The Lancia Thesis 2.4 JTD Automatic, produced from May 2003 to March 2006, represented a sophisticated and luxurious offering within the Lancia lineup. Positioned as a flagship sedan, it aimed to compete with executive cars from German manufacturers. This variant, powered by a 2.4-liter turbocharged diesel engine paired with a five-speed automatic transmission, offered a blend of performance and comfort, appealing to buyers seeking a refined driving experience. It was part of the first generation of the Thesis (841 series), a model intended to revive Lancia’s image as a premium brand. The 2.4 JTD Automatic sat in the mid-to-upper range of the Thesis lineup, offering more power and refinement than the base 2.0 JTD models, but remaining more accessible than the range-topping 2.4 JTD Exclusive.
Technical Specifications
| Brand | Lancia |
| Model | Thesis |
| Generation | Thesis |
| Type (Engine) | 2.4 JTD (175 Hp) Automatic |
| Start of production | May, 2003 |
| End of production | March, 2006 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 12.1 l/100 km (19.4 US mpg) |
| Fuel consumption (extra urban) | 6.9 l/100 km (34.1 US mpg) |
| Fuel consumption (combined) | 8.8 l/100 km (26.7 US mpg) |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.2 sec |
| Acceleration 0 – 62 mph | 10.2 sec |
| Acceleration 0 – 60 mph | 9.7 sec |
| Maximum speed | 220 km/h (136.7 mph) |
| Weight-to-power ratio | 10.2 kg/Hp |
| Weight-to-torque ratio | 4.7 kg/Nm |
| Power | 175 Hp @ 4000 rpm |
| Power per litre | 73.3 Hp/l |
| Torque | 380 Nm @ 2000 rpm (280.27 lb.-ft. @ 2000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 841 G.000 |
| Engine displacement | 2387 cm3 (145.66 cu. in.) |
| Number of cylinders | 5 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 90.4 mm (3.56 in.) |
| Compression ratio | 18.1:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | OHC |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 8.4 l (8.88 US qt | 7.39 UK qt) |
| Kerb Weight | 1790 kg (3946.27 lbs.) |
| Max. weight | 2225 kg (4905.29 lbs.) |
| Max load | 435 kg (959.01 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Fuel tank capacity | 75 l (19.81 US gal | 16.5 UK gal) |
| Length | 4890 mm (192.52 in.) |
| Width | 1830 mm (72.05 in.) |
| Height | 1470 mm (57.87 in.) |
| Wheelbase | 2805 mm (110.43 in.) |
| Front track | 1570 mm (61.81 in.) |
| Rear (Back) track | 1540 mm (60.63 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, automatic transmission |
| Front suspension | Spring Strut |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 215/60 R16 |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
The heart of the Thesis 2.4 JTD Automatic is the 841 G.000 engine, a 2.4-liter inline-five cylinder diesel. This engine utilizes a common rail direct injection system, delivering fuel at extremely high pressure for improved combustion efficiency and reduced emissions. The engine benefits from a turbocharger with an intercooler, boosting power output to 175 horsepower and 380 Nm (280 lb-ft) of torque. The five-cylinder configuration, while less common than four or six-cylinder designs, provides a unique engine note and a relatively smooth power delivery. The automatic transmission is a conventional five-speed unit, chosen for its comfort and ease of use, rather than outright performance. It’s designed to work seamlessly with the engine’s torque curve, providing smooth shifts during normal driving conditions.
Driving Characteristics
The 2.4 JTD Automatic Thesis offers a comfortable and refined driving experience. While not a sports sedan, the engine provides adequate power for relaxed highway cruising and confident overtaking. The automatic transmission, while not particularly quick-shifting, is smooth and predictable. Acceleration from 0 to 60 mph takes around 9.7 seconds, and the top speed is approximately 136.7 mph. Compared to the manual transmission versions of the 2.4 JTD, the automatic sacrifices some responsiveness, but gains in ease of use. The higher-output 2.4 JTD Exclusive models, with slightly more power, offer a more engaging driving experience, but at a higher price point. The Thesis prioritizes ride comfort, and the suspension effectively absorbs bumps and imperfections in the road.
Equipment & Trim Levels
The Thesis 2.4 JTD Automatic came well-equipped as standard. Features typically included leather upholstery, automatic climate control, power-adjustable front seats, a premium audio system, and alloy wheels. Safety features such as ABS, traction control, and multiple airbags were also standard. Optional extras included a navigation system, sunroof, and upgraded leather trim. The interior design emphasized luxury and spaciousness, with high-quality materials and a focus on comfort. The dashboard layout is elegant and functional, with a clear and intuitive arrangement of controls.
Chassis & Braking
The Thesis utilizes a front-wheel-drive layout with independent suspension at the front and a semi-independent coil spring suspension at the rear. The front suspension employs MacPherson struts, while the rear utilizes a twist-beam setup. Braking duties are handled by ventilated discs on all four wheels, providing adequate stopping power. The steering is rack-and-pinion with hydraulic power assistance, offering a reasonably direct and responsive feel. The chassis is designed to prioritize ride comfort and stability, rather than sporty handling.
Market Reception & Comparison
The Lancia Thesis, despite its ambition, struggled to gain significant market share, particularly outside of Italy. Critics praised its luxurious interior, comfortable ride, and refined engine, but noted its relatively high price and lack of brand recognition compared to established German competitors. The 2.4 JTD Automatic offered a good balance of performance and economy, achieving around 26.7 US mpg in combined driving. Compared to the 2.0 JTD models, the 2.4 JTD offered a noticeable improvement in performance, while maintaining reasonable fuel consumption. However, the 2.4 JTD Exclusive, with its higher power output and more luxurious features, was often seen as the more desirable option for those willing to pay the premium.
Legacy
The Lancia Thesis, while not a commercial success, remains a fondly remembered car among enthusiasts. The 2.4 JTD Automatic powertrain has proven to be relatively reliable, with many examples still on the road today. Common issues include wear and tear on suspension components and occasional problems with the automatic transmission. However, with proper maintenance, these engines can provide many years of service. The Thesis represents a bold attempt by Lancia to reclaim its position as a premium automaker, and its luxurious interior and comfortable ride continue to appeal to those seeking a unique and sophisticated driving experience. The used car market values these vehicles for their rarity and distinctive Italian styling.
