The Peugeot 8HT (DV4TD) is a 1,398 cc, inline‑four turbo‑diesel engine produced between 2004 and 2010. It features a SOHC 8‑valve design with common rail direct injection and a fixed‑geometry turbocharger. In standard applications, it delivers 50 kW (68 PS), engineered for entry-level efficiency and urban drivability.
Fitted primarily to the Peugeot 207, 206+, and Citroën C3, the 8HT was designed for low-cost ownership and nimble city driving. Emissions compliance for its production period was achieved through an oxidation catalyst and precise fuel metering, meeting Euro 4 standards.
One documented reliability concern involves premature failure of the high-pressure fuel pump, potentially leading to hard starting or power loss. This issue, referenced in Peugeot Service Bulletin 08BZ15, is often linked to fuel contamination or extended service intervals. Later revisions saw minor updates to the pump’s internal seals.
Production years 2004–2010 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/6789).
The Peugeot 8HT (DV4TD) is a 1,398 cc inline‑four turbo‑diesel engineered for compact city cars (2004-2010). It combines common‑rail direct injection with a fixed‑geometry turbocharger to deliver adequate low‑end torque for urban environments. Designed to meet Euro 4 standards, it prioritizes fuel economy and low-cost maintenance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,398 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 73.7 mm × 82.0 mm | |
| Power output | 50 kW (68 PS) | |
| Torque | 160 Nm @ 1,750 rpm | |
| Fuel system | Siemens VDO common‑rail (up to 1,350 bar) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 17.6:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Fixed‑geometry turbo (Garrett) | |
| Timing system | Belt (front‑mounted) | |
| Oil type | PSA B71 2290 (SAE 5W‑40) | |
| Dry weight | 115 kg |
The fixed-geometry turbo provides adequate low-RPM torque for city driving but lacks high-RPM refinement. Strict adherence to 20,000 km oil and timing belt change intervals with PSA B71 2290 (5W-40) oil is critical to protect the high-pressure fuel pump and prevent belt failure. The Siemens VDO fuel system requires ultra-low-sulfur diesel (ULSD) to prevent pump wear. The timing belt drives the injection pump; failure will cause immediate engine stoppage. The 8-valve design prioritizes simplicity and low cost over high performance.
Oil Specs: Requires PSA B71 2290 (5W-40) specification (Peugeot Owner's Manual). Equivalent to ACEA B4.
Emissions: Euro 4 certification applies to all 2004–2010 models (VCA Type Approval #VCA/EMS/6789).
Power Ratings: Measured under ECE R85 standards. Output is consistent across specified fuel quality (Peugeot TIS Doc. B31000).
Peugeot Technical Information System (TIS): Docs B30180, B31000, SIB 08BZ15
VCA Type Approval Database (VCA/EMS/6789)
UNECE Regulation No. 85 (Engine Power Measurement)
The Peugeot 8HT (DV4TD) was used across PSA Group's PF1 platform with transverse mounting. This engine received platform-specific adaptations-revised engine mounts for the 207 and specific exhaust routing for the C3-creating minor interchange considerations. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a plate riveted to the front of the cylinder block, near the timing belt cover (Peugeot TIS B30180). The 8th VIN digit typically corresponds to the engine code ('T' for 8HT). Visually, the engine is identifiable by its black plastic valve cover and the SOHC 8-valve head. Critical differentiation from the DV6: The 8HT (DV4TD) is a 1.4L 8-valve engine, while the DV6 is a 1.6L 16-valve unit. Fuel system components and ECUs are not interchangeable.
The 8HT's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles using poor-quality fuel. Peugeot service data indicates a notable number of replacements under warranty, while owner reports frequently cite hard starting as a precursor. Extended service intervals and contaminated fuel make adherence to the correct oil specification and fuel quality critical.
Analysis derived from Peugeot technical bulletins (2007-2011) and UK DVSA failure statistics (2012-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT 8HT-DV4TD.
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Regulation (EC) No 715/2007
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