Hey guys! Let's dive into the stylish and powerful 2004 Infiniti G35 automatic coupe. This car was quite the head-turner back in its day, blending sporty performance with a touch of luxury. But like any vehicle, especially one from the early 2000s, it comes with its own set of quirks and potential headaches. We'll explore everything from its performance and design to the common issues you might encounter. So, buckle up, and let's get started!

Overview of the 2004 Infiniti G35 Automatic Coupe

The 2004 Infiniti G35 automatic coupe represents a sweet spot in automotive design, offering a blend of performance, style, and relative affordability. When it hit the market, it quickly became a favorite among enthusiasts who wanted a sporty ride without sacrificing comfort and luxury. The G35 was part of Infiniti's strategy to compete directly with established players like BMW and Mercedes-Benz, and it did a pretty good job, carving out a niche for itself with its unique character and impressive driving dynamics. The car is powered by the VQ35DE engine, a 3.5-liter V6 that delivers a punchy performance. In the 2004 model, this engine produces around 280 horsepower, giving the G35 plenty of pep for both city driving and highway cruising. The automatic transmission, while not as engaging as the manual, provides smooth and reliable shifts, making it a comfortable daily driver. The exterior design of the G35 coupe is sleek and aggressive, featuring a long hood, a sloping roofline, and distinctive headlights and taillights. Inside, the cabin is well-appointed with comfortable seats, quality materials, and a user-friendly layout. Standard features include things like automatic climate control, power windows and locks, and a decent sound system. Overall, the 2004 Infiniti G35 automatic coupe is a well-rounded package that offers a lot of value for the money. It's a car that's fun to drive, stylish to look at, and comfortable to be in, making it a great choice for anyone looking for a sporty and luxurious coupe.

Common Problems with the 2004 Infiniti G35 Automatic Coupe

Alright, let's talk about the not-so-fun stuff. Even though the 2004 Infiniti G35 is a solid car, it's not without its problems. Knowing these issues can help you make a smart decision if you're considering buying one, or help you maintain yours if you already own one. So, what are the common culprits? One of the most frequently reported issues is related to the engine. The VQ35DE, while generally reliable, can suffer from oil consumption. This means you might find yourself adding oil more often than you'd expect. Keep an eye on your oil levels and watch out for any signs of burning oil, like blue smoke from the exhaust. Another common problem is with the automatic transmission. Some owners have reported issues like slipping gears or rough shifting. Regular maintenance, such as fluid changes, can help prevent these problems, but be prepared for potential repairs down the line. The suspension components, especially the bushings and ball joints, are also known to wear out over time. This can lead to a noisy ride and affect the car's handling. Listen for clunking or squeaking noises when going over bumps, and have your suspension checked regularly. The electrical system can also be a source of headaches. Issues like malfunctioning sensors, problems with the stereo system, and even battery drain are not uncommon. Make sure to check all the electrical components and address any issues promptly to avoid further complications. Finally, rust can be a problem, especially in areas with harsh winters. Check the undercarriage, wheel wells, and other vulnerable spots for signs of rust. Addressing rust early can prevent it from spreading and causing more serious damage.

Engine and Transmission Issues

When it comes to the 2004 Infiniti G35 automatic coupe, the engine and transmission are two of the most critical components that can experience issues over time. The VQ35DE engine, while renowned for its performance and reliability, is not immune to problems. One of the most common concerns is oil consumption. This issue can manifest in a few different ways. Some owners notice that they need to add oil more frequently between oil changes, while others might see blue smoke coming from the exhaust, indicating that oil is being burned in the cylinders. The root cause of oil consumption can vary, but it often involves worn piston rings or valve seals. Regular oil changes with high-quality oil can help mitigate this issue, but in severe cases, more extensive repairs may be necessary. In addition to oil consumption, the VQ35DE engine can also suffer from issues like timing chain problems and sensor failures. The timing chain, responsible for synchronizing the engine's valves and pistons, can stretch or wear out over time, leading to performance issues and potential engine damage. Similarly, sensors like the mass airflow sensor (MAF) and oxygen sensors can fail, causing the engine to run poorly and trigger the check engine light. On the transmission front, the automatic transmission in the 2004 G35 can also experience its fair share of problems. Some owners have reported issues like slipping gears, rough shifting, and even complete transmission failure. These problems can be caused by a variety of factors, including worn clutches, damaged gears, and low transmission fluid. Regular transmission fluid changes are essential for maintaining the health of the transmission, but even with proper maintenance, problems can still occur. If you notice any signs of transmission trouble, it's important to have it checked out by a qualified mechanic as soon as possible to prevent further damage.

Suspension and Brake Problems

The suspension and brake systems are crucial for the safety and handling of any vehicle, and the 2004 Infiniti G35 automatic coupe is no exception. Over time, these components can wear out and develop problems, affecting the car's ride quality and braking performance. Let's start with the suspension. The G35's suspension system consists of various components, including shocks, struts, springs, bushings, and ball joints. These parts work together to absorb bumps and vibrations, providing a smooth and comfortable ride. However, over time, these components can wear out, leading to a variety of issues. Worn bushings, for example, can cause a noisy ride, with clunking or squeaking sounds coming from the suspension when going over bumps. Worn shocks and struts can result in a bouncy or unstable ride, while worn ball joints can affect the car's steering and handling. Regular inspections and maintenance of the suspension system are essential for identifying and addressing these issues before they become more serious. When it comes to the brakes, the 2004 G35 is equipped with disc brakes on all four wheels, providing ample stopping power. However, like any brake system, the G35's brakes can experience problems over time. One common issue is worn brake pads. Brake pads are designed to wear down as they're used, and eventually, they'll need to be replaced. Signs of worn brake pads include squealing or grinding noises when braking, as well as reduced braking performance. Another potential problem is warped brake rotors. Brake rotors can warp due to excessive heat, causing the brakes to vibrate or pulsate when applied. In addition to these issues, the G35's brake system can also suffer from problems like leaks in the brake lines, a malfunctioning master cylinder, and a faulty anti-lock braking system (ABS). Regular brake inspections and maintenance, including brake pad replacements, rotor resurfacing or replacement, and brake fluid flushes, are essential for keeping the brake system in good working order.

