Massive recall as Stellantis swaps PureTech belts for chains

Stellantis, the automotive giant behind brands like Peugeot, Citroën, and Opel, has begun replacing oil-bathed timing belts with metal chains in its 1.0 and 1.2 PureTech engines across Europe, following widespread durability issues. Launched in 2022, this initiative includes a large-scale recall to address failures that caused clogged lubrication systems and excessive oil consumption, impacting thousands of vehicles. The affected brands include Peugeot, Citroën, DS, Opel, and Vauxhall, while Fiat and Jeep models, which use different engines, remain unaffected. In Brazil, stricter maintenance schedules for the Peugeot 208 mitigated similar issues. Stellantis has extended warranties and introduced a digital platform for repair reimbursements, aiming to restore consumer trust.

The shift to metal chains prioritizes reliability after attempts to reinforce the belts proved inadequate. The company also phased out the “PureTech” name to distance itself from the controversy. This move aligns with industry trends toward more durable engine components.

• Affected brands: Peugeot, Citroën, DS, Opel, Vauxhall.
• Involved engines: 1.0 and 1.2 PureTech three-cylinder.
• Adopted solution: metal chain replacement in new models.
• Brazil impact: minimal due to rigorous preventive maintenance.

Roots of the oil-bathed belt issues
Introduced by PSA (Peugeot-Citroën) in 2012, the oil-bathed timing belt aimed to blend the quiet operation of traditional belts with the longevity of metal chains. Lubricated by engine oil, the belt was expected to last longer, but poor oil formulations and material flaws led to premature wear. Degraded belt particles clogged filters, ducts, and oil pumps, starving engines of lubrication and causing severe damage.

Stellantis initially tried coating the belts, supplied by Continental, with a protective layer, but oil seepage persisted. The recommended replacement interval, once set at six years or 240,000 km, was slashed to three years or 60,000 km, costing owners around 800 euros (roughly $870).

Stellantis’ recall and corrective actions
To address the crisis, Stellantis rolled out a massive recall to replace faulty belts with reinforced versions or metal chains. The PureTech engine warranty was extended to 10 years or 175,000 km, easing the burden on owners. A digital platform allows reimbursement for repairs done at authorized dealerships, provided proper documentation is submitted.

• Affected engines: first-generation PureTech (2012-2022).
• Recall cost: undisclosed, but spans thousands of vehicles.
• Reimbursement platform: available for dealership repairs.
• Extended warranty: up to 10 years or 175,000 km.

Since 2022, Stellantis has adopted metal chains in updated engines, particularly in 48V mild-hybrid models like the Peugeot 308 with 136 hp. Newer models have largely phased out belts, though some, like the 130-hp Peugeot 308, still use reinforced versions.

Brazil’s limited exposure
In Brazil, the 1.2 PureTech engine appeared only in the Peugeot 208 until 2020, with belt replacements advised every 80,000 km, reducing failure rates. Unlike Europe, where a 240,000-km lifespan was promoted, Brazil’s conservative maintenance approach prevented widespread issues. Fiat and Jeep models, equipped with GSE 1.0 and 1.3 engines using chains, were unaffected.

Stellantis reported few Brazilian cases, with affected owners receiving dealership support. Strict maintenance protocols spared the country the negative publicity seen abroad, where owners faced hefty repair bills.

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Technical evolution and PureTech rebranding
The shift to metal chains marks a strategic pivot for Stellantis. Early PureTech engines, launched in 2012, suffered from design flaws, including belt material and sensitivity to substandard oils. Updated engines, introduced in 2022, incorporate chains, especially in mild-hybrid systems requiring greater durability.

• Chain-equipped engines: 48V mild-hybrids and new 1.2 models.
• Belt-equipped models: Peugeot 308 standard (130 hp).
• Reason for name change: to avoid links to past failures.

Dropping the “PureTech” label aims to refresh the engine lineup’s image. Stellantis now emphasizes reliable technologies, like the chain-driven GSE engines used by Fiat, to rebuild consumer confidence.

Industry-wide implications
Stellantis isn’t alone in grappling with oil-bathed belt failures. In Brazil, Chevrolet faced similar issues with 1.0 and 1.2 engines in models like the Onix, blaming improper oil use. GM extended warranties and upgraded belts, but Stellantis’ switch to chains is a bolder move. Other manufacturers, including Ford and Volkswagen, have encountered comparable challenges, prompting a broader industry shift toward metal chains, despite their noisier operation.

• Other affected brands: Chevrolet, Ford, Volkswagen.
• Chain advantages: greater durability, less maintenance.
• Chain drawbacks: increased noise compared to belts.
• Current trend: resurgence of chains in modern engines.

Guidance for affected vehicle owners
European owners of PureTech-equipped vehicles can check recall eligibility via Stellantis’ official website or authorized dealerships. The reimbursement platform requires proof of repairs, and the extended warranty covers belt-related damages.

In Brazil, former Peugeot 208 owners should adhere to maintenance schedules, replacing oil every 10,000 km with high-quality synthetics to prevent belt degradation, even in reinforced versions.

• Recall verification: Stellantis website or dealerships.
• Maintenance advice: oil changes every 10,000 km.
• Reimbursement proof: dealership repair receipts.
• Recommended oil: synthetic, per vehicle manual.

Stellantis’ engine future
The adoption of metal chains signals a long-term commitment to reliability at Stellantis. With hybrid and electric models shaping the company’s future, robust technologies are prioritized. The oil-bathed belt saga has driven Stellantis to refine its engineering, focusing on low-maintenance, high-durability components to meet consumer demands.