The SEAT León III 1.6 TDI (105 Hp) DSG start/stop is a compact hatchback that was produced by the Spanish automobile manufacturer SEAT between 2012 and 2015. Part of the third generation of the León, this model was primarily aimed at the European market, where fuel efficiency and diesel engines were highly favored. While SEAT vehicles were not officially sold in the United States during this period, the León III represents a significant step in the brand’s development, showcasing advancements in design, technology, and driving dynamics within the competitive small family car segment.
SEAT León III 1.6 TDI: Overview and Market Position
The SEAT León III, launched in 2012, was built on the Volkswagen Group’s MQB platform, shared with models like the Volkswagen Golf, Audi A3, and Škoda Octavia. This platform allowed for a lighter, more rigid chassis, contributing to improved handling and safety. The 1.6 TDI variant, equipped with a 105 horsepower diesel engine and a dual-clutch DSG transmission, was a popular choice for buyers seeking a balance between performance and economy. In Europe, this model competed with vehicles like the Ford Focus, Opel Astra, and Peugeot 308, offering a stylish alternative with a focus on value and driving pleasure. The inclusion of start/stop technology further enhanced its appeal to environmentally conscious consumers.
Engine & Performance
The heart of the SEAT León III 1.6 TDI is a 1.6-liter, inline-four cylinder diesel engine, designated the CLHA. This engine produces 105 horsepower at 3000-4000 rpm and 250 Nm (184.39 lb.-ft.) of torque between 1500-2750 rpm. The turbocharger and intercooler work in tandem to optimize power delivery and efficiency. The engine’s 16.2:1 compression ratio is typical for a diesel, contributing to its fuel efficiency. Power is delivered to the front wheels via a seven-speed dual-clutch DSG (Direct-Shift Gearbox) automatic transmission. This transmission provides quick and smooth gear changes, enhancing both acceleration and fuel economy. Acceleration from 0 to 100 km/h (0-62 mph) takes 10.7 seconds, while 0 to 60 mph is achieved in approximately 10.2 seconds. The vehicle has a maximum speed of 191 km/h (118.68 mph). The weight-to-power ratio of 12.4 kg/Hp and weight-to-torque ratio of 5.2 kg/Nm demonstrate a reasonable balance between engine output and vehicle mass.
Design & Features
The SEAT León III features a modern and sporty hatchback design. Its five-door configuration provides practical access to the interior, which comfortably seats five passengers. The exterior styling is characterized by sharp lines, a distinctive front grille, and sculpted body panels. The interior is well-appointed, with a focus on ergonomics and functionality. Standard features included ABS (Anti-lock Braking System), power windows, and central locking. The start/stop system, a key feature of this model, automatically shuts off the engine when the vehicle is stationary, reducing fuel consumption and emissions. The trunk offers 380 liters of space with the rear seats up, expanding to 1210 liters when folded down, providing ample cargo capacity for everyday use. The vehicle’s dimensions are 4263 mm (167.83 in) in length, 1816 mm (71.5 in) in width, and 1459 mm (57.44 in) in height, making it a relatively compact vehicle suitable for urban environments.
Technical Specifications
| Brand | Seat |
| Model | Leon |
| Generation | Leon III |
| Type (Engine) | 1.6 TDI (105 Hp) DSG start/stop |
| Start of production | September, 2012 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 4.6 l/100 km (51.1 US mpg, 61.4 UK mpg, 21.7 km/l) |
| Fuel consumption (extra urban) | 3.5 l/100 km (67.2 US mpg, 80.7 UK mpg, 28.6 km/l) |
| Fuel consumption (combined) | 3.9 l/100 km (60.3 US mpg, 72.4 UK mpg, 25.6 km/l) |
| CO2 emissions | 102 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.7 sec |
| Acceleration 0 – 62 mph | 10.7 sec |
| Acceleration 0 – 60 mph | 10.2 sec |
| Maximum speed | 191 km/h (118.68 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 12.4 kg/Hp |
| Weight-to-torque ratio | 5.2 kg/Nm |
| Power | 105 Hp @ 3000-4000 rpm |
| Torque | 250 Nm @ 1500-2750 rpm (184.39 lb.-ft.) |
| Engine layout | Front, Transverse |
| Engine Model/Code | CLHA |
| Engine displacement | 1598 cm3 (97.52 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 79.5 mm (3.13 in.) |
| Piston Stroke | 80.5 mm (3.17 in.) |
| Compression ratio | 16.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 4.6 l (4.86 US qt | 4.05 UK qt) |
| Coolant | 8 l (8.45 US qt | 7.04 UK qt) |
| Kerb Weight | 1306 kg (2879.24 lbs.) |
| Max. weight | 1810 kg (3990.37 lbs.) |
| Max load | 504 kg (1111.13 lbs.) |
| Trunk (boot) space – minimum | 380 l (13.42 cu. ft.) |
| Trunk (boot) space – maximum | 1210 l (42.73 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Length | 4263 mm (167.83 in.) |
| Width | 1816 mm (71.5 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.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission DSG |
The SEAT León III 1.6 TDI DSG start/stop represented a compelling package for European buyers seeking an efficient, practical, and stylish compact hatchback. Its combination of a fuel-efficient diesel engine, smooth-shifting DSG transmission, and modern features made it a popular choice in a highly competitive segment.
