The Lancia 182 A4.000 is a 3,957 cc, V8 petrol engine produced between 2001 and 2007. It features a dual overhead camshaft (DOHC) design per cylinder bank and multi‑point fuel injection, delivering 221 kW (300 PS) and 360 Nm of torque. Its 90° V8 layout provides smooth, linear power delivery for refined performance.
Fitted exclusively to the Lancia Thesis during this period, the 182 A4.000 was engineered for effortless cruising, strong overtaking ability, and flagship lu…

Production years 2001–2007 meet Euro 3 standards .
The Lancia 182 A4.000 is a 3,957 cc V8 petrol engine engineered for flagship sedans (2001-2007). It combines a DOHC valvetrain with multi‑point fuel injection to deliver smooth, linear power and ample torque. Designed to meet Euro 3 standards, it prioritizes refinement and effortless performance over outright fuel economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,957 cc | |
Fuel type | Petrol | |
Configuration | V8, 90°, DOHC, 32‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 88.0 mm × 81.0 mm | |
Power output | 221 kW (300 PS) @ 6,200 rpm | |
Torque | 360 Nm @ 4,500 rpm | |
Fuel system | Multi‑point fuel injection (Magneti Marelli) | |
Emissions standard | Euro 3 | |
Compression ratio | 10.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain‑driven (per bank) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 210 kg |
The Lancia 182 A4.000 was used exclusively on the Lancia Thesis platform with longitudinal mounting. This engine received no significant platform-specific adaptations or facelift revisions during its production, ensuring consistent parts interchangeability. All technical specifications are documented in OEM technical bulletins.
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The 182 A4.000's primary reliability consideration is intake manifold flap failure if maintenance is neglected. Fiat Group internal data indicated a correlation between age/mileage and flap linkage wear. Secondary concerns include coolant leaks and oil consumption. Adherence to the manufacturer's service schedule is critical for longevity.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 182 A4.000 is generally reliable if its service schedule is followed, particularly regarding oil changes and addressing intake manifold issues. While timing chains are durable, they should be inspected at recommended intervals. With proper maintenance, including addressing minor leaks, these engines can surpass 200,000 km, though oil consumption may increase with age.
The most common issues are intake manifold runner flap linkage breakage, coolant leaks from the water pump, increased oil consumption due to worn valve stem seals, and oil leaks from the rear main seal. These are well-documented in Fiat Group service bulletins.
This 4.0L V8 32V engine was used exclusively in the Lancia Thesis (840 series) from 2002 to 2007. It was the flagship petrol engine for the Thesis, positioned above the 3.0L V6 variant.
Yes, but gains are modest. Simple modifications like a performance air filter and sports exhaust can yield 10-15 kW. ECU remapping is possible but offers limited gains due to the engine's naturally aspirated design and conservative factory tune. Significant power increases require internal modifications like camshafts or forced induction, which are complex on a V8.
Fuel economy is typical for a 4.0L V8 of its era. Expect around 15.5 L/100km in city driving and 9.5 L/100km on the highway, translating to approximately 18 mpg UK combined. Economy is heavily influenced by driving style and the vehicle's substantial weight.
Yes. The 182 A4.000 is an interference engine. If the timing chain were to jump or fail (though rare), the pistons would collide with the open valves, causing severe and expensive internal engine damage. Regular inspections are advised.
Lancia specifies a 10W-40 mineral or semi-synthetic oil meeting ACEA A3/B3 standards. Using the correct viscosity and specification is vital for protecting the hydraulic tappets and ensuring proper lubrication under all operating conditions.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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)
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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