The Kia Optima III, specifically the facelifted version introduced in 2013, represented a significant step forward for the Korean automaker in the mid-size sedan segment. The 1.7 CRDi 16V (136 hp) Automatic variant, produced from 2013 to 2015, was positioned as a fuel-efficient and comfortable option within the Optima lineup, aimed at buyers prioritizing economy and ease of driving over outright performance. This model sat below the more powerful 2.0-liter petrol and diesel options, offering a balance between cost and features. It was primarily marketed in Europe and other regions where diesel engines held significant market share.
Technical Specifications
| Brand | Kia |
| Model | Optima |
| Generation | Optima III (facelift 2013) |
| Type (Engine) | 1.7 CRDi 16V (136 Hp) Automatic |
| Start of production | 2013 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 7.9 l/100 km (29.8 US mpg, 35.8 UK mpg, 12.7 km/l) |
| Fuel consumption (extra urban) | 4.9 l/100 km (48 US mpg, 57.6 UK mpg, 20.4 km/l) |
| Fuel consumption (combined) | 6 l/100 km (39.2 US mpg, 47.1 UK mpg, 16.7 km/l) |
| CO2 emissions | 158 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 11.6 sec |
| Acceleration 0 – 62 mph | 11.6 sec |
| Acceleration 0 – 60 mph | 11 sec |
| Maximum speed | 197 km/h (122.41 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 11.2 kg/Hp, 89.5 Hp/tonne |
| Weight-to-torque ratio | 4.7 kg/Nm, 213.8 Nm/tonne |
| Power | 136 Hp @ 4000 rpm |
| Power per litre | 80.7 Hp/l |
| Torque | 325 Nm @ 2000-2500 rpm (239.71 lb.-ft. @ 2000-2500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | U II / D4FD |
| Engine displacement | 1685 cm3 (102.83 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 77.2 mm (3.04 in.) |
| Piston Stroke | 90 mm (3.54 in.) |
| Compression ratio | 17:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.3 l (5.6 US qt | 4.66 UK qt) |
| Coolant | 6.6 l (6.97 US qt | 5.81 UK qt) |
| Kerb Weight | 1520 kg (3351.03 lbs.) |
| Max. weight | 2050 kg (4519.48 lbs.) |
| Max load | 530 kg (1168.45 lbs.) |
| Trunk (boot) space – minimum | 505 l (17.83 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Permitted trailer load with brakes (12%) | 1300 kg (2866.01 lbs.) |
| Permitted trailer load without brakes | 650 kg (1433 lbs.) |
| Permitted towbar download | 60 kg (132.28 lbs.) |
| Length | 4845 mm (190.75 in.) |
| Width | 1830 mm (72.05 in.) |
| Height | 1455 mm (57.28 in.) |
| Wheelbase | 2795 mm (110.04 in.) |
| Front track | 1601 mm (63.03 in.) |
| Rear (Back) track | 1601 mm (63.03 in.) |
| Front overhang | 965 mm (37.99 in.) |
| Rear overhang | 1085 mm (42.72 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.2 m (36.75 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, automatic 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 | Electric Steering |
| Tires size | 205/60 R16 |
| Wheel rims size | 6.5J x 16 |
Powertrain & Engine Architecture
The heart of this Optima variant is the U II / D4FD 1.7-liter four-cylinder diesel engine. This engine is a member of Kia/Hyundai’s U-series, known for its relatively compact size and efficiency. It utilizes a common-rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. The engine features a turbocharger with an intercooler, boosting power output and improving torque delivery. The 16-valve DOHC (Double Overhead Camshaft) configuration further enhances breathing and efficiency. The engine’s 17:1 compression ratio is typical for a diesel engine, contributing to its thermal efficiency. Paired with the engine is a six-speed automatic transmission, designed to provide smooth shifts and contribute to fuel economy. This transmission isn’t known for particularly sporty performance, prioritizing comfort and efficiency over rapid gear changes.
Driving Characteristics
The 136 hp and 325 Nm (239.71 lb-ft) of torque offered by this powertrain configuration resulted in a comfortable, rather than exhilarating, driving experience. Acceleration from 0-60 mph took around 11 seconds, and top speed was approximately 122 mph. The automatic transmission, while smooth, could feel somewhat sluggish during quick overtaking maneuvers. The engine’s peak torque, available from 2000-2500 rpm, provided adequate pulling power for everyday driving situations. Compared to the higher-output 2.0-liter diesel, this variant felt noticeably less responsive. However, it offered a more relaxed driving experience, particularly in urban environments. The gear ratios were tuned for fuel efficiency, meaning the engine often operated at lower RPMs during cruising.
Equipment & Trim Levels
The 1.7 CRDi Automatic typically came equipped with a reasonable level of standard features. These generally included air conditioning, power windows, central locking, a basic audio system with USB connectivity, and alloy wheels. Safety features such as ABS, airbags, and stability control were also standard. Higher trim levels offered options like leather upholstery, a sunroof, a more advanced audio system, and parking sensors. Interior upholstery was typically cloth, with a focus on durability rather than luxury. The dashboard layout was functional and straightforward, prioritizing ease of use.
Chassis & Braking
The Optima III utilized a front-wheel-drive layout with independent suspension at all four corners. The front suspension employed a McPherson strut design, while the rear featured a multi-link setup. This configuration aimed to provide a balance between ride comfort and handling. Braking duties were handled by ventilated discs at the front and solid discs at the rear. The braking system was adequate for the vehicle’s weight and performance, with ABS providing additional safety. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The 1.7 CRDi Automatic Optima was generally well-received by critics as a practical and fuel-efficient family sedan. It was praised for its comfortable ride, spacious interior, and competitive pricing. However, some reviewers noted its lack of outright performance compared to rivals. Compared to the 2.0-liter diesel variants, the 1.7 CRDi offered significantly better fuel economy, but at the expense of power. The 1.7 CRDi also proved to be more reliable than some of the more complex engine options in the Optima lineup, with fewer reported issues related to the turbocharger or fuel injection system.
Legacy
The 1.7 CRDi engine, when properly maintained, has proven to be a relatively durable powertrain. Common issues include diesel particulate filter (DPF) clogging, particularly with frequent short journeys, and potential wear in the turbocharger. However, these are typical concerns for modern diesel engines. In the used car market, this Optima variant represents a good value proposition for buyers seeking a comfortable, economical, and reliable mid-size sedan. Its fuel efficiency and relatively low maintenance costs make it an attractive option for those covering high mileage. The Optima III, in general, helped to elevate Kia’s brand image and establish it as a serious competitor in the global automotive market.
