The Mazda Millenia, known as the Mazda Icon in some markets, was a front-wheel-drive mid-size sedan produced by Mazda from 1997 to 2003. Representing a significant step upmarket for the brand, the Millenia aimed to compete with established luxury sedans from Honda and Toyota. The 2.5 i V6 24V 4WS variant, introduced in 1997 and continuing through the production run, was the top-of-the-line model, distinguished by its potent 2.5-liter V6 engine, four-wheel steering system, and a focus on refined comfort and performance. This model occupied the premium position within the Millenia lineup, offering a more sophisticated experience than the base 2.3-liter four-cylinder versions.
Technical Specifications
| Brand | Mazda |
| Model | Millenia |
| Generation | Millenia (TA221) |
| Type (Engine) | 2.5 i V6 24V 4WS (200 Hp) |
| Start of production | 1997 |
| End of production | 2003 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 10.31 l/100 km (22.8 US mpg / 27.4 UK mpg / 9.7 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7.5 kg/Hp, 133.3 Hp/tonne |
| Weight-to-torque ratio | 6.7 kg/Nm, 149.3 Nm/tonne |
| Power | 200 Hp @ 6500 rpm |
| Power per litre | 80.1 Hp/l |
| Torque | 224 Nm @ 5500 rpm (165.21 lb.-ft. @ 5500 rpm) |
| Engine layout | Front, Transverse |
| Engine displacement | 2497 cm3 (152.38 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 84.5 mm (3.33 in.) |
| Piston Stroke | 74.2 mm (2.92 in.) |
| Compression ratio | 9.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Kerb Weight | 1500 kg (3306.93 lbs.) |
| Max. weight | 1775 kg (3913.21 lbs.) |
| Max load | 275 kg (606.27 lbs.) |
| Fuel tank capacity | 68 l (17.96 US gal | 14.96 UK gal) |
| Length | 4870 mm (191.73 in.) |
| Width | 1770 mm (69.69 in.) |
| Height | 1395 mm (54.92 in.) |
| Wheelbase | 2745 mm (108.07 in.) |
| Front track | 1520 mm (59.84 in.) |
| Rear track | 1520 mm (59.84 in.) |
| 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 | 4 gears, automatic transmission |
| Front suspension | Coil spring |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 215/55 R16 V |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
The heart of the Millenia 2.5 i V6 was the KJ-ZEM engine, a 2.5-liter (2497 cc) DOHC 24-valve V6. This engine featured a 60-degree V-angle and utilized multi-port fuel injection. The engine produced 200 horsepower at 6500 rpm and 224 Nm (165.21 lb-ft) of torque at 5500 rpm. The engine’s design emphasized smoothness and refinement, characteristics Mazda sought to imbue in the Millenia. The engine block was constructed from cast iron, while the cylinder heads were made of aluminum alloy. The 4-speed automatic transmission was specifically tuned to complement the V6’s power delivery, prioritizing smooth shifts and comfortable cruising. While not a particularly advanced transmission by modern standards, it was reliable and well-suited to the Millenia’s intended market position.
Driving Characteristics
The 2.5 i V6 Automatic Millenia offered a noticeably more refined driving experience compared to the four-cylinder models. Acceleration was brisk, though not overtly sporty. The automatic transmission, while smooth, did exhibit some of the characteristics common to older 4-speed units – occasional hunting for the right gear and a slight delay in downshifts. The four-wheel steering (4WS) system, a key feature of this variant, significantly enhanced low-speed maneuverability, making parking and navigating tight city streets easier. At higher speeds, the 4WS contributed to increased stability during lane changes and cornering. However, some drivers found the 4WS system to feel slightly artificial, particularly during initial acclimation.
Equipment & Trim Levels
The 2.5 i V6 4WS represented the highest trim level of the Millenia. Standard features included leather upholstery, power-adjustable front seats, a premium sound system, automatic climate control, and alloy wheels. The interior was designed with a focus on luxury and comfort, featuring woodgrain trim and a generally upscale aesthetic. Optional extras included a sunroof, upgraded audio systems, and a navigation system (depending on the year and market). The Millenia aimed to provide a near-luxury experience at a more accessible price point than its European and Japanese competitors.
Chassis & Braking
The Millenia utilized a front-engine, front-wheel-drive layout. Suspension consisted of coil springs and independent suspension all around. The front brakes were ventilated discs, providing ample stopping power, while the rear brakes were solid discs. Anti-lock Braking System (ABS) was standard equipment. The chassis was designed to balance ride comfort with handling stability. The steering was a rack-and-pinion system with hydraulic power assistance, offering a reasonably responsive feel.
Market Reception & Comparison
The Mazda Millenia 2.5 i V6 4WS was generally well-received by automotive critics. It was praised for its smooth engine, comfortable ride, and upscale interior. The 4WS system was a talking point, with some reviewers appreciating its benefits and others finding it unnecessary. Compared to the base 2.3-liter models, the V6 offered a significant performance upgrade and a more refined driving experience. Fuel economy, however, was noticeably lower with the V6 engine. Reliability was generally good, although some owners reported issues with the automatic transmission over the long term. Compared to competitors like the Honda Accord and Toyota Camry, the Millenia offered a more distinctive design and a slightly more engaging driving experience, but lacked the established reputation for bulletproof reliability of its rivals.
Legacy
The Mazda Millenia, while not a massive sales success, remains a fondly remembered vehicle among enthusiasts. The 2.5 i V6 4WS variant, in particular, is sought after for its unique combination of performance, luxury, and technology. Today, well-maintained examples are becoming increasingly rare. The KJ-ZEM V6 engine is generally considered a durable unit, although preventative maintenance is crucial. The automatic transmission can be a potential weak point, and finding replacement parts can be challenging. The Millenia represents a bold attempt by Mazda to move upmarket and establish itself as a premium brand, and the 2.5 i V6 4WS stands as the most ambitious and well-equipped expression of that vision.
