The Kia Optima III (facelift, introduced in 2013) 1.7 CRDi 16V, producing 136 horsepower, represented a key offering in Kia’s expanding European and global lineup. Positioned as a fuel-efficient and practical mid-size sedan, this variant was available from 2013 through 2015. It slotted into the Optima range below the more powerful 2.0-liter gasoline and diesel options, targeting buyers prioritizing economy and refinement over outright performance. The facelift brought styling updates and minor mechanical revisions to the already well-received third-generation Optima, further solidifying its position as a competitive alternative to established players like the Ford Mondeo and Volkswagen Passat.
Technical Specifications
| Brand | Kia |
| Model | Optima |
| Generation | Optima III (facelift 2013) |
| Type (Engine) | 1.7 CRDi 16V (136 Hp) |
| Start of production | 2013 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6.1 l/100 km (38.6 US mpg, 46.3 UK mpg, 16.4 km/l) |
| Fuel consumption (extra urban) | 4.5 l/100 km (52.3 US mpg, 62.8 UK mpg, 22.2 km/l) |
| Fuel consumption (combined) | 5.1 l/100 km (46.1 US mpg, 55.4 UK mpg, 19.6 km/l) |
| CO2 emissions | 133 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.3 sec |
| Acceleration 0 – 62 mph | 10.3 sec |
| Acceleration 0 – 60 mph | 9.8 sec |
| Maximum speed | 202 km/h (125.52 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 11 kg/Hp, 90.7 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 216.7 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 | 1500 kg (3306.93 lbs.) |
| Max. weight | 2050 kg (4519.48 lbs.) |
| Max load | 550 kg (1212.54 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, 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 |
| 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 diesel family, known for its relatively compact size and efficiency. The engine utilizes a common-rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. A turbocharger with an intercooler is employed to boost power and torque, mitigating turbo lag and improving responsiveness. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, enhancing breathing and contributing to its power output. The 16:1 compression ratio is typical for diesel engines, maximizing efficiency. The engine is transversely mounted in the front of the vehicle, driving the front wheels. The 6-speed manual transmission was standard, offering a balance between fuel economy and driver engagement.
Driving Characteristics
The 136 horsepower and 325 Nm (239.71 lb-ft) of torque provided by the 1.7 CRDi engine delivered adequate, though not exhilarating, performance. Acceleration from 0-60 mph took around 9.8 seconds, making it competitive within its class but noticeably slower than the more powerful gasoline or 2.0-liter diesel Optima models. The engine’s torque peak, available from 2000-2500 rpm, provided good mid-range punch for everyday driving and overtaking maneuvers. The 6-speed manual transmission was well-matched to the engine’s characteristics, offering precise shifts and allowing the driver to keep the engine in its optimal power band. Compared to the automatic transmission option available on other Optima trims, the manual offered better fuel economy and a more engaging driving experience. However, it lacked the convenience of an automatic in stop-and-go traffic.
Equipment & Trim Levels
The 1.7 CRDi 16V typically came with a reasonable level of standard equipment. This included air conditioning, electric front and rear windows, central locking, a basic audio system with USB connectivity, and alloy wheels. Safety features such as ABS, Electronic Stability Control (ESC), and multiple airbags were also standard. Higher trim levels, often denoted by ‘2’ or ‘3’ designations, added features like climate control, a more advanced audio system, parking sensors, and leather upholstery. Optional extras included a panoramic sunroof, navigation system, and heated seats.
Chassis & Braking
The Optima III utilized a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable and controlled ride. The suspension was tuned to prioritize comfort over sporty handling. Front brakes were ventilated discs, providing ample stopping power, while rear brakes were solid discs. The steering was a rack and pinion system, offering reasonable precision and feedback. The 1500 kg (3306.93 lbs) kerb weight meant that the braking system was adequately sized for the vehicle’s mass.
Market Reception & Comparison
The 1.7 CRDi Optima was generally well-received by automotive critics for its fuel efficiency, comfortable ride, and spacious interior. It was often praised as a strong value proposition, offering a lot of car for the money. However, some reviewers noted that the engine lacked the refinement and power of its competitors, particularly the Volkswagen Passat and Ford Mondeo. Compared to the 2.0-liter diesel Optima, the 1.7 CRDi offered significantly better fuel economy but at the expense of performance. The 1.7 CRDi was a popular choice for fleet buyers and private individuals seeking a practical and economical mid-size sedan.
Legacy
The 1.7 CRDi engine, while not known for being exceptionally robust, generally proved reliable with regular maintenance. Common issues included diesel particulate filter (DPF) clogging, particularly on vehicles used primarily for short journeys. The Optima III, as a whole, has established a reputation for being a dependable and affordable used car. Today, these models represent a good value for buyers seeking a spacious and fuel-efficient sedan, though potential buyers should be aware of the potential DPF issues and ensure the vehicle has been properly maintained.
