The 2003 Infiniti G35 marked the debut of Infiniti's highly successful luxury sport sedan and coupe. Built on Nissan's FM (Front Midship) platform, it offered a rear-wheel-drive or all-wheel-drive configuration. Available as a sedan or a coupe, key trims included the base sedan/coupe and various optional packages. New, prices ranged from approximately $28,000 to $33,000. Its popularity stemmed from its powerful V6 engine, athletic handling, and premium features, offering a compelling alternative to European rivals at a more accessible price point.
The Good
The 2003 Infiniti G35 boasts strong performance from its VQ35DE V6, offering an engaging driving experience for emotional buyers. Its sleek design and comfortable interior appeal to those seeking style and daily practicality. Renowned Nissan/Infiniti reliability provides peace of mind, while its excellent value on the used market makes it a smart practical choice, combining luxury, sportiness, and dependability without the premium price tag of its rivals.
The Bad
Potential weaknesses for the 2003 G35 include oil consumption issues, especially in earlier VQ35DE engines, and minor electrical glitches. The interior plastics can show wear, and suspension components like bushings may need replacement over time. Rust can also be a concern in salt-prone climates, particularly around the rear wheel wells. Always check for proper maintenance records.
2003 Infiniti G35: Quick Overview
- Engine Options:
The 2003 Infiniti G35 was exclusively offered with Nissan's renowned 3.5-liter VQ35DE DOHC 24-valve V6 engine. - Horsepower:
Sedan: 260 horsepower at 6,000 rpm and 260 lb-ft of torque at 4,800 rpm.
Coupe: 280 horsepower at 6,200 rpm and 270 lb-ft of torque at 4,800 rpm (for 6-speed manual models); 275 horsepower for automatic coupes. - Fuel Economy (EPA estimates):
Sedan (Automatic RWD): 18 MPG city / 24 MPG highway
Sedan (Manual RWD): 17 MPG city / 24 MPG highway
Coupe (Automatic RWD): 17 MPG city / 24 MPG highway
Coupe (Manual RWD): 17 MPG city / 23 MPG highway
Note: Fuel economy can vary based on driving conditions and transmission. - 0-60 MPH Times:
Sedan (Automatic): Approximately 6.2-6.5 seconds
Coupe (Manual): Approximately 5.4-5.7 seconds
Coupe (Automatic): Approximately 5.8-6.1 seconds
These figures place the G35 squarely in the sport sedan/coupe category, offering brisk acceleration. - Towing Capacity:
The 2003 Infiniti G35 was generally not rated for towing, as it was not designed for such purposes. Owners are typically advised against towing to preserve the vehicle's structural integrity and performance characteristics. - Key Trim-Level Features (Standard and Optional):
G35 Sedan:
Standard features included 17-inch alloy wheels, automatic climate control, a 6-speaker CD audio system, power windows and locks, cruise control, and leather-appointed seating. Available options often included a Premium Package (Bose audio, moonroof, heated seats), Sport-tuned suspension, and navigation system. AWD was an option.
G35 Coupe:
Standard features were more robust, including 17-inch alloy wheels (18-inch for Sport Package), automatic climate control, an 8-speaker Bose audio system with 6-disc CD changer, power seats, and leather upholstery. Optional features mirrored the sedan's Premium and Sport packages, with unique coupe-specific styling enhancements and a standard aluminum trim interior. A 6-speed manual transmission was available for the RWD coupe, alongside the 5-speed automatic.
2003 Infiniti G35 Specifications
Vehicle Information
| Year | 2003 |
| Make | Infiniti |
| Model | G35 |
| Trim | - |
| Style | Sedan Rear-Wheel Drive |
| Type | Sedan |
| Category | Mid-Size Car |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | TOCHIGI |
Dimensions
| Doors | 2-Door |
| Curb Weight | 1552.19 kg |
| Gross Vehicle Weight Rating | 2045.25 kg |
| Overall Height | 139.19 cm |
| Overall Length | 462.79 cm |
| Overall Width | 181.61 cm |
| Wheelbase Length | 284.99 cm |
| Standard Seating | 4 |
Engine & Performance
| Engine | 3.5-L V-6 DOHC 24V |
| Engine Size | 3.5L |
| Engine Cylinders | 6 |
| Transmission | 6-Speed Manual |
| Transmission Type | Manual |
| Transmission Speeds | 6-Speed |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $32,200 USD |
| Invoice Price | $29,157 USD |
| Delivery Charges | $545 USD |
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What Problems Does the 2003 Infiniti G35 Have?
