THE PureTech 1.6 engine from Stellantis offers a impressive reliabilityunlike its sometimes problematic 1.2-litre counterpart. You will find this four-cylinder engine in high-end models such as the Peugeot 508 II, 3008, 5008, Citroën C5 Aircross and DS 4 II. Available in 180PS and 225PS variants, it offers higher torque and reduced vibrations compared to smaller engines. With a correct maintenance– especially regular oil changes and timing chain checks – this engine stands out as champion of reliability from Stellantis in their high-end range.
Main lessons
- The 1.6 PureTech engine evolved from the THP model, solving previous timing chain problems to become a champion of reliability.
- Available in 180PS and 225PS variants, the 1.6 PureTech offers superior performance for larger premium vehicles.
- This four-cylinder engine offers minimal vibration and improved torque compared to the smaller 1.2-liter variant.
- Premium Stellantis models with reliable 1.6 PureTech engines include Peugeot 508 II, 3008 II, 5008 II and Citroën C5 Aircross.
- Regular maintenance with 0W30 oil changes every 15,000 km and timing chain inspections ensure longevity.
5 Second level subtitles

Although less common than its 1.2 liter counterpart, the 1.6 Pure Tech engine has established himself as a point of reference for reliability in the Stellantis engine range, particularly in the post-2020 models.
Engine specifications reveal a impressive capacityoffering over 50 extra horsepower and improved torque over the smaller variant, making it ideal for larger vehicles like the Peugeot 5008.
You will find this engine mainly in Stellantis’ premium models such as the Citroën C5 Aircross and the Peugeot 508 II, where its 180 HP and 225 HP variants demonstrate a exceptional reliability.
Owner testimonials consistently highlight their satisfaction with recent models, noting the resolution of previous timing chain issues.
If you are looking performance without compromising reliabilityThe 1.6 PureTech represents a significant technical improvement that balances power and long-term durability in Stellantis’ upper segment vehicles.
The evolution of the 1.6 PureTech: from THP to a champion of reliability
While researching the lineage of Stellantis’ most reliable engines, the journey of 1.6 Pure Tech engine it is particularly enlightening.
Initially marketed under the name 1.6 THP, this engine developed in collaboration with BMW has undergone significant changes reliability improvements before obtaining its current PureTech designation.
Unlike his 1.2 liter brother in troublethe 1.6 PureTech surpassed the former supply chain problemsparticularly in the 180 HP and 225 HP variants.
Now you will find these refined engines associated exclusively with the EAT8 8-speed automatic transmission in Stellantis’ premium offerings such as the Peugeot 508 II and Citroën C5 Aircross.
The engine development process transformed what was once a questionable choice into a choice… champion of reliabilitywith consistent feedback from owners confirming its mechanical strength in real-world applications.
Performance advantages: why the PureTech 1.6 outperforms its smaller brothers
Despite sharing the name PureTech, the 1.6 liter version it is in a different performance class than its smaller siblings.
You will immediately notice the substantial advantage of over 50 hp that transforms the distribution of powerparticularly evident during acceleration and overtaking maneuvers on the motorway.
THE’four-cylinder architecture It substantially improves your driving experience by minimizing vibration and noise as you push into the higher rpm ranges.
This refinement becomes especially evident in larger vehicles such as the Peugeot 5008where the engine’s superior torque characteristics excel at transporting passengers and cargo.
Available in 180hp and 225hp configurations, these engines strike an ideal balance between responsive performance and daily usability.
Unlike the sometimes problematic 1.2 PureTech, the improved reliability of the 1.6 variant comes from fixing mechanical issues, while the remaining concerns are mainly limited to electronics.
Models equipped with 1.6 Puretech: a complete range
The engine 1.6 PureTech acquired superior characteristics that earned him a prestigious position in range of premium vehicles of Stellantis
You will find this powerful engine in the elegant Peugeot 508 II as well as in the versatile 3008 II and 5008 II models, where the 180 HP variant offers impressive performance for these family vehicles.
In terms of market positioning, Stellantis mainly reserves this engine for its own high-end offers.
The Citroën C5 Aircross features 180 HP and 225 HP options, while the sophisticated DS 4 II offers the same power variants, highlighting the engine flexibility on different platforms.
The Opel Grandland X, badged 1.6 Turbo 181, completes this premium collection.
Comparing the engines, it is evident that Stellantis is strategically implementing the 1.6 PureTech in the vehicles in which it is present refined power and efficiency they are the most advantageous.
Maintenance tips to maximize the life of your 1.6 PureTech engine
Maintain yours properly 1.6 Pure Tech engine it is not only recommended, it is essential to maximize its operational life and preserve its performance characteristics.
Always use the0W30 oil specified and follow theOil change interval of 15,000 km to ensure optimal lubrication.
Don’t neglect the distribution chain—this critical component requires regular inspection to maintain reliable performance.
Engine efficiency depends largely on the cleanliness of the air and fuel filters; replace them within the scheduled time to avoid unnecessary wear and power reduction.
Pay attention to the warning indicators: they are, as much as possible, your early detection system lubrication problems or damage to the timing belt.
Follow the manufacturer’s maintenance schedule it is not optional; it’s your plan to identify problems before they turn into expensive repairs.
This proactive approach will keep your PureTech engine running smoothly for years to come.
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