Reliability
Infiniti

Q70 (2004)

2004 · Midsize Sedan · 2 engines
81 NHTSA Complaints
5 Recalls
0 Fire Reports
0 Crash Reports
Data covers 4 NHTSA model names
I30I35MM45
View all 7 generations of the Infiniti Q70 → Inspection checklist

Reliability Score

4.2 / 10

Reliability score

More owner complaints than similar midsize sedans

The class average is 7.0. Based on complaints owners filed with NHTSA about the engine, transmission or drivetrain.

Owners filed 49 powertrain complaints. A typical midsize sedan fleet of this size and age would have drawn about 16.

Scores this low have often eased: the three years after looked about 1.5 points better in the typical case.

Breakdown
Complaints overall49 complaints against about 16 for similar vehicles
4.2
Last three years
n/aNot enough data
Engine, transmission or drive unit failed or replaced
n/aNot enough data
Oil consumption, fuel in the oil or overheating
n/aNot enough data

Each line scores one view of the same complaints the same way, so the lines overlap. The mark on each bar is the class average. A line needs 20 expected complaints to show a number.

Similar vehicles are others in the same class, compared at the same age and in the same years. The score counts complaints owners filed with NHTSA, per vehicle built, which is different from the share of vehicles that fail. How the score is worked out

On the record

No serious powertrain recall covering 5% or more of this generation and no escalated investigation in NHTSA's files. Warranty extensions and settlements have not been researched.

Complaints by Engine Code

Show 1 additional engine variant with limited data
These engines appear in fewer than 10 owner complaints. A low count can mean a clean record, and it can also be a VIN-decode anomaly in NHTSA's data.

Infiniti Q70 Unidentified Engine

8 complaints 8.0 per year
View details

Complaint Breakdown

other
3
engine
1
suspension
1
brakes
1
interior
1

Owner Complaints by System

Complaints owners filed with NHTSA about the Infiniti Q70, counted across every engine. A complaint can name more than one system.

Fuel System: 33 owner complaints
Engine: 18 owner complaints
Safety Systems: 15 owner complaints
Electrical System: 10 owner complaints

What to check on a used 2004 Infiniti Q70

On a used 2004 Infiniti Q70, the systems with the most NHTSA owner complaints are the fuel system (33), the engine (18) and the airbags and driver-assist systems (15). Each one has an inspection step below, with counts as of 2026-10-12. A complaint is an owner report, not a confirmed defect, and counts rise with sales.

  1. Let the engine idle for five minutes, walk around the car and smell for fuel.Safety. NHTSA has 33 owner complaints on the 2004 Infiniti Q70 about the fuel system, all engines combined.
  2. Start the engine cold and listen for the first 30 seconds, then again at idle once it is warm.Costly repair. NHTSA has 18 owner complaints on the 2004 Infiniti Q70 about the engine, all engines combined.
  3. Switch the ignition on and watch the airbag light. On the drive, check the backup camera and any collision or lane warning.Safety. NHTSA has 15 owner complaints on the 2004 Infiniti Q70 about the airbags and driver-assist systems.
  4. Switch on every electrical item in turn: lights, windows, locks, wipers, climate fan, screen and power outlets.Costly repair. NHTSA has 10 owner complaints on the 2004 Infiniti Q70 about the electrical system.
  5. Drive over a speed bump and a rough patch at 15 to 20 mph with the radio off.Safety. NHTSA has 1 owner complaint on the 2004 Infiniti Q70 about the suspension.
Open the full inspection checklist for the 2004 Infiniti Q70

Recalls (5)

20V008000Jan 9, 2020critical
Air Bags

Nissan North America, Inc. (Nissan) is recalling certain 2001-2003 Maxima, 2002-2006 Sentra, 2002-2004 Pathfinder, 2007-2011 Versa Sedan and Versa Hatchback, 2001-2004 Infiniti I30 and I35, 2002-2003 Inifiniti QX4, 2003-2008 Infiniti FX35 and FX45 and 2006-2010 M35 and M45 vehicles. The vehicles are equipped with non-desiccated, frontal passenger air bag inflators containing phase stabilized ammonium nitrate (PSAN) propellant that were used as interim remedy parts for previous Takata recalls. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.

16V349000May 24, 2016critical
Air Bags

Nissan North America, Inc. (Nissan) is recalling certain model year 2003-2008 Infiniti FX35 and FX45, 2003-2004 Infiniti I35, 2006-2010 Infiniti M35 and M45, and 2007-2011 Nissan Versa vehicles, originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above, Nissan is recalling certain model year 2005-2008 Infiniti FX35 and FX45, 2003-2004 Infiniti I35, 2006-2008 Infiniti M35 and M45, and 2007-2008 Nissan Versa vehicles, originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Lastly, unless included in "Zone A" or "Zone B" above, Nissan is recalling certain model year 2003-2004 Infiniti I35 vehicles originally sold, or registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. These inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

15V226000Apr 17, 2015critical
Air Bags

Nissan North America, Inc. (Nissan) is recalling certain model year 2003-2004 Infiniti I35, 2003-2005 FX35 and FX45, and 2006 M35 and M45 vehicles originally sold, or currently registered, in geographic locations associated with high absolute humidity. Specifically, vehicles sold, or ever registered, in Florida, Hawaii, Puerto Rico, the U.S. Virgin Islands, Saipan, Guam, and American Samoa, as well as Alabama, Mississippi, Louisiana, Texas, and Georgia, are included. Upon deployment of the passenger side frontal air bag, excessive internal pressure may cause the inflator to rupture.

12V088000Mar 6, 2012serious
Fuel System

NISSAN IS RECALLING CERTAIN MODEL YEAR 2003-2004 INFINITI M45 VEHICLES MANUFACTURED FROM MARCH 7, 2002, THROUGH JUNE 3, 2004. DUE TO A CIRCUIT BOARD FAILURE, THE FUEL GAUGE MAY READ A FUEL LEVEL HIGHER THAN ACTUALLY EXISTS. AS A RESULT, THE VEHICLE MAY RUN OUT OF GAS WITHOUT NOTICE.

04V497000Oct 13, 2004serious
Exterior Lighting

ON CERTAIN PASSENGER VEHICLES, THE BRAKE LAMP SWITCH MAY MALFUNCTION.

Alternatives in Midsize Sedan

Frequently Asked Questions

What are the most common 2004-2004 Infiniti Q70 complaints?

Owners have filed 81 complaints with NHTSA about the 2004-2004 Infiniti Q70. The systems they name most often are the fuel system, the engine and the safety systems.

Is the 2004-2004 Infiniti Q70 a good used car?

That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 81 complaints with NHTSA about the 2004-2004 Infiniti Q70. Check which systems they name most often and whether a recall is still open on that car.

How many NHTSA complaints does the 2004-2004 Infiniti Q70 have?

NHTSA has 81 owner complaints on file for the 2004-2004 Infiniti Q70 as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.

What recalls affect the 2004-2004 Infiniti Q70?

NHTSA lists 5 recalls covering some 2004-2004 Infiniti Q70 vehicles. Which ones apply depends on the VIN: enter it at nhtsa.gov/recalls to see the open campaigns on a specific car.

What should I check before buying a used Infiniti Q70?

Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the fuel system, the engine and the safety systems, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and title issues.

Does the Q70 have NHTSA crash test ratings?

NHTSA has not published crash test ratings for the 2004 Infiniti Q70. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.

Data from NHTSA federal complaints database. 81 complaints analyzed. Data confidence: moderate. Last updated: 2026-10-12.

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