The 2003 Infiniti G35, while generally reliable, has several frequently reported problems and long-term concerns. A prominent issue for the early 2003-2005 VQ35DE engines, particularly those without the revised "rev-up" block, is excessive oil consumption. This is often attributed to piston ring design and can lead to low oil levels if not regularly monitored, potentially causing engine damage. Owners should check oil levels frequently. Another common problem is dashboard cracking, which occurs due to sun exposure and material degradation, a purely cosmetic but widespread flaw.
Suspension components, especially lower control arm bushings and compression rod bushings, tend to wear out over time, leading to clunking noises, uneven tire wear, and degraded handling. Replacement with aftermarket polyurethane bushings is a popular, durable solution. Power window motors can also fail, resulting in slow or inoperable windows, often requiring replacement of the entire motor assembly.
Minor electrical issues can arise, such as problems with the power seat motors, door lock actuators, or malfunctioning gauges, although these are less common than the mechanical issues. The clear coat on the exterior paint, especially on darker colors, can peel or fade over time, reducing the vehicle's aesthetic appeal.
Regarding recalls, the 2003 G35 has had a few notable ones. A significant recall (NHTSA Campaign Number 06V329000) involved the passenger air bag inflator, specifically the Takata recall, which affected numerous vehicles and necessitated replacement of the airbag module due to potential for rupture. Another recall (NHTSA Campaign Number 04V280000) addressed potential issues with the engine control module (ECM) software, which could lead to engine stalling or difficulty starting.
In the long term, diligent maintenance, including regular oil changes, attention to fluid levels, and proactive replacement of worn suspension parts, is crucial for preserving the G35's performance and extending its lifespan. Owners should be aware of these potential issues when considering a used 2003 G35.
Suspension components, especially lower control arm bushings and compression rod bushings, tend to wear out over time, leading to clunking noises, uneven tire wear, and degraded handling. Replacement with aftermarket polyurethane bushings is a popular, durable solution. Power window motors can also fail, resulting in slow or inoperable windows, often requiring replacement of the entire motor assembly.
Minor electrical issues can arise, such as problems with the power seat motors, door lock actuators, or malfunctioning gauges, although these are less common than the mechanical issues. The clear coat on the exterior paint, especially on darker colors, can peel or fade over time, reducing the vehicle's aesthetic appeal.
Regarding recalls, the 2003 G35 has had a few notable ones. A significant recall (NHTSA Campaign Number 06V329000) involved the passenger air bag inflator, specifically the Takata recall, which affected numerous vehicles and necessitated replacement of the airbag module due to potential for rupture. Another recall (NHTSA Campaign Number 04V280000) addressed potential issues with the engine control module (ECM) software, which could lead to engine stalling or difficulty starting.
In the long term, diligent maintenance, including regular oil changes, attention to fluid levels, and proactive replacement of worn suspension parts, is crucial for preserving the G35's performance and extending its lifespan. Owners should be aware of these potential issues when considering a used 2003 G35.
How long will the 2003 Infiniti G35 last?
With proper maintenance, the 2003 Infiniti G35 is known to be a durable vehicle, often reaching well over 150,000 to 200,000 miles. Many owners report their G35s still running strong even past 250,000 miles, equating to 15-20+ years of service. The VQ35DE engine is fundamentally robust, but its longevity heavily depends on consistent oil level checks and timely oil changes due to potential oil consumption issues in early models. Over time, weaknesses include wear and tear on suspension bushings (compression rod, lower control arm), which manifest as clunking noises and can affect handling. Electrical components like window motors might fail, and interior plastics or dashboards can show age with cracks. Rust around the rear wheel arches is also a concern in regions exposed to road salt. Regular preventative maintenance is key to mitigating these age-related issues and ensuring a long service life.
