The Peugeot 1.6L THP 200 (engine code EP6CDTX) is a 1,598 cc, inline‑four turbocharged petrol engine produced between 2010 and 2018. It features a double overhead camshaft (DOHC), 16‑valve architecture with direct fuel injection and a twin‑scroll turbocharger. Peak output is 147 kW (200 PS) at 6,000 rpm with 275 Nm of torque at 1,700 rpm, delivering strong performance with refined response.
Fitted to performance variants such as the Peugeot RCZ R, 308 GTi, and 208 GTi, the EP6CDTX was engineered for sporty driving with everyday usability. Emissions compliance was achieved through exhaust gas recirculation (EGR), a three‑way catalytic converter, and precise direct injection control, enabling Euro 5 compliance across all production years.
One documented concern is carbon buildup on intake valves due to the absence of fuel washing in direct-injection systems, which can cause rough idle and power loss. This issue, highlighted in PSA Group Service Information Bulletin SI‑11‑07, is common to all direct-injection petrol engines of this generation. From 2015 onward, revised engine management strategies reduced deposit accumulation in later models.
All production years (2010–2018) meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/9432). No Euro 6 variants exist under the EP6CDTX designation.
The Peugeot 1.6L THP 200 (EP6CDTX) is a 1,598 cc inline‑four turbocharged petrol engine engineered for hot hatch and coupe applications (2010–2018). It combines DOHC valvetrain architecture with direct injection and a twin-scroll turbocharger to deliver high specific output and responsive torque. Designed to meet Euro 5 emissions standards, it balances performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,598 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 77.0 mm × 85.8 mm | |
| Power output | 147 kW (200 PS) @ 6,000 rpm | |
| Torque | 275 Nm @ 1,700 rpm | |
| Fuel system | Direct injection (Bosch HDEV5, up to 200 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 9.2:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Twin‑scroll turbo (Garrett GT1544V) | |
| Timing system | Chain (front‑mounted) | |
| Oil type | ACEA A3/B4, PSA B71 2290 (SAE 5W‑40) | |
| Dry weight | 120 kg |
The twin-scroll turbo and direct injection provide brisk, linear acceleration ideal for spirited driving but require strict adherence to 15,000 km oil change intervals to protect the timing chain and turbo bearings. ACEA A3/B4 (PSA B71 2290) 5W‑40 oil is critical to maintain high-temperature stability and prevent sludge. Cold-start idling should be minimized to reduce carbon accumulation on intake valves. Intake cleaning every 60,000–80,000 km is recommended per PSA SI‑11‑07. Use only premium unleaded petrol (RON 95 minimum, RON 98 preferred) to avoid knock and maintain performance.
Oil Specs: Requires ACEA A3/B4, PSA B71 2290 (5W‑40) specification (PSA Owner’s Handbook RCZ R, 2013).
Emissions: Euro 5 certification applies to all model years (VCA Type Approval #VCA/EMS/9432). No Euro 6 variants exist under EP6CDTX.
Power Ratings: Measured under EEC 80/1269 standards. Output is fixed at 147 kW (200 PS) across all applications (PSA TIS Doc. M20‑405).
PSA Technical Information System (TIS): Docs M20‑405, SI‑11‑07
VCA Type Approval Database (VCA/EMS/9432)
EU Regulation (EC) No 715/2007 (Euro 5 Standard)
The Peugeot 1.6L THP 200 (EP6CDTX) was used across PSA Group's PF2 and PF1 platforms with transverse mounting and shared with Citroën and MINI under joint development. This engine received platform-specific adaptations—reinforced mounts in the RCZ R and modified intercooler routing in the 308 GTi—and from 2015 the updated engine management strategies created minor calibration differences. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the block near the timing cover (PSA TIS M20‑405). The 8th VIN digit indicates engine family ('6' for EP6 series). Visual identification: red valve cover with “THP” branding, twin-scroll turbo with integrated exhaust manifold, and direct injection fuel rail. Critical differentiation from EP6CDTR (155 PS): EP6CDTX has higher boost pressure (1.4 bar vs 1.2 bar) and unique ECU calibration. Always verify ECU part number 96572100 for authenticity.
The EP6CDTX's primary reliability risk is carbon buildup on intake valves due to direct injection, with elevated incidence in urban or short-trip driving. PSA internal quality reports from 2014 noted measurable power loss and misfires before 70,000 km in city-driven vehicles, while owner surveys confirm rough idle as a frequent complaint. Extended oil intervals and low-quality fuel accelerate deposit formation, making fuel quality and maintenance discipline critical.
Analysis derived from PSA technical bulletins (2011–2016) and Peugeot Sport Owner Club reliability surveys (2013–2020). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT 1-6L-THP-200.
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