The Mazda 3 IV Hatchback 1.8 SkyActiv-D (116 hp) was a diesel-powered variant of the fourth-generation Mazda 3, produced between 2019 and 2021. Positioned as an economy-focused option within the broader Mazda 3 lineup, it aimed to deliver a balance of fuel efficiency and practicality. This model was primarily sold in European and Asian markets, where diesel engines remained popular due to favorable taxation and fuel costs. It falls within the broader BD platform (internally known as 1HX0) shared with other Mazda models, representing a significant step forward in Mazda’s design and engineering philosophy.
Technical Specifications
| Brand | Mazda |
| Model | 3 |
| Generation | IV Hatchback |
| Type (Engine) | 1.8 SkyActiv-D (116 Hp) |
| Start of production | 2019 |
| End of production | 2021 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 5-5.1 l/100 km (47 – 46.1 US mpg, 56.5 – 55.4 UK mpg, 20 – 19.6 km/l) |
| CO2 emissions (WLTP) | 131-133 g/km |
| Fuel consumption (urban) | 4.6-4.7 l/100 km (51.1 – 50 US mpg, 61.4 – 60.1 UK mpg, 21.7 – 21.3 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) | 4.1-4.2 l/100 km (57.4 – 56 US mpg, 68.9 – 67.3 UK mpg, 24.4 – 23.8 km/l) |
| CO2 emissions | 107-109 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 | 194 km/h (120.55 mph) |
| Emission standard | Euro 6d-Temp |
| Weight-to-power ratio | 11.2 kg/Hp, 89.3 Hp/tonne |
| Weight-to-torque ratio | 4.8 kg/Nm, 207.9 Nm/tonne |
| Power | 116 Hp @ 4000 rpm |
| Power per litre | 65.9 Hp/l |
| Torque | 270 Nm @ 1600-2600 rpm (199.14 lb.-ft. @ 1600-2600 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | S8Y1, S8Y2 |
| Engine displacement | 1759 cm3 (107.34 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 79 mm (3.11 in.) |
| Piston Stroke | 89.7 mm (3.53 in.) |
| Compression ratio | 14.8:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 5.1 l (5.39 US qt | 4.49 UK qt) |
| Coolant | 6.9 l (7.29 US qt | 6.07 UK qt) |
| Kerb Weight | 1299-1406 kg (2863.8 – 3099.7 lbs.) |
| Max. weight | 1898 kg (4184.37 lbs.) |
| Max load | 492-599 kg (1084.67 – 1320.57 lbs.) |
| Trunk (boot) space – minimum | 351 l (12.4 cu. ft.) |
| Trunk (boot) space – maximum | 1026 l (36.23 cu. ft.) |
| Fuel tank capacity | 51 l (13.47 US gal | 11.22 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (8%) | 1300 kg (2866.01 lbs.) |
| Permitted trailer load with brakes (12%) | 1300 kg (2866.01 lbs.) |
| Permitted trailer load without brakes | 600 kg (1322.77 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4460 mm (175.59 in.) |
| Width | 1795 mm (70.67 in.) |
| Width including mirrors | 2028 mm (79.84 in.) |
| Height | 1435 mm (56.5 in.) |
| Wheelbase | 2725 mm (107.28 in.) |
| Ride height (ground clearance) | 135 mm (5.31 in.) |
| Minimum turning circle | 10.6 m (34.78 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent type McPherson |
| Rear suspension | Torsion |
| Front brakes | Disc |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 205/60 R16; 215/45 R18 |
| Wheel rims size | 16; 18 |
Powertrain & Engine Architecture
The heart of the Mazda 3 1.8 SkyActiv-D is the S8Y1 or S8Y2 engine, a 1.8-liter inline-four cylinder diesel engine. This engine is a key component of Mazda’s SkyActiv technology, designed to maximize efficiency and reduce emissions. It features a high compression ratio of 14.8:1, achieved through careful engineering and precise fuel injection. The engine utilizes a common-rail direct injection system, delivering fuel directly into the combustion chamber at extremely high pressure. This, combined with a variable geometry turbocharger and intercooler, optimizes combustion and boosts torque output. The engine’s block is constructed from aluminum alloy to reduce weight. The 6-speed manual transmission was standard, providing a balance between fuel economy and driver engagement.
Driving Characteristics
The 116 hp output and 270 Nm (199 lb-ft) of torque delivered by the 1.8 SkyActiv-D engine provided adequate, though not exhilarating, performance. Acceleration from 0-60 mph took around 9.8 seconds, and top speed was approximately 120.55 mph. The engine’s torque curve was relatively flat, providing good responsiveness in everyday driving situations. However, compared to higher-output versions of the Mazda 3, such as those equipped with the 2.0-liter gasoline engine, the 1.8 SkyActiv-D felt less powerful, particularly during overtaking maneuvers. The manual transmission’s gear ratios were tuned for fuel efficiency, meaning that frequent downshifts were often required to maintain momentum on inclines or when accelerating quickly. The engine was relatively refined for a diesel, with minimal vibration and noise intrusion into the cabin.
Equipment & Trim Levels
The 1.8 SkyActiv-D typically came in base or mid-level trim configurations. Standard equipment generally included air conditioning, power windows, power mirrors, a basic audio system with Bluetooth connectivity, and a suite of safety features such as ABS, stability control, and multiple airbags. Higher trim levels added features like alloy wheels, a touchscreen infotainment system, navigation, and advanced driver-assistance systems (ADAS) such as lane departure warning and automatic emergency braking. Interior upholstery was typically cloth, with options for leather or partial leather in higher trims. Dashboard design followed Mazda’s minimalist aesthetic, with a focus on ergonomics and ease of use.
Chassis & Braking
The Mazda 3 IV Hatchback featured a McPherson strut front suspension and a torsion beam rear suspension. This setup provided a good balance between ride comfort and handling. The chassis was relatively lightweight, contributing to the car’s agility. Braking systems consisted of disc brakes on all four wheels, providing adequate stopping power. ABS (Anti-lock Braking System) was standard, enhancing safety during emergency braking situations. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The Mazda 3 1.8 SkyActiv-D was generally well-received by automotive critics for its fuel efficiency and refined driving experience. However, some reviewers noted that the engine lacked the punch of its gasoline counterparts. Compared to other diesel-powered hatchbacks in its class, the Mazda 3 offered a more premium interior and a more engaging driving experience. Fuel economy was a key selling point, with the car achieving between 47 and 46.1 US mpg on the combined cycle. Reliability was generally good, although diesel engines can be more prone to issues with the diesel particulate filter (DPF) if not driven on longer journeys regularly.
Legacy
The Mazda 3 1.8 SkyActiv-D represents a significant step in Mazda’s commitment to efficient and environmentally friendly vehicles. While diesel engines have become less popular in recent years due to tightening emissions regulations, the 1.8 SkyActiv-D remains a viable option for those seeking a fuel-efficient and reliable hatchback. On the used car market, these models are generally well-regarded, but potential buyers should be aware of the potential for DPF issues and ensure that the car has been properly maintained. The SkyActiv-D engine’s technology continues to influence Mazda’s powertrain development, paving the way for future generations of efficient and sustainable vehicles.
