Issue with Stellantis' PureTech engines: Everything you need to know
700.000 Spanish cars with a Puretech 1.2 engine have a problem.
This engine, present in multiple models from the brands Peugeot, Citroën, Opel, and DS, has raised significant concerns due to serious mechanical failures.
If you own a vehicle equipped with this technology, it is crucial that you are aware of the risks, possible solutions, and how you can assert your rights.
Table of Contents
What is the PureTech 1.2 engine?
The PureTech 1.2 engine is a petrol innovation developed by Stellantis Group, known for its efficiency and low emissions.
However, it has gained notoriety for recurring problems, especially with the timing belt in an oil bath. This component, designed to minimize wear and improve performance, has proven to be susceptible to premature deterioration, which can lead to failures and breakdowns costing over 9.000€.
Which vehicles are affected?
Models of Peugeot, Citroën, Opel, Toyota, Jeep, Fiat and DS affected
Engine issues with the PureTech 1.2 affect models manufactured between 2012 and 2023. Some affected brands include:
- Citroën: C1, C3, C3 Aircross, C3 Picasso, C3 Cactus, C4, C4 X, C4 Cactus, C4 Picasso, Grand C4 Picasso, C4 Spacetourer, Grand C4 Spacetourer, C5 X, C5 Aircross, C Elysee, Berlingo
- Peugeot: 108, 208, 308, 408, 508, 2008, 3008, 5008, Partner, Rifter, 301
- Opel: Corsa, Astra, Crossland, Crossland X, Grandland, Mokka, Combo
- Toyota: Proace, Proace City, Proace City Verso
- DS: Ds 3, Ds 3 Crossback, Ds 4, Ds 4 Crossback, Ds 7, Ds 7 Crossback
- Jeep: Avenger
- Fiat: Doblo
Why is the PureTech engine experiencing issues?
The factory defect in the STELLANTIS PureTech 1.2 engine is mainly due to the choice and design of the “wet” timing belt as the transmission system (belt in oil). The technical and design factors contributing to this problem are detailed below:
1. Wet Timing Belt Design
The timing belt of the PureTech 1.2 engine is submerged in the engine oil. This design aims to reduce noise and friction, improving engine efficiency. However, it presents several critical issues:
- Premature Wear: Constant exposure to oil and high engine temperatures accelerates the wear of the rubber belt. As the belt deteriorates, it releases small rubber particles into the oil.
- Material Incompatibility: Chemical interactions between the belt rubber, oil additives, or gasoline that sometimes leaks into the crankcase accelerate belt wear and degradation, affecting its integrity and functionality.
2. Oil Contamination
Rubber particles released by the belt contaminate the engine oil, negatively affecting its lubrication and cooling capacity. Oil contamination leads to several issues:
- Loss of Lubricating Efficiency: Contaminated oil loses its ability to effectively lubricate the engine’s moving parts, increasing friction and wear.
- Component Obstruction: Particles can clog the oil pump mesh and other lubrication channels, reducing oil flow and causing inadequate lubrication.
3. Impact on Performance and Safety
Oil contamination and premature belt wear affect vehicle safety and various performance aspects:
- Engine Overheating: Additional friction and inadequate lubrication can cause engine overheating, increasing the risk of catastrophic failures.
- Braking System Failures: Oil contamination can affect the braking system, stiffening the pedals and compromising vehicle safety.
- Internal Component Wear: Contaminated oil acts as an abrasive, accelerating the wear of critical components such as valves, piston rings, and the crankshaft.
4. Compliance with Emissions Regulations
The PureTech 1.2 engine was designed to comply with strict European emissions regulations (EURO 6), leading to the adoption of technologies like the wet timing belt to improve efficiency. However, these technical decisions, aimed at meeting emissions regulations and reducing costs, resulted in compromises in engine durability and reliability.
Consequences of PureTech engine failures
Below are the main common faults associated with this engine, based on the testimonies of AFESTEL associates, experts, and the specialized press.
1. Oil Overconsumption and Low Oil Pressure
Oil Overconsumption: The PureTech 1.2 engine tends to consume oil excessively, forcing owners to top it up more frequently than normal.
Low Oil Pressure: Oil contamination with rubber particles from the timing belt can cause a reduction in oil pressure, affecting engine lubrication and potentially resulting in Dashboard warning due to low pressure.
MONTHLY COST: €150
2. Timing Belt Degradation
The “wet” timing belt wears prematurely due to constant exposure to gasoline leaks and high engine temperatures. This can result in premature belt wear, release of rubber particles into the engine oil, and subsequent engine blockage or belt breakage which could lead to complete engine failure.
REPAIR COST: 1.500 € – 7.500 €
3. Issues with Oil Pump and Vacuum Pump
Rubber particles released by the belt can clog the oil pump and vacuum pump, leading to reduced oil flow and vacuum pump efficiency on one hand, and lubrication failures on the other hand, potentially causing engine damage.
