Which Peugeot engines have known problems? PureTech, BlueHDi and THP
A few Peugeot engines have known problems that the manufacturer itself acknowledges, or that the ANWB, consumer organisations and parts manufacturers describe. The same engines are often fitted to Citroën, DS and Opel cars too. Below you can read, engine by engine, what the issue is, which build years are involved and what you can do as an owner.
By the team at Autobedrijf Willemsbrug, RDW-approved APK (MOT) test station since 1979 · Updated 4 November 2026
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The short answer
The best-known problem engine at Peugeot is the 1.2 PureTech petrol engine with a timing belt that runs in oil. Stellantis acknowledges excessive oil consumption and premature degradation of the timing belt on previous generations of the PureTech 1.0 and 1.2, and has extended the warranty for these problems, subject to conditions, to 10 years or 180,000 km. For diesels, mainly from Peugeot and Citroën, the Belgian consumer organisation Testaankoop reported complaints about AdBlue warnings in 2023. We can check which engine your Peugeot has from your registration number.
Which Peugeot engines have known problems?
Three Peugeot engine families have problems that have been described by the manufacturer, the ANWB (the Dutch motoring organisation), a consumer organisation or a consumer programme. They are the PureTech petrol engine, the AdBlue system of the BlueHDi diesels and the timing chain of the older THP petrol engine.
| Engine | Fuel | Known problem | Period according to the source |
|---|---|---|---|
| 1.0 and 1.2 PureTech (previous generations) | Petrol | Premature wear of the timing belt and excessive oil consumption | Mainly 2014 to 2017 (ANWB, legal advice), for the 1.2: 2014 to 2019 inclusive (ANWB, PureTech engine) |
| BlueHDi (diesel with AdBlue) | Diesel | AdBlue warning that stays on after topping up | Complaints reported in May 2023, mainly Peugeot and Citroën (Testaankoop) |
| THP (Turbo High Pressure) | Petrol | Timing chain could stretch, a known problem according to Radar (2012) | From 2007 (Radar) |
Sources: Stellantis, ANWB, Testaankoop and Radar (AVROTROS). Checked on 5 November 2026.
Not every Peugeot with these engines develops problems. Maintenance, driving style and the version of the engine all play a part. That is why the engine code matters more than the model name.
What is the problem with the 1.2 PureTech?
The problem with the 1.2 PureTech is that the timing belt, which runs in the engine oil, can wear too early. For previous generations of the PureTech 1.0 and 1.2, Stellantis refers to excessive oil consumption and premature degradation of the timing belt. According to the ANWB, most complaints concern the timing belt. The ANWB also mentions complaints about high oil consumption and problems with the camshaft and the crankshaft.
Parts manufacturer NTN-SNR explains how the wear happens. Unburnt fuel gets into the oil and makes it abrasive. This happens mainly on cars that cover less than 15,000 km a year, mostly in town. Particles that come loose from the belt can block the oil strainer and the vacuum pump. If the vacuum pump fails, the brake servo stops working and, according to NTN-SNR, you have to press the brake pedal much harder.
The 1.2 PureTech in the mild hybrid versions does not have a belt in oil. According to the ANWB, these versions use a timing chain from late 2023. For more about the complaints, the warning signs and replacement, see our page on PureTech engine problems. Which other makes have a belt in oil is shown in our overview of cars with a wet timing belt.
What warranty does Stellantis give on the PureTech engine?
Stellantis has extended the warranty on previous generations of the PureTech 1.0 and 1.2, subject to conditions, to 10 years or 180,000 kilometres. This is stated in a Stellantis press release of 7 May 2025. The extension covers excessive oil consumption and premature degradation of the timing belt. Stellantis mentions cover of 100 percent of the cost of parts and labour, subject to certain conditions. According to Stellantis, this warranty extension has been in place since March 2024.
What problems are there with the BlueHDi diesel and AdBlue?
There were complaints about AdBlue warnings on diesels, mainly from Peugeot and Citroën. This was reported by the Belgian consumer organisation Testaankoop in May 2023. According to Testaankoop, consumer organisations across Europe received complaints. At Peugeot, the diesels with AdBlue are called BlueHDi. AdBlue is a fluid that reduces nitrogen oxide emissions through the SCR system.
Testaankoop does not give build years or engine codes. Not every AdBlue warning has the same cause. The problem can be in the tank, the pump, the heater or a sensor, for example. Read more in our article on an AdBlue fault and its causes (in Dutch). With car diagnostics we read the fault code before anything is replaced.
What was the issue with the THP engine?
On the THP petrol engine, the timing chain could stretch. According to the Dutch consumer programme Radar (2012), this was a known problem. According to Radar, the THP (Turbo High Pressure) was fitted from 2007 to various Peugeot and Citroën models and to the Mini Cooper S, and a stretched chain could lead to a sudden loss of power.
The source does not say what has been arranged for this engine since then. If you have an older Peugeot with a THP engine, read which signs point to a stretched timing chain (in Dutch).
How do you check whether your Peugeot has a recall or scheme?
You check for a recall by registration number in the RDW registration check (in Dutch). The RDW is the Dutch vehicle authority. At the bottom of the Overzicht (overview) tab you can see whether a recall (terugroepactie) is open. According to the ANWB, Stellantis started a recall for PureTech cars built in 2017 and 2018, because of problems with the brake servo and the timing drive. According to the ANWB, many owners have not yet received a letter about it.
- Look up your registration number in the RDW registration check and look at the bottom of the Overzicht tab, under Terugroepacties (recalls).
- If a recall is open, book an appointment with a Peugeot dealer. According to the ANWB, the inspection and the repair are then free of charge.
- Nothing open, but your car has a PureTech from a previous generation? Then ask a Peugeot dealer whether the Stellantis warranty scheme applies to your car.
- Want to know which engine your Peugeot has? Call us with your registration number and we will check which engine you have.
Is the APK (MOT), the compulsory Dutch vehicle inspection, coming up for your Peugeot? Then check the RDW registration check beforehand for an open recall. Have any recall carried out by a Peugeot dealer.
What can you do yourself as a Peugeot owner?
The best protection is servicing according to the Peugeot schedule, with oil that meets the prescribed specification. This is also a condition of the Stellantis warranty scheme. So keep all your service invoices.
- Have the oil changed as soon as the service schedule or the service reminder says so. NTN-SNR advises changing the oil every year on a PureTech that is driven little.
- Check the oil level regularly. A PureTech that uses a lot of oil may point to the problem that Stellantis acknowledges.
- If the brake pedal suddenly feels heavy or the oil warning light comes on, have the car checked straight away.
- Have the timing belt replaced at the moment the service schedule for your engine prescribes.
During a service for your Peugeot we follow the Peugeot schedule and use oil that meets the prescribed specification. If the wet timing belt needs replacing, you get a quote in advance based on your registration number, and we only carry out repairs with your approval. If your car may fall under the Stellantis warranty scheme, we tell you beforehand. According to Stellantis, diagnosis and repair then go through the brand’s dealer network.
Read more
Frequently asked questions
Sources
- Stellantis: Stellantis breidt compensatiebeleid uit voor claims van Europese consumenten op eerdere generaties PureTech 1.0- en 1.2-motoren (in Dutch)
- ANWB: PureTech-motorproblemen: wat zijn je rechten? (in Dutch)
- ANWB: PureTech motor (in Dutch)
- NTN-SNR: TECHinfo 1.2 PureTech Turbo
- Testaankoop: Oproep AdBlue, press release of 5 May 2023 (in Dutch)
- Radar (AVROTROS): Problemen met turbomotor (in Dutch)