The Nissan Maxima QX VI (A34) 3.5i V6 24V Automatic, produced from 2004 to May 2008, represented a significant iteration of Nissan’s flagship sedan. This variant occupied a premium position within the A34 Maxima lineup, offering a blend of performance and comfort aimed at buyers seeking a refined driving experience. It was primarily marketed in North America, where the Maxima had established a strong reputation as a sporty, yet practical, four-door sedan. The A34 generation, built on the D platform, aimed to elevate the Maxima’s status further with improved styling, technology, and a more powerful engine.
Technical Specifications
| Brand | Nissan |
| Model | Maxima |
| Generation | Maxima QX VI (A34) |
| Type (Engine) | 3.5 i V6 24V (268 Hp) Automatic |
| Start of production | 2004 |
| End of production | May, 2008 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 11.8 l/100 km (19.9 US mpg) |
| Fuel consumption (extra urban) | 8.4 l/100 km (28 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 6 kg/Hp, 166.5 Hp/tonne |
| Weight-to-torque ratio | 4.7 kg/Nm, 214.3 Nm/tonne |
| Power | 268 Hp @ 6000 rpm |
| Power per litre | 76.6 Hp/l |
| Torque | 345 Nm @ 4800 rpm (254.46 lb.-ft. @ 4800 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | VQ35DE |
| Engine displacement | 3498 cm3 (213.46 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 95.5 mm (3.76 in.) |
| Piston Stroke | 81.4 mm (3.2 in.) |
| Compression ratio | 10.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 4.2 l (4.44 US qt | 3.7 UK qt) |
| Coolant capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 1610 kg (3549.44 lbs.) |
| Max. weight | 2062 kg (4545.93 lbs.) |
| Max load | 452 kg (996.49 lbs.) |
| Fuel tank capacity | 76 l (20.08 US gal | 16.72 UK gal) |
| 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 | 5 gears, automatic transmission |
| Front suspension | Wishbone |
| Rear suspension | Spring Strut |
| 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 | 225/55 R17 |
| Wheel rims size | 17 |
Powertrain & Engine Architecture
The heart of the Maxima 3.5i was the VQ35DE 3.5-liter V6 engine. This engine, a member of Nissan’s highly regarded VQ family, was known for its smooth operation, robust construction, and impressive power output. The VQ35DE featured a 60-degree V-angle, aluminum alloy block and cylinder heads, and dual overhead camshafts (DOHC) with four valves per cylinder. The multi-port fuel injection system delivered fuel directly into each intake port, optimizing combustion efficiency. The engine produced 268 horsepower at 6000 rpm and 254 lb-ft of torque at 4800 rpm. This power was channeled through a five-speed automatic transmission, offering smooth and responsive shifts. The transmission was calibrated for a balance of fuel efficiency and performance, with gear ratios designed to maximize acceleration and highway cruising.
Driving Characteristics
The 3.5i Automatic Maxima delivered a comfortable and capable driving experience. While not as overtly sporty as versions equipped with a manual transmission, the automatic provided effortless acceleration and smooth cruising. The five-speed automatic transmission offered adequate gear spacing, allowing the engine to stay within its optimal power band during most driving situations. The torque converter provided smooth launches, but some drivers noted a slight loss of responsiveness compared to a manual gearbox. The steering was precise and well-weighted, providing good feedback to the driver. The suspension, tuned for comfort, absorbed bumps and irregularities in the road effectively, resulting in a refined ride quality.
Equipment & Trim Levels
The 3.5i Automatic trim typically included a generous array of standard features. These commonly included leather upholstery, power-adjustable front seats, a premium Bose audio system, automatic climate control, and power windows and locks. Alloy wheels were standard, as were features like a sunroof and keyless entry. Optional extras often included a navigation system, upgraded interior trim, and a rear spoiler. The Maxima aimed for a luxurious feel, with a well-appointed interior and a focus on comfort and convenience.
Chassis & Braking
The A34 Maxima utilized a front-engine, front-wheel-drive layout. The front suspension employed an independent wishbone design, while the rear suspension featured a multi-link setup. This configuration provided a good balance of handling and ride comfort. Braking duties were handled by ventilated disc brakes at the front and solid disc brakes at the rear. Anti-lock braking system (ABS) was standard, enhancing safety and control during emergency braking situations. The steering system was a rack-and-pinion setup with hydraulic power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The Maxima 3.5i Automatic was generally well-received by automotive critics. It was praised for its powerful engine, comfortable ride, and well-equipped interior. However, some reviewers noted that the automatic transmission dulled the driving experience compared to the available six-speed manual. Compared to other trims, such as the base 2.5S model, the 3.5i offered a significant performance upgrade. Fuel economy was comparable to other V6-powered sedans in its class, averaging around 19 mpg city and 28 mpg highway. Reliability was generally good, although some owners reported minor issues with the automatic transmission over the long term.
Legacy
The Nissan Maxima A34 3.5i V6 Automatic remains a popular choice in the used car market. The VQ35DE engine is known for its durability and longevity, and with proper maintenance, can provide many years of reliable service. While not a collector’s item, well-maintained examples of this Maxima are sought after by enthusiasts who appreciate its blend of performance, comfort, and value. The A34 generation solidified the Maxima’s reputation as a capable and refined sedan, and the 3.5i variant represents a sweet spot in the lineup, offering a compelling combination of power and features.
