Dieselgate was never just about Volkswagen. A number of European car manufacturers have used so-called "thermal window" technology, software that reduces emissions cleaning at lower and higher temperatures, and which the Court of Justice of the European Union has in principle declared unlawful. The Court of Justice of the European Union has ruled this is unlawful and that affected car owners are entitled to compensation.
So this case applies to you if you own or have owned a diesel car. Any brand.
Register now!
Anyone who owns or has owned a diesel car, regardless of brand, manufactured from approximately 2008 onwards.
It does not matter whether you bought the car new or used. It does not matter whether you still own the car or have sold it. Anyone can register. Which groups will be brought forward is decided when the cases are set up. If you have owned an affected diesel car, you may be entitled to compensation.
Affected brands include Volkswagen, Audi, Skoda, SEAT, Porsche, Mercedes-Benz, BMW, Opel, Fiat, Renault, Peugeot and Citroën. The list will be updated as documentation for each brand is in place.
If you own a diesel car with an EA189 engine from Volkswagen, Audi or Skoda manufactured between 2008 and 2015, see Dieselgate instead — that case has its own track.
A thermal window is software in a diesel car's engine management system that automatically reduces emissions cleaning when the outside temperature drops below a certain level. In practice, this means the car emits significantly more nitrogen oxide (NOx) under normal driving conditions than during laboratory testing.
Read more about thermal windows.
Car manufacturers have claimed this is necessary to protect the engine. The Court of Justice of the European Union rejected this argument. In case C-666/23 (1 August 2025), the court ruled that thermal windows constitute illegal defeat devices and that manufacturers cannot hide behind national type approvals.
In September 2025, a German court (OVG Schleswig-Holstein) went further and ruled that type approvals granted to vehicles with illegal software must be revoked. This could lead to millions of cars across Europe losing their type approval.
Nothing. It is completely free to register and participate. You pay nothing unless the case is won.
If the case succeeds, you receive 65% of the compensation. The remainder covers lawyers, litigation funding and platform operating costs.
| Share | Example (€ 2,500) | |
|---|---|---|
| You (participant) | 65% | € 1,625 |
| Lawyers and funding | 30% | € 750 |
| Platform fee | 5% | € 125 |
Compensation amounts vary based on vehicle purchase price, age and usage. The CJEU ruling in C-666/23 allows for up to 15% of the purchase price as compensation.
| Purchase price | Typical compensation (5–15%) |
|---|---|
| € 20,000 | € 1,000 – 3,000 |
| € 35,000 | € 1,750 – 5,250 |
| € 50,000 | € 2,500 – 7,500 |
| € 70,000 | € 3,500 – 10,500 |
This is a compensation claim — not a car repair. It is based on the fact that you paid full price for a car that contained illegal software. The EU court has determined that you are entitled to compensation for this.
Where the claims are brought is decided per car brand once the cases have been collected. Norway is a real alternative: the two Norwegian class actions against Volkswagen and Møller were allowed to proceed by the Supreme Court and the Borgarting Court of Appeal in 2026. Germany is the other alternative, where most manufacturers have their headquarters and where the courts have handled diesel claims at scale. In 2020, Volkswagen offered 260,000 German car owners a settlement within a framework of 830 million euros. ClaimShare works with lawyers in both countries and chooses the route that gives participants the best prospects for each brand.
The thermal window issue is now legally settled through the CJEU rulings and the German Schleswig-Holstein decision. The legal foundation is stronger than ever.
| Date | Event |
|---|---|
| July 2022 | CJEU (C-128/20, C-134/20, C-145/20): The temperature window is in principle a prohibited defeat device, even when it has been installed as an update. Consumers have the right to compensation. |
| March 2023 | CJEU (C-100/21, Mercedes-Benz): Anyone who has bought a car with an illegal defeat device is entitled to compensation from the manufacturer, regardless of brand. Negligence is sufficient; intent is not required. |
| March 2023 | European Commission confirms in letter to ClaimShare that this applies to EEA and thus Norwegian car owners. |
| August 2025 | CJEU (C-666/23, Volkswagen AG): Type approval does not exempt the manufacturer. Liability also covers software updates installed after sale. Compensation up to 15% of purchase price. |
| September 2025 | OVG Schleswig-Holstein (Germany) rules that the type approval for vehicles with illegal software must be revoked. The ruling has been appealed to the Bundesverwaltungsgericht. |
| February 2026 | European Commission sends third official letter to ClaimShare. Cites C-666/23 and states that procedural obstacles making it impossible for consumers to obtain compensation violate the principle of effectiveness. |
| Country | Type | Compensation |
|---|---|---|
| USA | Settlement | Over € 10 billion total |
| Germany | Settlements + individual judgments | Over 300,000 car owners compensated |
| Netherlands | Settlement (2025) | € 300–2,500 per car |
| United Kingdom | Settlement (2022) | £ 193 million / 91,000 car owners |
| Italy | Judgment (2021) | € 3,300 per car + interest |
| Austria | Judgment | Up to € 14,520 per car |
Norway is one of the last large markets where affected car owners have not received compensation.
