The Ford Fiesta Mk8, produced from 2017 to 2020, represented a significant evolution for Ford’s long-running supermini. Among the various engine and trim combinations offered, the three-door 1.0 EcoBoost 140 horsepower variant with a six-speed manual transmission occupied a sweet spot in the lineup, appealing to drivers seeking a balance of fuel efficiency, performance, and affordability. This model, built between July 2017 and May 2020, was positioned as a mid-range offering, bridging the gap between the base models and the more performance-oriented ST version. It played a key role in Ford’s strategy to offer a diverse Fiesta range catering to a wide spectrum of European and, to a lesser extent, North American tastes.
Technical Specifications
| Brand | Ford |
| Model | Fiesta |
| Generation | Fiesta VIII (Mk8) 3 door |
| Type (Engine) | 1.0 EcoBoost (140 Hp) Start-Stop |
| Start of production | July, 2017 |
| End of production | May, 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 3 |
| Fuel consumption (urban) | 5.8 l/100 km (40.6 US mpg, 48.7 UK mpg, 17.2 km/l) |
| Fuel consumption (extra urban) | 3.8 l/100 km (61.9 US mpg, 74.3 UK mpg, 26.3 km/l) |
| Fuel consumption (combined) | 4.5 l/100 km (52.3 US mpg, 62.8 UK mpg, 22.2 km/l) |
| CO2 emissions | 102 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9 sec |
| Acceleration 0 – 62 mph | 9 sec |
| Acceleration 0 – 60 mph | 8.6 sec |
| Maximum speed | 202 km/h (125.52 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 7.6 kg/Hp, 131 Hp/tonne |
| Weight-to-torque ratio | 5.9 kg/Nm, 168.4 Nm/tonne |
| Power | 140 Hp @ 6000 rpm |
| Power per litre | 140.3 Hp/l |
| Torque | 180 Nm @ 1500-5000 rpm (132.76 lb.-ft. @ 1500-5000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | YYJE, YYJG |
| Engine displacement | 998 cm3 (60.9 cu. in.) |
| Number of cylinders | 3 |
| Engine configuration | Inline |
| Cylinder Bore | 71.9 mm (2.83 in.) |
| Piston Stroke | 82 mm (3.23 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC, Ti-VCT |
| Engine oil capacity | 4.6 l (4.86 US qt | 4.05 UK qt) |
| Coolant | 5.8 l (6.13 US qt | 5.1 UK qt) |
| Kerb Weight | 1069-1144 kg (2356.74 – 2522.09 lbs.) |
| Max. weight | 1630-1645 kg (3593.53 – 3626.6 lbs.) |
| Max load | 501-561 kg (1104.52 – 1236.79 lbs.) |
| Trunk (boot) space – minimum | 292 l (10.31 cu. ft.) |
| Trunk (boot) space – maximum | 1093 l (38.6 cu. ft.) |
| Fuel tank capacity | 42 l (11.1 US gal | 9.24 UK gal) |
| Max. roof load | 50 kg (110.23 lbs.) |
| Permitted trailer load with brakes (12%) | 1000 kg (2204.62 lbs.) |
| Permitted trailer load without brakes | 570 kg (1256.63 lbs.) |
| Permitted towbar download | 65 kg (143.3 lbs.) |
| Length | 4040-4065 mm (159.06 – 160.04 in.) |
| Width | 1735 mm (68.31 in.) |
| Width with mirrors folded | 1783 mm (70.2 in.) |
| Width including mirrors | 1941 mm (76.42 in.) |
| Height | 1466-1476 mm (57.72 – 58.11 in.) |
| Wheelbase | 2493 mm (98.15 in.) |
| Drag coefficient (Cd) | 0.30 |
| 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 | Semi-independent, coil spring, Elastic beam |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 195/60 R15; 195/55 R16; 205/45 R17; 205/40 R18 |
| Wheel rims size | 6J x 15; 6.5J x 16; 7J x 17; 7J x 18 |
Powertrain & Engine Architecture
The heart of this Fiesta variant is the 1.0 EcoBoost engine, a three-cylinder turbocharged gasoline engine. Ford’s EcoBoost technology focuses on combining direct fuel injection, turbocharging, and variable valve timing (Ti-VCT) to deliver a high power output from a small displacement. The engine code for this specific output is typically YYJE or YYJG. The direct injection system precisely meters fuel into the cylinders, improving combustion efficiency and reducing emissions. The turbocharger, coupled with an intercooler, forces more air into the engine, boosting power and torque. The Ti-VCT system optimizes valve timing based on engine speed and load, further enhancing performance and fuel economy. The six-speed manual transmission was the standard offering, providing precise gear changes and contributing to the car’s engaging driving experience. The transmission’s gear ratios were tuned to maximize the engine’s torque delivery, providing good acceleration in everyday driving situations.
Driving Characteristics
The 140 hp EcoBoost engine provided a surprisingly lively driving experience for a supermini. While not as potent as the Fiesta ST, it offered ample power for both city driving and highway cruising. Acceleration from 0-60 mph took around 8.6 seconds, making it competitive with other vehicles in its class. The turbocharger provided a noticeable boost in power from around 1500 rpm, delivering strong torque throughout the rev range. The six-speed manual transmission allowed drivers to keep the engine in its optimal power band, resulting in responsive acceleration. Compared to the lower-powered 1.0 EcoBoost variants, this 140 hp version felt significantly more capable, especially when carrying passengers or luggage. The manual transmission also offered a more engaging driving experience than the optional automatic.
Equipment & Trim Levels
The 1.0 EcoBoost 140 hp Fiesta typically came equipped with features such as air conditioning, power windows, a basic audio system with Bluetooth connectivity, and alloy wheels. Higher trim levels, such as Titanium, added features like a touchscreen infotainment system, automatic headlights, rain-sensing wipers, and upgraded interior trim. Optional extras included a rear parking sensor, a panoramic sunroof, and a premium sound system. Interior upholstery was typically cloth, with higher trims offering partial leather options. The dashboard layout was modern and functional, with a focus on ease of use.
Chassis & Braking
The Fiesta Mk8 utilized a McPherson strut front suspension and a semi-independent rear suspension (Elastic beam). This setup provided a good balance of ride comfort and handling. The front brakes were ventilated discs, providing ample stopping power, while the rear brakes were drums. ABS (Anti-lock Braking System) was standard, enhancing safety. The steering was electric power-assisted, offering light and precise control. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The 1.0 EcoBoost 140 hp Fiesta received generally positive reviews from automotive critics. It was praised for its fuel efficiency, performance, and handling. Compared to the lower-powered EcoBoost variants, it offered a noticeable improvement in performance without sacrificing fuel economy. It was also seen as a more compelling alternative to competitors like the Volkswagen Polo and Opel Corsa. However, some critics noted that the three-cylinder engine could be a bit rough sounding at higher revs. Fuel economy figures consistently hovered around 52.3 US mpg combined, making it an attractive option for cost-conscious buyers.
Legacy
The 1.0 EcoBoost engine proved to be a reliable and durable powertrain, although some early models experienced issues with timing belt failures. Regular maintenance, including oil changes and timing belt replacements, is crucial for ensuring long-term reliability. Today, the Fiesta Mk8 1.0 EcoBoost 140 hp remains a popular choice in the used car market, offering a good balance of affordability, fuel efficiency, and driving enjoyment. Its compact size and nimble handling make it well-suited for urban environments, while its relatively low running costs make it an attractive option for first-time car buyers or those seeking a practical and economical vehicle.
