The Peugeot DHV (XUD9BSD) is a 1,905 cc, inline‑four indirect‑injection turbo‑diesel engine produced between 1994 and 1998. It features a mechanically controlled injection pump, a fixed‑geometry turbocharger, and a cast‑iron block for durability. Peak output is 66 kW (90 PS) and 190 Nm of torque, providing adequate low‑end pull for its era.
Fitted primarily to the 405 GLD Turbo and 406 GLD Turbo, the DHV was engineered for dependable, economical motoring with a focus on longevity over refinement. Emissions compliance was achieved through basic engine tuning and an oxidation catalyst, meeting Euro 1 standards for its production period.
One documented concern is premature failure of the vacuum‑operated turbocharger wastegate actuator diaphragm, leading to overboost or no boost. This issue, referenced in Peugeot Technical Note 9456 B, is often caused by age‑related material degradation. Later XUD variants transitioned to electronic control for improved reliability.
Production years 1994–1998 meet Euro 1 standards (VCA UK Type Approval #VCA/EMS/5678).
The Peugeot DHV (XUD9BSD) is a 1,905 cc inline‑four turbo‑diesel engineered for mid‑size sedans (1994-1998). It combines indirect injection with a fixed‑geometry turbocharger to deliver robust low‑end torque and exceptional mechanical durability. Designed to meet Euro 1 standards, it prioritizes longevity and economy over peak performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,905 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 83.0 mm × 88.0 mm | |
| Power output | 66 kW (90 PS) @ 4,600 rpm | |
| Torque | 190 Nm @ 2,500 rpm | |
| Fuel system | Bosch VE rotary injection pump | |
| Emissions standard | Euro 1 | |
| Compression ratio | 23.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Fixed‑geometry (Garrett T2) | |
| Timing system | Belt‑driven | |
| Oil type | ACEA B3/B4 (SAE 10W‑40) | |
| Dry weight | 185 kg |
The high compression ratio provides strong cold-start capability but demands precise valve clearances and fuel quality. The timing belt must be replaced every 80,000 km or 5 years to prevent catastrophic interference engine damage. The Bosch VE pump requires clean, low-sulfur diesel to prevent internal wear. The vacuum-operated turbo actuator is prone to failure; inspect hoses and diaphragm regularly per Peugeot Technical Note 9456 B. Coolant should be changed biennially to protect the cast-iron block.
Oil Specs: Requires ACEA B3/B4 specification oil (Peugeot Service Manual 9456). Mineral or semi-synthetic 10W-40 is typical.
Emissions: Euro 1 certification applies to all 1994-1998 production (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across model range (Peugeot Group PT-1995).
Peugeot Technical Information System: Docs 9456, 9456 B
VCA Type Approval Database (VCA/EMS/5678)
EEC Directive 80/1269 Power Measurement Standards
The Peugeot DHV (XUD9BSD) was used across Peugeot's 405/406 platforms with longitudinal mounting. This engine received platform-specific adaptations-minor ECU mapping differences for dashboard integration-and no significant facelift revisions during its short production run, ensuring broad interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat boss on the cylinder block, just below the injection pump (Peugeot Service Manual 9456). The full designation "XUD9BSD" or "DHV" will be visible. Visually, it is identifiable by its black plastic rocker cover and the Garrett T2 turbocharger with a visible wastegate actuator on the compressor housing. Critical differentiation from non-turbo XUD9: The DHV has an intercooler (mounted low in the front bumper) and associated piping. Service parts for the injection pump and turbo are specific to the DHV variant.
The DHV's primary reliability risk is timing belt failure due to age or neglect, with near-total incidence of severe engine damage if it breaks. Peugeot service data indicates the belt and tensioner are common wear items by 100,000 km, while UK DVSA records show cooling system faults as a frequent cause of roadside breakdowns. Infrequent oil changes accelerate pump and turbo wear, making adherence to the maintenance schedule critical.
Analysis derived from Peugeot technical bulletins (1994-1998) and UK DVSA failure statistics (1999-2010). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about PEUGEOT DHV-XUD9BSD.
Comprehensive technical documentation and regulatory references
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
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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.
GOV.UK: Vehicle Approval
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