Sign up with your vehicle information. It takes just a few minutes.
The claims are grouped by car brand, and together with our Norwegian and German lawyers we decide where each brand can best be pursued.
Dieselgate specialists in the country where the case is pursued handle the legal proceedings. You do not need to do anything else.
65% of the compensation is paid directly to you. If we do not win, it costs you nothing.
- It is completely free to register and participate.
- You pay nothing unless the case is won.
- Do not wait too long.
- Dieselgate 2.0 covers many diesel cars, regardless of brand. If you have a VW/Audi/Skoda with an EA189 engine (2008–2015), see Dieselgate instead.
- If you are already registered with Bilklager, you must also register here to participate in this case. Your Bilklager registration applies to the Norwegian legal process. (Important: If you are already registered with Bilklager and you have replied "yes" to whether Bilklager can transfer your case to Car.Claims / ClaimShare, you do not need to register your case again here.)
ClaimShare is a European platform for collective consumer litigation. We coordinate legal proceedings across borders and ensure that consumers receive the compensation they are entitled to — regardless of where they live.
Car.claims is ClaimShare's website for recruiting participants to European consumer cases.
Bilklager.no, which has represented Norwegian Dieselgate owners since 2016, is the foundation on which ClaimShare is built. Over 10,000 Norwegian car owners and a decade of experience with the Dieselgate case form the basis for the European expansion.
Register now — it is free and takes just a few minutes.
Dieselgate was never just about Volkswagen. A number of European car manufacturers have used so-called "thermal window" technology, software that reduces emissions cleaning at lower and higher temperatures, and which the Court of Justice of the European Union has in principle declared unlawful. The Court of Justice of the European Union has ruled this is unlawful and that affected car owners are entitled to compensation.
So this case applies to you if you own or have owned a diesel car. Any brand.
Register now!
Anyone who owns or has owned a diesel car, regardless of brand, manufactured from approximately 2008 onwards.
It does not matter whether you bought the car new or used. It does not matter whether you still own the car or have sold it. Anyone can register. Which groups will be brought forward is decided when the cases are set up. If you have owned an affected diesel car, you may be entitled to compensation.
Affected brands include Volkswagen, Audi, Skoda, SEAT, Porsche, Mercedes-Benz, BMW, Opel, Fiat, Renault, Peugeot and Citroën. The list will be updated as documentation for each brand is in place.
If you own a diesel car with an EA189 engine from Volkswagen, Audi or Skoda manufactured between 2008 and 2015, see Dieselgate instead — that case has its own track.
A thermal window is software in a diesel car's engine management system that automatically reduces emissions cleaning when the outside temperature drops below a certain level. In practice, this means the car emits significantly more nitrogen oxide (NOx) under normal driving conditions than during laboratory testing.
Read more about thermal windows.
Car manufacturers have claimed this is necessary to protect the engine. The Court of Justice of the European Union rejected this argument. In case C-666/23 (1 August 2025), the court ruled that thermal windows constitute illegal defeat devices and that manufacturers cannot hide behind national type approvals.
In September 2025, a German court (OVG Schleswig-Holstein) went further and ruled that type approvals granted to vehicles with illegal software must be revoked. This could lead to millions of cars across Europe losing their type approval.
Nothing. It is completely free to register and participate. You pay nothing unless the case is won.
