The Mazda 3 III Sedan (BM) 2.5 SkyActiv-G, producing 184 horsepower, represents a significant iteration in Mazda’s compact car lineage. Introduced in July 2014 and continuing through 2016, this variant occupied a mid-to-upper position within the third-generation (BM) Mazda 3 lineup. Built on the 1HX0 platform, it aimed to deliver a blend of sporty handling, fuel efficiency, and refined styling, appealing to buyers seeking a more engaging driving experience than typically found in the compact sedan segment. This model was primarily targeted towards the North American and European markets, where Mazda sought to establish a stronger presence with vehicles emphasizing driving dynamics.
Technical Specifications
| Brand | Mazda |
| Model | 3 |
| Generation | 3 III Sedan (BM) |
| Type (Engine) | 2.5 SkyActiv-G (184 Hp) |
| Start of production | July, 2014 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban (EPA) | 9.4 l/100 km (25 US mpg, 30.1 UK mpg, 10.6 km/l) |
| Fuel consumption (economy) – extra urban (EPA) | 6.4 l/100 km (36.8 US mpg, 44.1 UK mpg, 15.6 km/l) |
| Fuel consumption (economy) – combined (EPA) | 8.1 l/100 km (29 US mpg, 34.9 UK mpg, 12.3 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 210 km/h (130.49 mph) – Electronically limited |
| Emission standard | ULEV |
| Weight-to-power ratio | 7.3 kg/Hp, 137.6 Hp/tonne |
| Weight-to-torque ratio | 5.3 kg/Nm, 187.7 Nm/tonne |
| Power | 184 Hp @ 5700 rpm |
| Power per litre | 74 Hp/l |
| Torque | 251 Nm @ 3250 rpm (185.13 lb.-ft. @ 3250 rpm) |
| Maximum engine speed | 6500 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | PY-VPS |
| Engine displacement | 2488 cm3 (151.83 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 89 mm (3.5 in.) |
| Piston Stroke | 100 mm (3.94 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 | 4.5 l (4.76 US qt | 3.96 UK qt) |
| Coolant | 6.8 l (7.19 US qt | 5.98 UK qt) |
| Kerb Weight | 1337 kg (2947.58 lbs.) |
| Max. weight | 1815 kg (4001.39 lbs.) |
| Max load | 478 kg (1053.81 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 | 1795 mm (70.67 in.) |
| Height | 1455 mm (57.28 in.) |
| Wheelbase | 2700 mm (106.3 in.) |
| Front track | 1555 mm (61.22 in.) |
| Rear (Back) track | 1560 mm (61.42 in.) |
| Ride height (ground clearance) | 155 mm (6.1 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 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 | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs, 295 mm |
| Rear brakes | Disc, 265 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 215/45 R18 |
| Wheel rims size | 7J x 18 |
Powertrain & Engine Architecture
At the heart of the Mazda 3 2.5 SkyActiv-G lies the PY-VPS engine, a 2.5-liter inline-four cylinder gasoline engine. This engine is a cornerstone of Mazda’s SkyActiv technology, designed to maximize combustion efficiency and reduce emissions. Key features include a high compression ratio of 13:1, achieved through careful engine design and precise fuel injection. The engine utilizes direct injection, delivering fuel directly into the combustion chamber for improved fuel atomization and more complete combustion. The valvetrain employs a dual overhead camshaft (DOHC) configuration with variable valve timing (VVT) on both intake and exhaust valves, optimizing engine performance across the rev range. The 6-speed manual transmission was standard, providing drivers with precise control over the engine’s power delivery.
Driving Characteristics
The 184 hp and 185 lb-ft of torque offered by the 2.5-liter SkyActiv-G engine provided a noticeable step up in performance compared to the lower-displacement engines available in the Mazda 3 lineup. While not a high-performance variant, the 2.5L engine delivered brisk acceleration and ample power for everyday driving and highway merging. The 6-speed manual transmission allowed for engaging gear changes and helped to keep the engine in its optimal power band. The gear ratios were well-matched to the engine’s characteristics, providing good responsiveness in most driving situations. Compared to the 2.0-liter engine, the 2.5L offered a more relaxed driving experience, requiring less frequent downshifting.
Equipment & Trim Levels
The 2.5 SkyActiv-G trim typically included features such as alloy wheels, a rear spoiler, and a more comprehensive infotainment system compared to the base models. Interior appointments included cloth upholstery as standard, with available upgrades to leather. Standard equipment also included power windows, power locks, air conditioning, and a basic audio system. Optional extras included a sunroof, navigation system, premium sound system, and advanced safety features like blind-spot monitoring and lane departure warning. The trim level often sat between the ‘i’ (base) and ‘s’ (sport) trims, offering a balance of features and performance.
Chassis & Braking
The Mazda 3 III Sedan featured an independent suspension system at all four wheels. The front suspension utilized a McPherson strut design with coil springs and an anti-roll bar, while the rear suspension employed a multi-link setup with a stabilizer bar. This suspension configuration provided a good balance of ride comfort and handling precision. Braking duties were handled by ventilated discs at the front and solid discs at the rear. The braking system was equipped with ABS (Anti-lock Braking System) as standard, enhancing safety and control during emergency braking situations.
Market Reception & Comparison
The Mazda 3 2.5 SkyActiv-G was generally well-received by automotive critics. Reviewers praised its responsive handling, refined interior, and fuel-efficient engine. Compared to competitors like the Honda Civic and Toyota Corolla, the Mazda 3 was often lauded for its more engaging driving dynamics. Fuel economy figures were competitive, averaging around 29 mpg in combined driving. Reliability was generally good, although some owners reported minor issues with the infotainment system. The 2.5L engine offered a compelling alternative to the more economical, but less powerful, 2.0-liter engine, appealing to drivers who prioritized performance and driving enjoyment.
Legacy
The PY-VPS 2.5-liter SkyActiv-G engine has proven to be a durable and reliable powertrain. In the used car market, Mazda 3 models equipped with this engine are generally sought after for their performance and fuel efficiency. While routine maintenance is essential, the engine is known for its longevity and relatively low running costs. The SkyActiv technology introduced with this engine generation has become a hallmark of Mazda’s engineering philosophy, influencing subsequent models and solidifying the brand’s reputation for building cars that are fun to drive.
