The Kia Optima II 2.0 CRDi, produced between 2005 and 2008, marked a significant advancement for Kia in the mid-size sedan segment. Positioned as a more sophisticated and technologically equipped offering compared to its predecessor, the Optima II aimed to directly challenge established European and Japanese competitors. This specific variant, powered by the 2.0-liter CRDi diesel engine producing 140 horsepower, was a key model in many European markets, offering a balance of fuel efficiency, reasonable performance, and an accessible price point. It was part of the broader Optima II range, built on the Kia ED platform, which was shared with the contemporary Hyundai Sonata.
Technical Specifications
| Brand | Kia |
| Model | Optima |
| Generation | Optima II |
| Type (Engine) | 2.0 CRDi (140 Hp) |
| Start of production | 2005 |
| End of production | 2008 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 8.1 l/100 km (29 US mpg, 34.9 UK mpg, 12.3 km/l) |
| Fuel consumption (extra urban) | 5 l/100 km (47 US mpg, 56.5 UK mpg, 20 km/l) |
| Fuel consumption (combined) | 6 l/100 km (39.2 US mpg, 47.1 UK mpg, 16.7 km/l) |
| CO2 emissions | 162 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.4 sec |
| Acceleration 0 – 62 mph | 10.4 sec |
| Acceleration 0 – 60 mph | 9.9 sec |
| Maximum speed | 201 km/h (124.9 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 10.9 kg/Hp, 91.8 Hp/tonne |
| Weight-to-torque ratio | 5 kg/Nm, 200 Nm/tonne |
| Power | 140 Hp @ 4000 rpm |
| Power per litre | 70.3 Hp/l |
| Torque | 305 Nm @ 1800-2500 rpm (224.96 lb.-ft. @ 1800-2500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | D4EA |
| Engine displacement | 1991 cm3 (121.5 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 17.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.9 l (6.23 US qt | 5.19 UK qt) |
| Coolant | 8.1 l (8.56 US qt | 7.13 UK qt) |
| Kerb Weight | 1525 kg (3362.05 lbs.) |
| Max. weight | 2045 kg (4508.45 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space – minimum | 496 l (17.52 cu. ft.) |
| Trunk (boot) space – maximum | 816 l (28.82 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Max. roof load | 80 kg (176.37 lbs.) |
| Permitted trailer load with brakes (12%) | 1700 kg (3747.86 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 80 kg (176.37 lbs.) |
| Length | 4735 mm (186.42 in.) |
| Width | 1805 mm (71.06 in.) |
| Height | 1480 mm (58.27 in.) |
| Wheelbase | 2720 mm (107.09 in.) |
| Front track | 1558 mm (61.34 in.) |
| Rear (Back) track | 1552 mm (61.1 in.) |
| Minimum turning circle | 11.8 m (38.71 ft.) |
| 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 | 6 gears, manual transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 205/60 R16 |
| Wheel rims size | 6.5J x 16 |
Powertrain & Engine Architecture
The core of this Optima variant is the Kia D4EA 2.0-liter inline-four cylinder diesel engine. This engine, a result of Kia’s ongoing development in diesel technology, featured a cast iron block and an aluminum cylinder head. It incorporated a second-generation common-rail direct injection system, delivering fuel at exceptionally high pressures for enhanced combustion efficiency and reduced emissions. The D4EA utilized a variable geometry turbocharger (VGT) and an intercooler to increase power and torque output. The engine’s DOHC (Double Overhead Camshaft) valvetrain, with four valves per cylinder, further optimized its breathing and overall performance. A 6-speed manual transmission was the standard configuration, providing a balance between fuel economy and driver control. The engine was engineered to comply with Euro 4 emission standards.
Driving Characteristics
The 140 horsepower and 305 Nm (224.96 lb-ft) of torque generated by the 2.0 CRDi engine provided adequate, though not particularly sporty, performance. Acceleration from 0 to 60 mph took approximately 9.9 seconds, with a top speed around 124.9 mph. The engine’s torque curve was relatively flat, delivering strong pulling power from low engine speeds, making it well-suited for everyday driving and overtaking. Compared to the higher-output diesel versions available in some markets, this version felt less strained and offered a more relaxed driving experience. The 6-speed manual transmission was well-matched to the engine, with gear ratios optimized for both fuel efficiency and responsiveness. While not a performance sedan, the Optima II 2.0 CRDi offered a comfortable and composed ride.
Equipment & Trim Levels
The Optima II 2.0 CRDi typically included a reasonable level of standard equipment. This encompassed air conditioning, power windows, central locking, and an audio system with a CD player. Higher trim levels added features like alloy wheels, a sunroof, leather upholstery, and automatic climate control. Safety features included ABS (Anti-lock Braking System) and dual front airbags. The interior design was generally functional and well-constructed, though not overly luxurious. The dashboard layout was straightforward and user-friendly.
Chassis & Braking
The Optima II featured an independent suspension system, utilizing McPherson struts at the front and a multi-link setup at the rear. This configuration provided a good compromise between ride comfort and handling. The front brakes were ventilated discs, while the rear brakes were solid discs. Hydraulic power steering offered a reasonable level of assistance, contributing to a comfortable driving experience. The chassis was designed to deliver a stable and predictable ride, even when carrying a full load.
Market Reception & Comparison
The Kia Optima II 2.0 CRDi received generally positive reviews from automotive critics. It was praised for its fuel efficiency, comfortable ride, and competitive pricing. However, some reviewers pointed out that the engine lacked the refinement of certain European competitors. Compared to the gasoline-powered Optima variants, the 2.0 CRDi offered significantly improved fuel economy, making it a popular choice for drivers covering long distances. Against rivals like the Ford Mondeo, Volkswagen Passat, and Toyota Avensis, the Optima II presented a compelling value proposition, particularly in terms of standard features and warranty coverage.
Legacy
The Kia Optima II 2.0 CRDi has proven to be a relatively reliable vehicle, with the D4EA engine generally considered durable and long-lasting. Common issues include wear on suspension components and potential problems with the turbocharger. However, with consistent maintenance, these engines can often surpass 150,000 miles. In the used car market, the Optima II 2.0 CRDi remains a popular option for budget-conscious buyers seeking a spacious, fuel-efficient, and dependable mid-size sedan. Its combination of practicality, affordability, and reasonable performance has ensured its continued relevance in the used car landscape.
