The SEAT León III 1.4 TSI (140 Hp) start/stop is a front-wheel-drive hatchback that was produced between 2012 and 2014. Part of the third generation of the León, this model was primarily marketed in Europe as a compact family car, competing with vehicles like the Volkswagen Golf, Ford Focus, and Opel Astra. While SEAT vehicles have limited official presence in the United States, the León III represents a significant step forward in the brand’s design, technology, and overall quality, showcasing a blend of practicality, efficiency, and sporty handling. This particular variant, powered by a 1.4-liter turbocharged gasoline engine, offered a balance between performance and fuel economy, incorporating start/stop technology to further reduce emissions.
SEAT León III 1.4 TSI: Overview and Market Position
The third-generation SEAT León, launched in 2012, marked a departure from its predecessors with a more sophisticated and modern design. Built on the Volkswagen Group’s MQB platform – a modular transverse matrix – the León III benefited from advancements in engineering and technology. The 1.4 TSI variant, producing 140 horsepower, was a popular choice in European markets, offering a compelling alternative to larger-displacement engines without sacrificing driving enjoyment. The start/stop system, a standard feature, contributed to improved fuel efficiency in urban driving conditions. The León’s position in the European market was as a value-oriented, stylish, and practical hatchback, appealing to a broad range of buyers.
Engine & Performance
The heart of the SEAT León III 1.4 TSI is a 1.4-liter, inline-four cylinder gasoline engine. This engine, designated CHPA or CPTA, utilizes direct fuel injection and is equipped with a turbocharger and intercooler to boost power and efficiency. It produces a maximum power output of 140 horsepower at 4,500-6,000 rpm, and a torque of 250 Nm (184.39 lb.-ft.) between 1,500 and 3,500 rpm. This broad torque curve provides responsive acceleration and good in-gear performance. The engine’s power-to-liter ratio is 100.4 hp/l. Paired with a six-speed manual transmission, the León III 1.4 TSI can accelerate from 0 to 100 km/h (0-62 mph) in 8.2 seconds, and 0 to 60 mph in a calculated 7.8 seconds. The top speed is rated at 211 km/h (131.11 mph). The inclusion of a start/stop system helps to minimize fuel consumption in city driving, contributing to a combined fuel economy of 5.2 l/100 km (45.2 US mpg, 54.3 UK mpg).
Design & Features
The SEAT León III 1.4 TSI is a five-door hatchback with a sleek and contemporary design. The exterior features sharp lines, a distinctive front grille, and sculpted body panels. The interior is well-appointed, offering a comfortable and functional cabin for five occupants. Key features include a modern dashboard layout, supportive seats, and a practical cargo area. The trunk (boot) space is 380 liters (13.42 cu. ft.) minimum. Safety features, typical for vehicles of this era, include ABS (Anti-lock Braking System) and a robust chassis design. The vehicle’s dimensions are 4,263 mm (167.83 in.) in length, 1,816 mm (71.5 in.) in width, and 1,459 mm (57.44 in.) in height. The wheelbase measures 2,636 mm (103.78 in.). The suspension utilizes coil springs with an independent McPherson strut setup at the front and an elastic beam at the rear, providing a balance between ride comfort and handling precision.
Technical Specifications
| Brand | Seat |
| Model | Leon |
| Generation | Leon III |
| Type (Engine) | 1.4 TSI (140 Hp) start/stop |
| Start of production | September, 2012 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban (NEDC) | 6.4 l/100 km (36.8 US mpg, 44.1 UK mpg, 15.6 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 4.5 l/100 km (52.3 US mpg, 62.8 UK mpg, 22.2 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 5.2 l/100 km (45.2 US mpg, 54.3 UK mpg, 19.2 km/l) |
| CO2 emissions (NEDC) | 119 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.2 sec |
| Acceleration 0 – 62 mph | 8.2 sec |
| Acceleration 0 – 60 mph | 7.8 sec |
| Maximum speed | 211 km/h (131.11 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 8.3 kg/Hp, 121.1 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 216.3 Nm/tonne |
| Power | 140 Hp @ 4500-6000 rpm |
| Power per litre | 100.4 Hp/l |
| Torque | 250 Nm @ 1500-3500 rpm (184.39 lb.-ft. @ 1500-3500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | CHPA, CPTA |
| Engine displacement | 1395 cm3 (85.13 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 74.5 mm (2.93 in.) |
| Piston Stroke | 80 mm (3.15 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 4 l (4.23 US qt | 3.52 UK qt) |
| Coolant | 10 l (10.57 US qt | 8.8 UK qt) |
| Kerb Weight | 1156 kg (2548.54 lbs.) |
| Max. weight | 1750 kg (3858.09 lbs.) |
| Max load | 594 kg (1309.55 lbs.) |
| Trunk (boot) space – minimum | 380 l (13.42 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Permitted trailer load with brakes (8%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load with brakes (12%) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load without brakes | 610 kg (1344.82 lbs.) |
| Length | 4263 mm (167.83 in.) |
| Width | 1816 mm (71.5 in.) |
| Width including mirrors | 1975 mm (77.76 in.) |
| Height | 1459 mm (57.44 in.) |
| Wheelbase | 2636 mm (103.78 in.) |
| Front track | 1549 mm (60.98 in.) |
| Rear (Back) track | 1520 mm (59.84 in.) |
| Front overhang | 853 mm (33.58 in.) |
| Rear overhang | 774 mm (30.47 in.) |
| Ride height (ground clearance) | 144 mm (5.67 in.) |
| Minimum turning circle (turning diameter) | 10.2 m (33.46 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 | Coil spring, Independent type McPherson |
| Rear suspension | Coil spring, Elastic beam |
| Front brakes | Ventilated discs, 288×25 mm |
| Rear brakes | Disc, 253×10 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 205/55 R16; 225/45 R17; 225/40 R18 |
| Wheel rims size | 6.5J x 16; 7J x 17; 7.5J x 17; 7.5J x 18 |

