The Mazda 3 III Sedan, specifically the facelifted version introduced in 2017 (model code BM), represented a significant evolution of Mazda’s compact car offering. The 2.0 SkyActiv-G variant, producing 155 horsepower and paired with Mazda’s Skyactiv-Drive automatic transmission, was a key model in the lineup, primarily sold from 2018. This configuration aimed to balance fuel efficiency with acceptable performance, targeting buyers seeking a comfortable and refined daily driver. It occupied a mid-range position within the broader Mazda 3 sedan portfolio, slotting between the base 2.0-liter manual and the more performance-oriented options.
Technical Specifications
| Brand | Mazda |
| Model | 3 |
| Generation | 3 III Sedan (BM, facelift 2017) |
| Type (Engine) | 2.0 SkyActiv-G (155 Hp) Skyactiv-Drive |
| Start of production | 2018 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 8.4 l/100 km (28 US mpg, 33.6 UK mpg, 11.9 km/l) |
| Fuel consumption (extra urban) | 6.4 l/100 km (36.8 US mpg, 44.1 UK mpg, 15.6 km/l) |
| Fuel consumption (combined) | 7.6 l/100 km (30.9 US mpg, 37.2 UK mpg, 13.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 8.7 kg/Hp, 115.2 Hp/tonne |
| Weight-to-torque ratio | 6.6 kg/Nm, 150.8 Nm/tonne |
| Power | 155 Hp @ 6000 rpm |
| Power per litre | 77.6 Hp/l |
| Torque | 203 Nm @ 4000 rpm (149.73 lb.-ft. @ 4000 rpm) |
| Maximum engine speed | 6800 rpm |
| Engine layout | Front, Transverse |
| Engine displacement | 1998 cm3 (121.93 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 83.5 mm (3.29 in.) |
| Piston Stroke | 91.2 mm (3.59 in.) |
| Compression ratio | 13:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC-VVT |
| Engine oil capacity | 4.2 l (4.44 US qt | 3.7 UK qt) |
| Coolant | 6.3 l (6.66 US qt | 5.54 UK qt) |
| Kerb Weight | 1346 kg (2967.42 lbs.) |
| Trunk (boot) space (minimum) | 351 l (12.4 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Length | 4580 mm (180.31 in.) |
| Width | 1796 mm (70.71 in.) |
| Height | 1455 mm (57.28 in.) |
| Wheelbase | 2700 mm (106.3 in.) |
| Front track | 1554 mm (61.18 in.) |
| Rear track | 1560 mm (61.42 in.) |
| Ride height (ground clearance) | 155 mm (6.1 in.) |
| Minimum turning circle | 10.6 m (34.78 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| 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 |
| Wheel rims size | 6.5J x 16 |
INTRODUCTION
The Mazda 3 III Sedan (BM) represented a significant step forward for Mazda, embodying the company’s “KODO – Soul of Motion” design language and incorporating the SkyActiv technology suite. Introduced in 2014 and facelifted in 2017, the BM generation aimed to deliver a more premium driving experience in the compact segment. The 2.0 SkyActiv-G with the Skyactiv-Drive automatic, launched in 2018, was designed to appeal to a broad audience seeking a balance of efficiency, comfort, and Mazda’s renowned driving dynamics. This variant was primarily marketed in North America, Europe, and Asia-Pacific regions.
Powertrain & Engine Architecture
At the heart of this Mazda 3 variant lies the PE-VPH 2.0-liter SkyActiv-G inline-four cylinder engine. This engine is characterized by its high compression ratio of 13:1, achieved through advanced combustion control and optimized engine geometry. The SkyActiv-G engine utilizes direct injection, enhancing fuel efficiency and power output. The valvetrain employs a Dual Overhead Camshaft (DOHC) configuration with Variable Valve Timing (VVT) on both intake and exhaust camshafts, optimizing engine performance across the rev range. The Skyactiv-Drive automatic transmission is a six-speed unit with a torque converter. Unlike traditional automatic transmissions, the Skyactiv-Drive prioritizes fuel efficiency by utilizing a wider range of gear ratios and quicker shift times. It also features a unique shift logic designed to anticipate driver inputs and maintain optimal engine speed.
Driving Characteristics
The 155 hp and 203 Nm (149.73 lb-ft) of torque delivered by the 2.0-liter engine and Skyactiv-Drive transmission resulted in a comfortable, yet not particularly sporty, driving experience. Acceleration was adequate for everyday driving, but noticeably slower than the higher-output 2.5-liter variants or those equipped with a manual transmission. The automatic transmission’s programming prioritized fuel economy, sometimes resulting in slightly hesitant responses during quick acceleration. The gear ratios were tuned for cruising efficiency, making it a pleasant highway companion. Compared to the manual transmission version of the same engine, the automatic offered greater convenience but sacrificed some driver engagement. The Skyactiv-Drive’s smooth shifting minimized disruptions, contributing to a refined ride quality.
Equipment & Trim Levels
The 2.0 SkyActiv-G with Skyactiv-Drive typically came standard with features such as air conditioning, power windows and locks, a basic infotainment system with Bluetooth connectivity, and a rearview camera. Higher trim levels, such as the Grand Touring, added features like leather upholstery, a premium sound system, automatic climate control, and advanced safety technologies like blind-spot monitoring and lane departure warning. Optional extras included a sunroof, navigation system, and adaptive front lighting. Interior upholstery was typically cloth on lower trims, upgrading to leatherette or full leather on higher-spec models. Dashboard configurations were consistent across the range, featuring a clean and modern design with a focus on ergonomics.
Chassis & Braking
The Mazda 3 III Sedan utilized a front-wheel-drive platform with an independent McPherson strut suspension in the front and an independent multi-link suspension in the rear. This suspension setup provided a good balance of ride comfort and handling precision. Stabilizer bars were standard on both axles, reducing body roll during cornering. Braking duties were handled by ventilated discs in the front and solid discs in the rear. Anti-lock Braking System (ABS) was standard, enhancing braking performance and stability. The chassis was designed to be lightweight, contributing to improved fuel efficiency and handling. The steering system employed an electric power steering (EPS) system, providing precise and responsive steering feel.
Market Reception & Comparison
Critics generally praised the Mazda 3 III Sedan for its stylish design, refined interior, and engaging driving dynamics. However, the 2.0-liter SkyActiv-G with the automatic transmission received mixed reviews. While appreciated for its fuel efficiency (around 31 mpg combined), some reviewers found the engine to be underpowered, particularly when compared to competitors offering turbocharged engines. The Skyactiv-Drive transmission was lauded for its smoothness and efficiency, but some found it to be less responsive than traditional automatic transmissions. Compared to the 2.5-liter variants, the 2.0-liter offered lower running costs but sacrificed performance. The 1.9 TDI diesel option (available in Europe) provided superior fuel economy and torque but came with the higher maintenance costs associated with diesel engines.
Legacy
The 2.0 SkyActiv-G engine, paired with the Skyactiv-Drive transmission, proved to be a reliable powertrain. While not known for blistering performance, it offered a good balance of efficiency and durability. In the used car market, these models are generally well-regarded for their longevity and relatively low maintenance costs. Common issues are typically limited to routine maintenance items such as oil changes, brake pad replacements, and tire rotations. The Skyactiv-Drive transmission has proven to be robust, with few reported failures. The Mazda 3 III Sedan, in general, has established a reputation as a well-built and reliable compact car, contributing to Mazda’s growing brand image for quality and driving enjoyment.
