2003 Infiniti M45
The Verdict
Worst problem area
Fuel System
Fuel System leads by volume: 78 of 129 complaints (60%) mention it.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 2003 | 2004 | vs. 2003 Compact Cars |
|---|---|---|---|
| Annual fuel cost ($) | 4,300 | 4,300 | |
| Combined MPG | 18 | 18 | |
| City / Highway MPG | 16 / 22 | 16 / 22 | |
| CO₂ tailpipe (g/mi) | 494 | 494 | |
| Complaints filed | 129 | 43 | |
| Recalls issued | 2 | 2 | |
| Crash-involved complaints | 0 | 0 | |
| Fire-involved complaints | 0 | 0 | |
| Injuries reported | 0 | 0 | |
| Deaths reported | 0 | 0 | |
| Configurations compared | 1 | 1 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2003 Infiniti M45 have?
2 NHTSA recall campaigns as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2003 Infiniti M45?
Fuel System: 78 of 129 NHTSA complaints (60%) mention it.
What gas mileage does the 2003 Infiniti M45 get?
EPA rates it 18 MPG combined.
How much does it cost to fuel a 2003 Infiniti M45?
EPA estimates $4,300 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (1)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic (S5) | 8 | 4.5L | Rear-Wheel Drive | Premium | Compact Cars | 16 mpg | 22 mpg | 18 mpg | $4,300 | 494 g/mi |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 40 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 4 | 0 | 0 | 0 | 0 |
| Fuel System | 78 | 0 | 0 | 0 | 0 |
| Electrical | 22 | 0 | 0 | 0 | 0 |
| Brakes | 1 | 0 | 0 | 0 | 0 |
| Steering | 2 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 2 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 3 | 0 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 2 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 7 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 3 | 0 | 0 | 0 | 0 |
| Other | 5 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (2)
FUEL SYSTEM, GASOLINE · Campaign 12V088000 · Mar 6, 2012
Defect: 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.
Consequence: THE VEHICLE MAY STALL WITHOUT WARNING, INCREASING THE RISK OF A CRASH.
Remedy: NISSAN WILL NOTIFY OWNERS, AND DEALERS WILL MODIFY THE CIRCUIT BOARD FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 27, 2012. OWNERS MAY CONTACT NISSAN CUSTOMER SERVICE AT 1-800-647-7261.
ENGINE AND ENGINE COOLING · Campaign 03V455000 · Nov 19, 2003
Defect: ON CERTAIN PASSENGER VEHICLES, THE CIRCUIT BOARD FOR THE CRANK POSITION SENSOR OR CAM POSITION SENSOR MAY HAVE AN IMPROPER SOLDER JOINT DUE TO SOLDER DEFORMATION CAUSED BY HEAT STRESS ACCELERATED BY THE EXISTENCE OF FLUX RESIDUE DURING THE SOLDERING PROCESS.
Consequence: THIS COULD CAUSE THE "SERVICE ENGINE SOON" WARNING LIGHT TO COME ON, CREATE A NO START CONDITION, CAUSE REDUCED ENGINE POWER, OR CAUSE THE ENGINE TO STOP RUNNING WITHOUT WARNING DURING VEHICLE OPERATION, WHICH COULD RESULT IN A CRASH.
Remedy: DEALERS WILL REPLACE THE CRANK POSITION SENSORS. CAMSHAFT POSITION SENSOR(S), AND IN SOME CASES, THE VARIABLE TIMING CONTROL SENSOR(S). VEHICLES INVOLVED IN A PREVIOUS RECALL CAMPAIGN, 01V357, ARE ALSO INCLUDED IN THIS NEW CAMPAIGN. THE REPLACEMENT SENSORS USED IN THAT CAMPAIGN ARE ALSO AFFECTED. OWNER NOTIFICATION BEGAN ON DECEMBER 22, 2003. OWNERS SHOULD CONTACT NISSAN AT 1-800-647-7261 OR INFINITI AT 1-800-662-6200.