The SEAT Leon III SC 1.4 TSI (140 Hp) start/stop is a compact coupe produced by the Spanish automobile manufacturer SEAT between 2012 and 2014. Part of the third generation of the Leon, the SC (SportCoupe) variant offered a three-door body style, targeting a more youthful and style-conscious buyer. While SEAT is a significant player in the European automotive market, particularly in Spain and Germany, the Leon was never officially sold in the United States. This model represented SEAT’s attempt to blend practicality with a sporty aesthetic, utilizing a downsized turbocharged engine for improved fuel efficiency and performance.
SEAT Leon III SC 1.4 TSI: Overview and Market Positioning
The Leon III SC occupied the compact class, competing with vehicles like the Volkswagen Golf, Ford Focus, and Opel Astra in Europe. The “SC” designation signified a coupe version, distinguished by its three-door configuration and a slightly more aggressive styling compared to the five-door Leon hatchback. The 1.4 TSI engine, equipped with start/stop technology, was a key offering in the lineup, balancing performance with reduced emissions and fuel consumption. The introduction of the SC variant broadened the Leon’s appeal, attracting customers seeking a more dynamic and individualistic vehicle.
Engine & Performance
The SEAT Leon III SC 1.4 TSI was powered by a 1.4-liter inline-four cylinder engine, utilizing direct fuel injection and a turbocharger with an intercooler. This engine produced 140 horsepower at 4,500-6,000 rpm and 250 Nm (184.39 lb.-ft.) of torque between 1,500-3,500 rpm. The engine code for this variant was CHPA or CPTA. The combination of turbocharging and direct injection allowed for a relatively small displacement engine to deliver respectable performance. Acceleration from 0 to 100 km/h (0-62 mph) took 8.1 seconds, while 0-60 mph was achieved in approximately 7.7 seconds. The vehicle boasted a maximum speed of 211 km/h (131.11 mph). The six-speed manual transmission was the standard gearbox, providing drivers with direct control over the powertrain. The start/stop system further enhanced fuel economy by automatically shutting off the engine when the vehicle was stationary, such as at traffic lights.
Design & Features
The SEAT Leon III SC featured a coupe body style with three doors and seating for five passengers. Its design language incorporated sharp lines and a sporty silhouette, differentiating it from the more conventional five-door hatchback. The front end was characterized by distinctive headlights and a prominent grille, while the rear featured a sloping roofline and LED taillights. Inside, the cabin was designed with a focus on driver ergonomics and modern aesthetics. Standard features included air conditioning, power windows, and a basic audio system. Higher trim levels offered options such as alloy wheels, a touchscreen infotainment system, and advanced safety features. Safety features included ABS (Anti-lock Braking System) as standard. The trunk offered a minimum capacity of 380 liters (13.42 cu. ft.), providing adequate space for luggage and everyday items. The vehicle’s kerb weight was 1,136 kg (2,504.45 lbs), contributing to its agile handling characteristics.
Technical Specifications
| Brand | Seat |
| Model | Leon |
| Generation | Leon III SC |
| 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 | Coupe |
| Seats | 5 |
| Doors | 3 |
| Fuel consumption (urban) | 6.4 l/100 km (36.8 US mpg, 44.1 UK mpg, 15.6 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) | 5.2 l/100 km (45.2 US mpg, 54.3 UK mpg, 19.2 km/l) |
| CO2 emissions | 119 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.1 sec |
| Acceleration 0 – 62 mph | 8.1 sec |
| Acceleration 0 – 60 mph | 7.7 sec |
| Maximum speed | 211 km/h (131.11 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 8.1 kg/Hp |
| Weight-to-torque ratio | 4.5 kg/Nm |
| Power | 140 Hp @ 4500-6000 rpm |
| 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 | 1136 kg (2504.45 lbs.) |
| Max. weight | 1730 kg (3814 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 | 600 kg (1322.77 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) | 10.1 m (33.14 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 |


