Is the 2004 Infiniti G35 a bad year?
244 owner complaints to NHTSA. Engine complaints: 62, 3.4× a quiet G35 year.
Keep it, but watch the engine
The engine draws 3.4× the complaints of a quiet G35 year, spread over 48k–119k miles, so there's no single mileage to plan around.
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2004 G35 owners report, by mileage
Each system owners named in five or more complaints, with the mileage range where the middle half of those complaints were filed. Read at 90,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| EngineSTANDS OUT | 62 (25%) | 48k–119k miles · around this mileage | Valve cover gasket replacement $110–$500 · Timing chain replacement $1,000–$4,000 |
| Electrical systemSTANDS OUT | 41 (17%) | 70k–114k miles · around this mileage | 12-volt battery replacement $100–$400 · Starter motor replacement $350–$1,200 |
| Exterior lightingSTANDS OUT | 41 (17%) | 54k–109k miles · around this mileage | — |
| Air bags | 22 (9%) | 62k–114k miles · around this mileage | — |
| Speed control | 20 (8%) | 11k–103k miles · around this mileage | — |
| Fuel system | 19 (8%) | 57k–138k miles · around this mileage | Fuel pump replacement $220–$1,500 · Fuel injector replacement (one injector) $300–$1,200 |
| Equipment | 13 (5%) | 65k–107k miles · around this mileage | — |
| Visibility and wipers | 7 (3%) | 78k–111k miles · around this mileage | — |
| Brakes | 34 (14%) | 17k–81k miles · mostly behind | — |
| Transmission and drivetrain | 21 (9%) | 10k–86k miles · mostly behind | — |
| Seats | 14 (6%) | 47k–87k miles · mostly behind | — |
| Stability control | 8 (3%) | too few with a mileage | — |
| Body structure | 7 (3%) | too few with a mileage | — |
| Steering | 7 (3%) | too few with a mileage | — |
Bills are typical US ranges from the sources named in the tool (J.D. Power, Kelley Blue Book, CarParts.com and others), printed only for systems that stand out or sit at or ahead of 90,000 miles. Not a quote.
What owners reported alongside their complaints
Of 244 complaints: 17 mention a crash · 5 mention a fire · 8 report an injury · 2 say the car was towed.
No complaints in the last 12 months; the newest was filed in Aug 2024.
Counts of what owners wrote in their complaints, not verified by anyone.
In owners' own words
I was driving normally through town at 30 MPH when the engine just stopped and all the dash warning lights came on.
First, on 07/28/2012, at about 60 MPH while driving on the freeway, notice the vehicle's engine sort of stalled (Saw the tachometer drop completely) for 1 second and resume operation.
As previously mentioned and depicted copious times on multiple sites, my 2004 G35 (Built in 2003 and purchased 11/03 w/ only 43,544 miles) stalls w/o warning.
Unedited excerpts from complaints filed with NHTSA, chosen by mileage (nearest 90,000 miles), not by content. Unverified.
Recalls for the 2004 Infiniti G35: 3
These service parts are intended for use on model year 2003-2006 Nissan 350Z and Infiniti G35 vehicles. The sx: K70358-01 clutch kit contains an oversized clutch disc. An oversized clutch disc could cause the vehicle to move unintentionally on the initial start-up, if the driver does not follow the installation instructions and fails to use the service brakes while the hand brake is not applied.
Certain aai motorsports combination lamps sold as replacement lamps for use on the above list passenger vehicles. Combination lamps not equipped with amber side reflectors fail to conform with the requirements of federal motor vehicle safety standard no. 108, "Lamps, reflective devices, and associated equipment." Lack of amber side reflectors in the lamps will decrease lighting visibility to other drivers and may possibly result in a vehicle crash
On certain passenger and sport utility vehicles, the fuel filler hose may crack and result in fuel leakage from the hose while refueling. Fuel leakage in the presence of an ignition source could result in a fire.
A recall may cover only some cars of a model year; the campaign size counts every model and year it lists. Enter your VIN at nhtsa.gov/recalls: dealers fix open recalls free.
Service bulletins from Infiniti: 44
Repair instructions Infiniti sent its dealers for symptoms seen in the shop on the 2004 Infiniti G35. Ask a dealer or mechanic for a bulletin by its number.
OBD II EVAP Tube Warranty Enhancement UPDATE August 17, 2018
Replacement 5-speed rear wheel drive Automatic Transmission (A/T) assemblies and replacement control valves…
5 speed a/t DTC diagnoses for P1701, P1702, P1703, P1704, P1705, P1754, P1759, P1764, P1769, P1774
Intelligent key not detected / engine will not start
Neighbouring years
2003 G35: 531 complaints, keep it, but watch the engine · 2005 G35: 215 complaints, keep it, but watch the engine.
Every Infiniti G35 year
2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 · All G35 years side by side
Other Infiniti models: Infiniti FX35 · Infiniti G37 · Infiniti I35 · Infiniti JX35 · Infiniti M35 · Infiniti M45 · Infiniti Q50 · Infiniti QX4 · Infiniti QX50 · Infiniti QX56 · Infiniti QX60. All makes and models.
Questions
Is the 2004 Infiniti G35 a bad year?
244 owner complaints to NHTSA. Engine complaints: 62, 3.4× a quiet G35 year. At 90,000 miles the tool says: Keep it, but watch the engine. The engine draws 3.4× the complaints of a quiet G35 year, spread over 48k–119k miles, so there's no single mileage to plan around.
What are the most common problems with the 2004 Infiniti G35?
By owner complaints to NHTSA: engine (62), electrical system (41), exterior lighting (41), air bags (22), speed control (20). Half of the engine complaints were filed between 48k–119k miles.
How many recalls does the 2004 Infiniti G35 have?
3 recall campaigns list this model year: Transmission and drivetrain (NHTSA 11E024000), Exterior lighting (NHTSA 06E060000), Fuel system (NHTSA 05V-555). A recall may cover only some cars; check by VIN at nhtsa.gov/recalls.
Method: counts of unverified owner complaints filed with NHTSA, compared only with other years of the same model (sales volumes are unknown, so no failure rate is computed). A system stands out at 40+ complaints and at least twice the model's quiet (lower-quartile) year, or twice the share across every vehicle of that model year. The mileage range is the 25th to 75th percentile of the mileages owners reported. Data received by NHTSA through November 5, 2026. Repair prices are typical US ranges from named sources, not quotes. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Check this car at your own mileage.