The Peugeot 851B (ZDJL) is a 1,199 cc, inline‑three turbocharged petrol engine produced from 2022 onward. It features a dual overhead camshaft (DOHC) design with 12 valves and direct fuel injection, delivering 96 kW (131 PS) with torque figures of 230 Nm. A small, fast — spooling turbocharger ensures responsive low — end performance ideal for urban driving.
Fitted to models such as the 208 and 2008, the 851B (ZDJL) was engineered for compact, efficient motoring with a focus…
All production years (2022–Present) meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/101112).
The Peugeot 851B (ZDJL) is a 1,199 cc inline‑three turbocharged petrol engineered for compact city cars (2022-Present). It combines direct fuel injection with a small turbocharger to deliver strong low-end torque and efficient urban performance. Designed to meet stringent Euro 6d standards, it incorporates a GPF for particulate control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,199 cc | |
Fuel type | Petrol | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 75.0 mm × 90.5 mm | |
Power output | 96 kW (131 PS) | |
Torque | 230 Nm @ 1,750 rpm | |
Fuel system | Direct injection (Bosch HDEV6) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single turbo (BorgWarner) | |
Timing system | Chain‑driven | |
Oil type | Peugeot 9736.C3 (SAE 0W‑20) | |
Dry weight | 95 kg |
The Peugeot 851B (ZDJL) was used across Peugeot's CMF-B platform with transverse mounting. This engine received platform-specific adaptations-lightweight mounts in the 208 and revised cooling for the 2008. All adaptations are documented in OEM technical bulletins.
The 851B (ZDJL)'s primary reliability risk is fuel injector fouling due to poor fuel quality, with elevated incidence in vehicles using supermarket or low-grade petrol. Peugeot internal service data indicates a notable fault rate linked to misfire codes, while general owner reports frequently cite rough running and loss of power. Use of incorrect fuel or infrequent long drives accelerates carbon buildup, making adherence to fuel quality and maintenance schedules critical.
Analysis derived from Peugeot technical bulletins (2022-Present) and owner-reported failure data (2023-2025). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The 851B (ZDJL) is generally reliable for urban use, but its long-term health depends heavily on fuel quality and maintenance. The biggest concerns are injector fouling from poor fuel and carbon buildup on intake valves. With strict adherence to using high-quality fuel and 0W-20 oil changes every 20,000 km, these engines can be very dependable for city driving.
The most frequent issues are fuel injector fouling due to poor fuel quality, carbon buildup on intake valves causing rough running, turbocharger wastegate actuator sticking leading to boost issues, and minor oil leaks from the valve cover gasket. These are well-documented in Peugeot service information and are common to many modern small turbocharged engines.
This 1.2L turbo petrol engine is used in Peugeot's current compact models, including the 208 (2022-Present) and 2008 (2022-Present), typically in GT or Allure trims. It is part of the PureTech engine family and is not used in larger Peugeot models like the 3008 or 508.
Yes, moderately. The 851B (ZDJL) can be remapped for modest power gains (+10-20 kW), but its small displacement and focus on efficiency mean it's not a high-tuning-potential engine. Significant power increases would require extensive modifications and are not recommended due to potential reliability impacts on the turbo and internals.
Expect combined fuel economy of approximately 5.0-5.5 L/100km (56-51 mpg UK) in a Peugeot 208 GT. Real-world figures are excellent for city driving but can be slightly higher on highways. The official WLTP figures are quite achievable with gentle driving, making it one of the more economical turbocharged petrol engines.
Yes. The 851B (ZDJL) is an interference engine. If the timing chain were to fail (a very rare occurrence) or if the cam timing is severely disrupted, piston-to-valve contact is possible, resulting in significant internal engine damage. The chain is designed for the engine's lifetime under normal conditions.
Peugeot mandates a 0W-20 synthetic oil meeting their specific 9736.C3 standard (or equivalent ACEA C5). Using the correct low-SAPS (Sulphated Ash, Phosphorus, Sulphur) oil is critical for the longevity of the GPF. Change intervals should not exceed 20,000 km or 1 year.
Comprehensive technical documentation and regulatory references
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