What Technology & Safety Features are Included?
The 2003 Infiniti G35, for its era, offered a respectable array of built-in technology, entertainment, and safety features, blending luxury with functionality. Standard entertainment included a 6-speaker audio system with a CD player in the sedan, while the coupe often featured a more premium 8-speaker Bose audio system with a 6-disc CD changer, offering excellent sound quality. Both body styles came with automatic climate control and power accessories like windows, locks, and mirrors. Optional tech features included a DVD-based navigation system with a pop-up screen, a significant luxury item for the time, and a moonroof.
Driver-assistance features were less prevalent than in modern vehicles, focusing more on fundamental driving aids. These typically included cruise control, power steering, and a basic trip computer. Higher trims and optional packages often added heated front seats, power-adjustable driver's and front passenger's seats, and memory functions for the driver's seat, steering wheel, and exterior mirrors.
On the safety front, the 2003 G35 was equipped with a comprehensive set of features. Standard safety equipment included dual-stage front airbags, front seat-mounted side-impact airbags, and front and rear curtain side-impact airbags. Four-wheel anti-lock brakes (ABS) with electronic brakeforce distribution (EBD) and Brake Assist (BA) were standard, providing strong stopping power. Vehicle Dynamic Control (VDC), Infiniti's electronic stability control system, was also standard on all models, helping drivers maintain control during challenging road conditions. A traction control system further enhanced grip and stability.
Crash-Test Ratings:
The 2003 Infiniti G35 Sedan received favorable crash-test ratings from the Insurance Institute for Highway Safety (IIHS) and the National Highway Traffic Safety Administration (NHTSA).
NHTSA Ratings:
Frontal Driver: 5 Stars
Frontal Passenger: 5 Stars
Side Driver: 5 Stars
Side Rear Passenger: 5 Stars
Rollover: 4 Stars
IIHS Ratings:
Moderate Overlap Front: "Good"
Side Impact (with optional side airbags): "Good"
Head Restraints & Seats: "Good"
These ratings confirm the 2003 G35 as a very safe vehicle for its segment and model year, providing significant occupant protection.
Driver-assistance features were less prevalent than in modern vehicles, focusing more on fundamental driving aids. These typically included cruise control, power steering, and a basic trip computer. Higher trims and optional packages often added heated front seats, power-adjustable driver's and front passenger's seats, and memory functions for the driver's seat, steering wheel, and exterior mirrors.
On the safety front, the 2003 G35 was equipped with a comprehensive set of features. Standard safety equipment included dual-stage front airbags, front seat-mounted side-impact airbags, and front and rear curtain side-impact airbags. Four-wheel anti-lock brakes (ABS) with electronic brakeforce distribution (EBD) and Brake Assist (BA) were standard, providing strong stopping power. Vehicle Dynamic Control (VDC), Infiniti's electronic stability control system, was also standard on all models, helping drivers maintain control during challenging road conditions. A traction control system further enhanced grip and stability.
Crash-Test Ratings:
The 2003 Infiniti G35 Sedan received favorable crash-test ratings from the Insurance Institute for Highway Safety (IIHS) and the National Highway Traffic Safety Administration (NHTSA).
NHTSA Ratings:
Frontal Driver: 5 Stars
Frontal Passenger: 5 Stars
Side Driver: 5 Stars
Side Rear Passenger: 5 Stars
Rollover: 4 Stars
IIHS Ratings:
Moderate Overlap Front: "Good"
Side Impact (with optional side airbags): "Good"
Head Restraints & Seats: "Good"
These ratings confirm the 2003 G35 as a very safe vehicle for its segment and model year, providing significant occupant protection.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2003 Infiniti G35 Prices and Market Value
When new, the 2003 Infiniti G35 Sedan typically ranged from approximately $28,000 to $33,000, while the Coupe was priced from around $30,000 to $35,000, depending on trim and options. Today, used market prices for a 2003 G35 vary significantly based on condition, mileage, and maintenance history, generally ranging from $3,000 for models needing work to $8,000 or more for well-maintained, low-mileage examples, with manual coupes often commanding a premium.
