The Peugeot CRD93LS (U25/673) is a 1,905 cc, inline‑four turbo‑diesel engine produced between 1993 and 1998. It features an indirect injection (IDI) system with a mechanical Bosch VE injection pump and a fixed — geometry turbocharger. In standard applications, it delivers 66 kW (90 PS) and 190 Nm of torque, engineered for robust, economical performance in light commercial and passenger vehicles.
Fitted primarily to the Partner I and 306 models, the CRD93LS engine was de…
All production years 1993–1998 meet pre-Euro standards (French Homologation #93C7890).
The Peugeot CRD93LS (U25/673) is a 1,905 cc inline‑four turbo‑diesel engineered for compact vans and hatchbacks (1993-1998). It combines a robust mechanical Bosch VE injection pump with a fixed-geometry turbocharger to deliver predictable, economical performance. Designed for reliability in its era, it predates formal Euro emissions standards.
| 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) | |
Torque | 190 Nm @ 2,500 rpm | |
Fuel system | Bosch VE mechanical injection pump | |
Emissions standard | Pre-Euro (French Homologation) | |
Compression ratio | 23.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single fixed‑geometry turbo (KKK) | |
Timing system | Belt-driven | |
Oil type | SAE 15W‑40 (Mineral) | |
Dry weight | 155 kg |
The Peugeot CRD93LS (U25/673) was used across PSA Group's light commercial and compact car platforms with transverse mounting. This engine received minimal platform-specific adaptations-standardized engine mounts for the Partner and 306-with no major facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
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The CRD93LS (U25/673)'s primary reliability risk is turbocharger oil seal failure, with elevated incidence in vehicles subjected to extended service intervals or towing. PSA workshop data indicated a measurable rate of turbo-related oil consumption complaints after 120,000 km, while owner surveys frequently cite timing belt and injection pump wear as common causes of major failure. Adherence to basic maintenance schedules is critical for longevity.
Analysis derived from PSA technical bulletins (1995-1998) and Peugeot Owner's Club technical archives (1998-2005). Repair procedures should follow manufacturer guidelines.
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The CRD93LS is renowned for its ruggedness and can be extremely reliable long-term if basic maintenance is performed. Its main weaknesses are the timing belt and turbo seals, which are manageable with timely replacements. With proper care, including regular oil and filter changes, these engines can easily surpass 300,000 km. Its simple, mechanical design is easy to work on and forgiving.
The most frequent issues are turbocharger oil seal leaks (causing blue smoke), timing belt failure (catastrophic if ignored), wear in the Bosch VE injection pump, and glow plug system faults. These are well-documented in PSA service notes and owner forums, and most are preventable with regular maintenance.
This 1.9L turbo-diesel engine was used in the first-generation Peugeot Partner (1996-1998) and the Peugeot 306 (1993-1997), typically in higher trim levels like the XT and XS. It was also found in some Citroën Berlingo and ZX models during the same period.
Yes, the CRD93LS responds well to basic tuning. Common upgrades include adjusting the injection pump's maximum fuel screw and boost compensator, fitting a larger exhaust, and increasing boost pressure via the wastegate. These can yield 20-30% more power. More extensive modifications like a larger turbo are possible but less common due to the engine's age.
Official figures are around 6.5 L/100km (43 mpg UK) combined. Real-world consumption typically ranges from 7.0-8.5 L/100km (33-40 mpg UK) in mixed driving, depending on vehicle weight and driving style. Highway cruising can yield figures close to 5.5 L/100km (51 mpg UK).
Yes. The CRD93LS (U25/673) is an interference engine. If the timing belt were to fail, the pistons would contact the open valves, causing severe internal damage. This makes adhering to the 80,000 km timing belt replacement interval absolutely critical for engine survival.
Peugeot originally specified a 15W-40 mineral oil. Modern diesel-rated oils meeting API CF-4 or ACEA B3 specifications are perfectly suitable and recommended. The key is regular changes every 10,000 km or annually to ensure proper lubrication of the turbocharger and injection pump.
Comprehensive technical documentation and regulatory references
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EUR-Lex
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.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
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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