The vacuum pump can be damaged due to belt material abrasion and as a result, braking assistance may be reduced or lost, increasing the risk of an accident.
This risk has been documented in various European Union countries as reported in these two EU Alerts: Safety Gate EU Citroën and DS, Safety Gate EU Peugeot
COST: 1.500 € – 4.500 €
4. Metallic Noise and Auto-Ignition
A metallic noise in the engine caused by internal wear and increased friction, as well as uncontrolled ignition of the air-fuel mixture in the combustion chamber, can result in vibrations, abnormal noises, and potential damage to pistons and cylinders.
REPAIR COST: 2.000 € – 4.500 €
5. Poor Valve Sealing and Segment Defect
Faulty valves allow air and oil leaks, affecting engine performance. On the other hand, segment defects cause issues in piston rings affecting compression and allowing oil entry into the combustion chamber leading to smoke, pollution, and fire risk.
REPAIR COST: 1.500 € – 4.000 €
6. Power Loss and Jerking During Driving
Reduced engine performance due to the aforementioned problems affects car acceleration and overall efficiency.
Some AFESTEL associates have reported jerking during driving especially at low speeds or when changing gears.
COST: 700 € – 1.400 €
7. Brake Pedal Stiffening
Oil contamination can affect the braking system, stiffening the pedal and compromising vehicle safety.
COST: 1.200 € – 3.000 €
8. Engine Failure
The accumulation of problems can culminate in total engine breakdown, with repair costs potentially exceeding the vehicle’s value.
COST: 4.000 € – 9.000 €
9. Premature Wear of Various Engine Components
Contaminated oil acts as an abrasive, accelerating the wear of critical engine components, such as valves, piston rings, and the crankshaft.
COST: 1.200 € – 3.000 €
Available solutions for affected homeowners
Repair Procedures and Warranties
If your vehicle is affected, options include repairs partially covered by extended warranties or special service programs. It is essential to contact an authorised dealer to verify the solutions applicable to your case.
Class Action Lawsuit for PureTech Engine Issues
How to join the collective claim?
More than 6.000 owners have joined forces to demand compensation. To participate, you need to meet requirements such as proving ownership of the vehicle and having the necessary documentation. The steps are simple and the process can be completed entirely online.
Benefits of joining the collective claim
Joining a collective action allows you to access compensations that can cover up to 50% of the car’s purchase value and repairs made. Additionally, it amplifies the pressure on the manufacturer to resolve the issues fairly.
Why should I claim?
Claiming is crucial to protecting your rights as the owner of a STELLANTIS vehicle with a 1.2 PureTech engine. Recurring problems with the oil bath belt can lead to serious mechanical failures and costly repairs. By joining the collective action, you are seeking fair compensation and helping to pressure the company to take corrective measures.
Furthermore, being part of this initiative allows you to join forces with over 5.000 owners who have already joined, strengthening the out-of-court claim and increasing the chances of success. The unity of so many affected individuals not only makes the voice stronger but also increases the pressure on STELLANTIS to address the issue.
Don’t miss the opportunity to get the necessary repairs without incurring additional expenses. Claiming is not only a right but also a way to ensure that your vehicle operates correctly and to prevent future problems that may affect your safety and finances. Additionally, known issues can lead to a devaluation of the selling price of your vehicle, as the market becomes aware of the problem, affecting its value.
Finally, by participating in this collective action, you help set a precedent that can benefit other owners in the future. Joint action demonstrates that consumers have power when they organise and act together to protect their interests and demand justice.
About Puretech Legal
In PureTech Legal we are dedicated advocates for consumer rights in Spain. Inspired by successful collective actions in France, we have set out to provide a voice and legal solutions to those affected by defects in 1.2 PureTech engines.
We collaborate exclusively with AFESTEL to represent the over 4.000 members of the platform. Join us and claim with no initial costs of any kind.
We have an expert legal team that combines technical and legal knowledge, ensuring that your concerns are not only heard but effectively addressed. We are committed to transparency, justice, and proactively seeking positive outcomes for our clients. We connect individuals, build strong cases, and fight for the compensation you deserve.
Why claim with us?
Free legal advice
Claiming with us guarantees you a simple and efficient process, backed by legal experts with extensive experience in class actions. Our team is dedicated to providing you with personalised advice to ensure you receive the compensation you deserve and protect your consumer rights.
In addition, we handle all the necessary documentation and procedures, freeing you from complications. With us, you will be supported at every step of the process, from registration to the resolution of your claim. Join us and together we will assert your rights effectively and stress-free.
- Feasibility study completely free of charge
- If you don't win, you don't pay us.
- We take care of everything and cover all legal expenses.
- Managed by expert solicitors
Check your case
Join the Stellantis PureTech class action lawsuit and claim what is rightfully yours!