2003 Infiniti M45
US · Compact Cars
The 2003 Infiniti M45 is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- 4.5L 8-cylinder
- Power
- Not available
- Torque
- Not available
- Transmission
- 5-speed automatic
- Drivetrain
- RWD
- Fuel
- Gasoline
- Seating
- Not available
Key Performance & Dimensions
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | 4.5L 8-cylinder | |
| Displacement | 4.5 L | |
| Cylinders | 8 | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Not available from our sources: Aspiration, Power, Torque.
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 5 | |
| Drivetrain | RWD | EPA fueleconomy.gov |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 18 mpg (13.1 L/100 km) | EPA fueleconomy.gov |
| City | 16 mpg (14.7 L/100 km) | |
| Highway | 22 mpg (10.7 L/100 km) |
Not available from our sources: Electric range, Battery capacity.
Trims and configurations
1 configuration listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
NHTSA lists 2 recall campaigns for this model year. Last checked October 18, 2026.
12V088000: FUEL SYSTEM, GASOLINE
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.
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.
Reported March 6, 2012. View on NHTSA
03V455000: ENGINE AND ENGINE COOLING
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.
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.…
Reported November 17, 2003. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved October 18, 2026 · US Government public data
- NHTSA vPIC · retrieved October 18, 2026 · US Government public data
Source checked: October 18, 2026
Data verified: October 18, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Related vehicles
- 2004 Infiniti M45
Gasoline
4.5L 8-cylinder · RWD
18 mpg (13.1 L/100 km)
Frequently asked questions
What engine does the 2003 Infiniti M45 have?
4.5L 8-cylinder. Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 2003 Infiniti M45?
Combined fuel economy is 18 mpg (13.1 L/100 km), as published by the source shown in the specification table.
Is the 2003 Infiniti M45 front-wheel, rear-wheel or all-wheel drive?
Drivetrain: RWD.
Are there recalls for the 2003 Infiniti M45?
NHTSA lists 2 recall campaigns for this model year (last checked October 18, 2026). Details are in the Recalls section.