Interior and Electrical Issues

The interior of the 2004 Infiniti G35 automatic coupe was designed to provide a comfortable and luxurious driving experience, but like any car, it can develop issues over time. Similarly, the electrical system, which powers everything from the lights to the stereo, can also experience problems. Let's start with the interior. One common issue is wear and tear on the seats. The leather or cloth upholstery can crack, fade, or tear over time, especially in areas that see a lot of use. Regular cleaning and conditioning can help prolong the life of the upholstery, but eventually, it may need to be repaired or replaced. Another potential problem is with the interior trim. The plastic or wood trim pieces can become scratched, faded, or broken, detracting from the overall appearance of the cabin. Replacing these trim pieces can be a relatively simple and inexpensive way to refresh the interior. In addition to these cosmetic issues, the G35's interior can also suffer from functional problems. For example, the power windows and door locks can malfunction, the climate control system can stop working, and the stereo system can develop issues. These problems can be caused by a variety of factors, including worn switches, faulty motors, and damaged wiring. Moving on to the electrical system, the 2004 G35 is equipped with a complex network of wires, sensors, and modules that control various functions throughout the car. Over time, these components can fail, leading to a variety of electrical problems. One common issue is battery drain. A faulty alternator, a parasitic draw, or a bad battery can all cause the battery to drain, leaving you stranded with a dead car. Another potential problem is with the sensors. Sensors like the mass airflow sensor (MAF), oxygen sensors, and crankshaft position sensor can fail, causing the engine to run poorly and trigger the check engine light. In addition to these issues, the G35's electrical system can also suffer from problems like blown fuses, damaged wiring, and a malfunctioning ECU (engine control unit). Regular electrical system inspections and maintenance, including battery testing, alternator testing, and sensor diagnostics, are essential for keeping the electrical system in good working order.

Body and Exterior Problems

The body and exterior of the 2004 Infiniti G35 automatic coupe are what give it its distinctive and stylish appearance. However, over time, the body and exterior can suffer from various problems, especially in areas with harsh weather conditions. One of the most common issues is rust. Rust can form on the body panels, undercarriage, and other metal components, especially in areas that are exposed to salt, moisture, and road debris. Regular washing and waxing can help protect the body from rust, but eventually, it may start to form, especially in areas like the wheel wells, rocker panels, and around the edges of the doors and hood. Addressing rust early is essential for preventing it from spreading and causing more serious damage. Another potential problem is paint damage. The paint on the G35 can fade, chip, or peel over time, especially if it's not properly maintained. Exposure to sunlight, harsh chemicals, and abrasive materials can all damage the paint. Regular washing and waxing can help protect the paint, but eventually, it may need to be touched up or repainted. In addition to these issues, the G35's body and exterior can also suffer from problems like dents, scratches, and broken trim pieces. Dents and scratches can be caused by minor accidents, road debris, or vandalism. Broken trim pieces, such as the side mirrors, bumpers, and grille, can be damaged by impacts or simply wear out over time. Repairing or replacing these damaged components can help restore the G35's appearance and protect the underlying body panels. Regular inspections of the body and exterior are essential for identifying and addressing these issues before they become more serious.

Tips for Maintaining Your 2004 Infiniti G35 Automatic Coupe

Maintaining a 2004 Infiniti G35 automatic coupe requires a proactive approach to ensure its longevity and reliability. Regular maintenance can help prevent many of the common problems associated with this vehicle and keep it running smoothly for years to come. Here are some essential tips for maintaining your G35. Follow the recommended maintenance schedule outlined in the owner's manual. This includes regular oil changes, filter replacements, fluid flushes, and inspections of various components. Adhering to this schedule will help keep your G35 in good working order and prevent potential problems. Use high-quality fluids and parts. When it comes to oil, transmission fluid, coolant, and other fluids, it's important to use the recommended type and grade. Similarly, when replacing parts, opt for OEM (original equipment manufacturer) or reputable aftermarket brands. Keeping an eye on fluid levels, regularly check the oil, coolant, brake fluid, power steering fluid, and transmission fluid levels. Low fluid levels can indicate a leak or other problem that needs to be addressed. Inspect the tires regularly for wear and tear. Check the tire pressure and tread depth, and rotate the tires as recommended. Worn tires can affect the car's handling and braking performance, so it's important to replace them when necessary. Pay attention to any warning signs or symptoms. If you notice any unusual noises, vibrations, or smells, or if the check engine light comes on, don't ignore it. Have the problem diagnosed and repaired as soon as possible to prevent further damage. Keep the car clean. Regular washing and waxing can help protect the body from rust and paint damage. Clean the interior regularly to prevent wear and tear on the upholstery and trim. Store the car properly. If you're not going to be driving the car for an extended period of time, store it in a garage or under a car cover to protect it from the elements. Disconnect the battery to prevent it from draining. By following these maintenance tips, you can help keep your 2004 Infiniti G35 automatic coupe in good working order and enjoy it for many years to come.