCR), in August 2016, suspicious results were found when a 2015 Citroën C4 Cactus was tested.

Pollution levels during official New European Driving Cycle (NEDC) testing and Worldwide harmonised Light vehicles Test Procedures (WLTP) were affected greatly by adjusting certain parameters of the test.

At the time, MEP Claude Turmes told EUobserver that the test results looked like "optimisation just to pass the test" and that Citroën was apparently unconcerned by the effect on people's health of higher pollutant emissions.

In 2017 the French consumer watchdog, the Directorate General for Competition Policy, Consumer Affairs and Fraud Control (DGCCRF), began an investigation after seized documents appeared to show that some Citroën vehicles were showing diesel emission irregularities.

It's likely that affected Citroën models will have been manufactured between 2009 and 2018, but this may change as more research is carried out. In the meantime, if you owned or leased a Citroën diesel vehicle between 2009 and 2020, use our Registration Checker tool below to see whether you could make a claim.

Start your Citroën diesel emissions claim today

Find out if you could make a diesel emissions claim for your Citroën vehicle by using our Registration Checker tool. All you need is the GB registration number of your Citroën vehicle and an approximate date at which you owned, leased or financed the vehicle.

We will tell you immediately whether your vehicle is eligible and if so, we will guide you through the claim process.

Click on the button below.

Injured through no fault of your own?
Call us on
To see how much you could claim
Compensation Specialists
Our offices and meeting places
Talk to Thompsons
Claim Now