The Citroën PureTech 110 is a 1,199 cc, inline — three turbocharged petrol engine produced between 2014 and present. Developed by Stellantis (formerly PSA Group), it features a DOHC 12 — valve configuration, direct fuel injection (GDI), and turbocharging to deliver 81 kW (110 PS) and 205 Nm of torque. Its compact three — cylinder layout provides weight savings and improved fuel efficiency, making it ideal for B — and C — segment vehicles.
Fitted across Citroën’s C3, C4, C — El…
Production years 2014–2017 meet Euro 6b standards; 2018–2025 models comply with Euro 6d-TEMP and Euro 6d depending on market (VCA UK Type Approval #VCA/EMS/7890).
The Citroën PureTech 110 is a 1,199 cc inline-three turbocharged petrol engine engineered for compact and subcompact vehicles (2014–present). It combines gasoline direct injection (up to 200 bar) with a single-scroll turbocharger to deliver responsive low-end torque and strong urban drivability. Designed to meet Euro 6 emissions standards, it balances performance with fuel economy in city and mixed driving cycles.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,199 cc | |
Fuel type | Petrol | |
Configuration | Inline-3, DOHC, 12-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 74.0 mm × 92.9 mm | |
Power output | 81 kW (110 PS) @ 5,500 rpm | |
Torque | 205 Nm @ 1,750–3,000 rpm | |
Fuel system | Bosch HDEV5 direct injection (up to 200 bar) | |
Emissions standard | Euro 6b (pre-2018); Euro 6d-TEMP / 6d (2018–2025) | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single-scroll turbo (BorgWarner EFR 6258) | |
Timing system | Timing belt (service interval: 160,000 km or 8 years) | |
Oil type | Total Quartz INEO MC3 0W-20 (Stellantis B71 2310) | |
Dry weight | 98 kg |
The Citroën PureTech 110 was used across Citroën's Berlinette/C-segment platforms with transverse mounting and shared within the Stellantis Group for use in Peugeot, Opel, and Fiat models. This engine received platform-specific adaptations-shorter intake manifolds in the C3 and reinforced mounts in the C4-and from 2018 the Euro 6d-compliant revision introduced a gasoline particulate filter (GPF) and enhanced EGR cooling, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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The PureTech 110's primary reliability risk is intake carbon buildup on early builds, with elevated incidence in urban driving with frequent cold starts. Stellantis internal quality reports from 2017 indicated a significant number of pre-2019 engines showing deposits before 80,000 km, while UK DVSA MOT data shows GPF and lambda sensor faults as a leading cause of emissions-related failures. Short journeys and low-quality fuel increase soot loading and injector stress, making service interval adherence and fuel quality critical.
Analysis derived from Stellantis technical bulletins (2014-2024) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.
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The PureTech 110 is generally robust when maintained properly, but early models (2014–2018) are prone to intake carbon buildup. Later revisions (post-2019) with improved PCV routing and ECU mapping are more durable. Regular servicing, use of correct oil (Stellantis B71 2310), and timely timing belt replacement (160,000 km or 8 years) are essential for long-term reliability.
The most documented issues are intake manifold/EGR carbon buildup, GPF clogging, timing belt tensioner failure, and turbo boost control faults. These are covered in Stellantis technical bulletins and are often linked to poor maintenance, short-trip driving, or extended service intervals. Direct injector coking and occasional water pump leaks are also reported.
The PureTech 110 was used in the Citroën C3 (2017–2025), C4 (2018–2025), C-Elysée (2014–2021), and ë-C3 (as a range extender, 2023–2025). It was also shared across Stellantis Group vehicles like the Peugeot 208, Opel Corsa, and Fiat 500 Hybrid. Models from 2018 onward meet Euro 6d standards with GPF and enhanced EGR systems.
Yes, the PureTech 110 responds well to ECU remapping. Stage 1 tunes typically increase output to 95–100 kW (128–136 PS) safely. The stock turbo and internals support moderate gains, but larger upgrades require intercooler and fuel system modifications. Tuning should preserve GPF/EGR functionality to avoid reliability issues.
Excellent for its class. In a C3 110 PureTech, combined consumption is ~4.8 L/100km (~59 mpg UK). Highway driving can achieve ~4.2 L/100km (~67 mpg UK), while city use is around 5.5 L/100km (~51 mpg UK). Real-world figures depend on driving style, but 50–60 mpg UK is typical for a well-maintained example on mixed routes.
Yes. The PureTech 110 is an interference engine, meaning a broken or slipped timing belt can result in piston-to-valve contact and severe internal damage. This underscores the critical importance of adhering to the 160,000 km or 8-year replacement interval and using only OEM-quality timing components.
Stellantis specifies Total Quartz INEO MC3 0W-20 (Stellantis B71 2310) for all PureTech 110 engines. This low-SAPS oil is essential for protecting the turbocharger, GPF, and direct injectors from LSPI. Oil changes should be performed every 15,000 km or annually to prevent sludge and maintain injector cooling.
Comprehensive technical documentation and regulatory references
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CITROEN Official Site
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
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