The G35 has experienced substantial depreciation, typical for luxury sport sedans of its age. However, its strong performance, relatively reliable VQ engine, and distinctive styling have allowed it to retain better value than some rivals. Factors affecting its current resale value include documented maintenance records, absence of major rust or dashboard cracks, and the presence of desirable options like the 6-speed manual transmission or Sport package. Models with excessive oil consumption or significant deferred maintenance will naturally fetch lower prices.
The G35 has experienced substantial depreciation, typical for luxury sport sedans of its age. However, its strong performance, relatively reliable VQ engine, and distinctive styling have allowed it to retain better value than some rivals. Factors affecting its current resale value include documented maintenance records, absence of major rust or dashboard cracks, and the presence of desirable options like the 6-speed manual transmission or Sport package. Models with excessive oil consumption or significant deferred maintenance will naturally fetch lower prices.
2003 Infiniti G35 Cost of Ownership
Owning a 2003 Infiniti G35 presents a mixed bag in terms of costs. Insurance can be moderate to high, reflecting its "luxury sport" designation and potent engine. Fuel costs are above average, as the powerful V6 engine demands premium gasoline (recommended) and achieves only 17-18 MPG city. Maintenance and repair costs are generally reasonable for a luxury brand, thanks to its Nissan roots, meaning parts are often accessible. However, specific luxury components or specialized labor can increase repair bills. Long-term, you must budget for common issues like suspension component replacements, potential oil consumption management, and dashboard repairs. Overall, it's a moderately costly vehicle to own compared to an economy car, but offers significant performance and luxury for the investment.
2003 Infiniti G35 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
75.71 liters
City Mileage
8.5 km/l
Highway Mileage
11.48 km/l
2003 Infiniti G35 Safety Rating
NHTSA
IIHS
2003 Infiniti G35 Warranty
Basic
Original warranty
48 months / 60,000 miles
Estimated remaining
Expired
Powertrain
Original warranty
72 months / 70,000 miles
Estimated remaining
Expired
Rust
Original warranty
84 months / unlimited miles
Estimated remaining
Expired
2003 Infiniti G35 Insurance
Insurance for a 2003 Infiniti G35 is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2003 Infiniti G35 Compare to Other Sedan?
The 2003 Infiniti G35 carved out a unique niche, challenging established luxury sport sedans and coupes. Its key rivals included the BMW 3 Series (E46), Mercedes-Benz C-Class, Acura TL, and Audi A4.
Performance: The G35's VQ35DE V6 engine (260-280 hp) offered a significant horsepower advantage over the base BMW 330i (225 hp), C320 (215 hp), and A4 3.0 (220 hp). Only the higher-performance M3 or C32 AMG truly surpassed it, but at a much higher price. The G35 offered spirited acceleration and engaging handling, often praised for its balanced chassis, directly competitive with BMW's driving dynamics. Its RWD platform was a major draw, unlike the FWD-biased Acura TL.
Features: The G35 came well-equipped for its price. While it might not have had the same interior refinement or brand prestige as a BMW or Mercedes, it offered comparable luxury features like leather seats, premium audio (Bose), automatic climate control, and optional navigation. The Acura TL often had a slight edge in standard tech features and interior fit-and-finish, while the Audi A4's interior quality was arguably superior.
Reliability: This is where the G35 often shined. Compared to the E46 BMW 3 Series, which could suffer from cooling system issues, subframe cracks, and electrical gremlins, the G35's mechanicals were generally more robust, despite early model oil consumption. Mercedes and Audi from this era also had their share of electrical and maintenance complexities. The G35 provided a compelling balance of performance and long-term dependability.
Price: The G35's most significant advantage was its pricing. New, it was considerably less expensive than a similarly equipped 3 Series or C-Class, offering luxury sport performance at a more accessible point. This value proposition extends to the used market, where G35s remain significantly more affordable than their German counterparts.