If the case succeeds, you receive 65% of the compensation. The remainder covers lawyers, litigation funding and platform operating costs.
| Share | Example (€ 2,500) | |
|---|---|---|
| You (participant) | 65% | € 1,625 |
| Lawyers and funding | 30% | € 750 |
| Platform fee | 5% | € 125 |
Compensation amounts vary based on vehicle purchase price, age and usage. The CJEU ruling in C-666/23 allows for up to 15% of the purchase price as compensation.
| Purchase price | Typical compensation (5–15%) |
|---|---|
| € 20,000 | € 1,000 – 3,000 |
| € 35,000 | € 1,750 – 5,250 |
| € 50,000 | € 2,500 – 7,500 |
| € 70,000 | € 3,500 – 10,500 |
This is a compensation claim — not a car repair. It is based on the fact that you paid full price for a car that contained illegal software. The EU court has determined that you are entitled to compensation for this.
Where the claims are brought is decided per car brand once the cases have been collected. Norway is a real alternative: the two Norwegian class actions against Volkswagen and Møller were allowed to proceed by the Supreme Court and the Borgarting Court of Appeal in 2026. Germany is the other alternative, where most manufacturers have their headquarters and where the courts have handled diesel claims at scale. In 2020, Volkswagen offered 260,000 German car owners a settlement within a framework of 830 million euros. ClaimShare works with lawyers in both countries and chooses the route that gives participants the best prospects for each brand.
The thermal window issue is now legally settled through the CJEU rulings and the German Schleswig-Holstein decision. The legal foundation is stronger than ever.
| Date | Event |
|---|---|
| July 2022 | CJEU (C-128/20, C-134/20, C-145/20): The temperature window is in principle a prohibited defeat device, even when it has been installed as an update. Consumers have the right to compensation. |
| March 2023 | CJEU (C-100/21, Mercedes-Benz): Anyone who has bought a car with an illegal defeat device is entitled to compensation from the manufacturer, regardless of brand. Negligence is sufficient; intent is not required. |
| March 2023 | European Commission confirms in letter to ClaimShare that this applies to EEA and thus Norwegian car owners. |
| August 2025 | CJEU (C-666/23, Volkswagen AG): Type approval does not exempt the manufacturer. Liability also covers software updates installed after sale. Compensation up to 15% of purchase price. |
| September 2025 | OVG Schleswig-Holstein (Germany) rules that the type approval for vehicles with illegal software must be revoked. The ruling has been appealed to the Bundesverwaltungsgericht. |
| February 2026 | European Commission sends third official letter to ClaimShare. Cites C-666/23 and states that procedural obstacles making it impossible for consumers to obtain compensation violate the principle of effectiveness. |
| Country | Type | Compensation |
|---|---|---|
| USA | Settlement | Over € 10 billion total |
| Germany | Settlements + individual judgments | Over 300,000 car owners compensated |
| Netherlands | Settlement (2025) | € 300–2,500 per car |
| United Kingdom | Settlement (2022) | £ 193 million / 91,000 car owners |
| Italy | Judgment (2021) | € 3,300 per car + interest |
| Austria | Judgment | Up to € 14,520 per car |
Norway is one of the last large markets where affected car owners have not received compensation.
Sign up with your vehicle information. It takes just a few minutes.
The claims are grouped by car brand, and together with our Norwegian and German lawyers we decide where each brand can best be pursued.
Dieselgate specialists in the country where the case is pursued handle the legal proceedings. You do not need to do anything else.
65% of the compensation is paid directly to you. If we do not win, it costs you nothing.
- It is completely free to register and participate.
- You pay nothing unless the case is won.
- Do not wait too long.
- Dieselgate 2.0 covers many diesel cars, regardless of brand. If you have a VW/Audi/Skoda with an EA189 engine (2008–2015), see Dieselgate instead.
- If you are already registered with Bilklager, you must also register here to participate in this case. Your Bilklager registration applies to the Norwegian legal process. (Important: If you are already registered with Bilklager and you have replied "yes" to whether Bilklager can transfer your case to Car.Claims / ClaimShare, you do not need to register your case again here.)
ClaimShare is a European platform for collective consumer litigation. We coordinate legal proceedings across borders and ensure that consumers receive the compensation they are entitled to — regardless of where they live.
Car.claims is ClaimShare's website for recruiting participants to European consumer cases.
Bilklager.no, which has represented Norwegian Dieselgate owners since 2016, is the foundation on which ClaimShare is built. Over 10,000 Norwegian car owners and a decade of experience with the Dieselgate case form the basis for the European expansion.
Register now — it is free and takes just a few minutes.