Used 1.2 PureTech engine: should you avoid it?

No, not automatically, but it should not be bought on a whim. The 1.2 PureTech has two recognised faults: a timing belt that degrades in the oil, and high oil consumption. Only a well-maintained example, ideally a recent one, limits the risk. Cars built after June 2022 are less exposed, and a warranty extension may work in your favour.

Why is the "wet" timing belt a problem?

On this three-cylinder engine, the timing belt runs in engine oil. This reduces friction, and therefore fuel consumption and CO2 emissions. But the rubber degrades in hot oil. According to L'Automobiliste, the belt frays and releases particles that can clog the strainer, the small mesh that filters the oil.

The lubrication circuit is then disrupted. Test-Achats describes an oil pressure drop that can go as far as complete engine failure. Our guides rate this fault at the highest level of severity: it is the main reason for the "caution" rating on the 1.2 PureTech engine page.

Preventive replacement of the belt is estimated at €600 to €1,000 by L'Automobiliste, which says an engine failure could cost up to ten times as much. This figure is a press estimate, not a quote: always ask a garage for a price.

And what about oil consumption?

The engine is also known for consuming a lot of oil. If the level is not monitored, it can drop low enough to damage the engine. An oil warning light that comes on while the level is correct is, according to L'Automobiliste, a possible sign of a blocked strainer: a garage should be consulted without delay.

What does Stellantis' warranty extension cover?

I was unable to open an official Stellantis or Peugeot page: their websites refused access to our tool. The information therefore comes from the specialist press, which cites the manufacturer.

According to Caradisiac, Stellantis offers exceptional cover of 10 years or 175,000 km, previously 6 years or 100,000 km, in cases of excessive oil consumption or low oil pressure caused by premature degradation of the belt. The reported conditions are:

• servicing followed the manufacturer's recommended schedule, at any qualified professional;
• diagnosis and repair carried out within the approved network;
• only the last three servicing invoices are requested.

Test-Achats considers these conditions too restrictive, in particular the requirement to use the approved network, and criticises Stellantis for not informing the public. This point concerns Belgium, but it shows that the warranty does not apply automatically.

L'Automobiliste also mentions, for new vehicles, an eight-year or 160,000 km warranty since 1 June 2025. I was unable to cross-check this figure with an official source. Ask a dealer in writing, quoting the serial number, whether the car in question is covered.

Which years and versions are affected?

The engine has been around since 2012 and is fitted to many Peugeot, Citroën, DS and Opel models, as well as the Toyota Proace City Verso (see the list in our engine page). Power outputs range from 68 to 155 hp.

Reference point	What the sources say
Before June 2022	Older-generation belt: exposed to degradation
From mid-June 2022	New-generation belt on all engines, according to Stellantis as cited by Caradisiac
From 2023	Excessive oil consumption no longer affects vehicles produced, according to Stellantis as cited by Caradisiac

Fiches-auto notes that versions below 100 hp are in fact older naturally aspirated VTi engines with indirect injection, grouped under the same name. The turbocharged versions of 100 hp and above are the most common. You should therefore check the exact version, not just the engine name.

A separate recall affects 82 hp 1.2 PureTech engines built from 2022 to 2024 (oil jet nozzles, risk of fire in extreme cases), detailed in the Citroën C3 III guide.