Similar Alternatives:
The 2003 G35 is an excellent "driver's car" that offers a fantastic blend of performance, style, and relative reliability for its class and price point.
Performance: The G35's VQ35DE V6 engine (260-280 hp) offered a significant horsepower advantage over the base BMW 330i (225 hp), C320 (215 hp), and A4 3.0 (220 hp). Only the higher-performance M3 or C32 AMG truly surpassed it, but at a much higher price. The G35 offered spirited acceleration and engaging handling, often praised for its balanced chassis, directly competitive with BMW's driving dynamics. Its RWD platform was a major draw, unlike the FWD-biased Acura TL.
Features: The G35 came well-equipped for its price. While it might not have had the same interior refinement or brand prestige as a BMW or Mercedes, it offered comparable luxury features like leather seats, premium audio (Bose), automatic climate control, and optional navigation. The Acura TL often had a slight edge in standard tech features and interior fit-and-finish, while the Audi A4's interior quality was arguably superior.
Reliability: This is where the G35 often shined. Compared to the E46 BMW 3 Series, which could suffer from cooling system issues, subframe cracks, and electrical gremlins, the G35's mechanicals were generally more robust, despite early model oil consumption. Mercedes and Audi from this era also had their share of electrical and maintenance complexities. The G35 provided a compelling balance of performance and long-term dependability.
Price: The G35's most significant advantage was its pricing. New, it was considerably less expensive than a similarly equipped 3 Series or C-Class, offering luxury sport performance at a more accessible point. This value proposition extends to the used market, where G35s remain significantly more affordable than their German counterparts.
Similar Alternatives:
- Acura TL (2004+): For buyers prioritizing FWD reliability, interior refinement, and a slightly softer ride, the 3rd-gen TL is a strong alternative. It offers similar power but different driving dynamics.
- BMW 330i (E46): If driving purity and ultimate steering feel are paramount, and you're prepared for potentially higher maintenance costs, the E46 330i is a classic choice.
- Lexus IS300: While less powerful (inline-6, ~215 hp), the IS300 offers legendary Lexus reliability and a sporty RWD chassis, albeit with a smaller interior.
The 2003 G35 is an excellent "driver's car" that offers a fantastic blend of performance, style, and relative reliability for its class and price point.
Final Verdict: Is the 2003 Infiniti G35 a Good Sedan?
The 2003 Infiniti G35 is an ideal vehicle for enthusiasts seeking an affordable, engaging luxury sport sedan or coupe that prioritizes driving dynamics and performance. It's perfect for someone who appreciates a powerful V6 engine, RWD handling, and stylish design without the prohibitive cost of its European rivals. It's definitely worth buying on the used market, especially if you're looking for a performance bargain.
However, prospective buyers should look for models with detailed service records. The 6-speed manual coupe is particularly desirable for driving enthusiasts. Be prepared for potentially higher fuel costs (premium gas) and be diligent about checking oil levels due to the early VQ35DE's known oil consumption. If you can find a well-maintained example, the G35 offers an exhilarating and reliable ownership experience for a relatively small investment.
However, prospective buyers should look for models with detailed service records. The 6-speed manual coupe is particularly desirable for driving enthusiasts. Be prepared for potentially higher fuel costs (premium gas) and be diligent about checking oil levels due to the early VQ35DE's known oil consumption. If you can find a well-maintained example, the G35 offers an exhilarating and reliable ownership experience for a relatively small investment.
Drew B
Drew is a seasoned automotive expert and contributor to VinCheck.info. With nearly 15 years of experience as a former Porsche technician, he brings a wealth of hands-on knowledge to his writing. Born in North Carolina, a region renowned for its deep-rooted NASCAR culture, Drew developed a passion for cars early in life, often building and working on vehicles from a young age. At VINCheck, Drew leverages his extensive technical background to provide in-depth analyses of various vehicles. His articles often focus on engine performance, reliability, and maintenance insights, offering readers practical information grounded in real-world experience. Some of his notable contributions include reviews on the Mazda CX-5's longevity and detailed examinations of engine options for models like the 2011 Toyota Camry and Tacoma