2005 Infiniti Q45 Base
All photo credits
- Photo: Infiniti Q45 (F50) front by Tokumeigakarinoaoshima, CC0, via Wikimedia Commons
- Photo: 2005-2006 Infiniti Q45 -- 03-28-2012 by IFCAR, Public domain, via Wikimedia Commons
- Photo: 2004 Infiniti Q45 (8878411795) by Niels de Wit from Lunteren, The Netherlands, CC BY 2.0, via Wikimedia Commons
- Photo: Infiniti Q45 (F50), Bangladesh. (31962269794) by Shadman Samee from Dhaka, Bangladesh, CC BY-SA 2.0, via Wikimedia Commons
- Photo: 2003 Infiniti Q45 (4.5) V8 rear 10.27.18 by Kevauto, CC BY-SA 4.0, via Wikimedia Commons
The 2005 Infiniti Q45 Base is a 340-hp 4.5-liter V8 with a 5-speed automatic w/overdrive, learning algorithm, manual shift mode and rear-wheel drive. It starts at $56,400 MSRP and is rated at 18 mpg combined.
It makes 340 horsepower at 6,400 rpm and 333 lb-ft of torque at 4000 rpm, spinning to a 6,700 rpm redline. EPA fuel-economy estimates are 16 mpg city and 22 mpg highway (18 mpg combined).
The Q45 measures 200.8 inches long on a 113.0-inch wheelbase and has a curb weight of 4,050 lb.
| Spec | Value |
|---|---|
| Vehicle | |
| Body Type | Sedan |
| Powertrain | Gas |
| Price | |
| MSRP | $56,400 ($93,856 *) |
| Engine | |
| Engine Type | VK45DE 4.5L DOHC V8 |
| Displacement | 4.5 L |
| Horsepower | 340 hp @ 6,400 rpm |
| Torque | 333 lb-ft @ 4000 rpm |
| Redline | 6,700 rpm |
| Valvetrain | DOHC, 4 valves/cylinder (32 total), Continuously Variable Valve Timing Control System (CVTCS), variable-length induction |
| Bore and Stroke | 93 x 82.7 mm |
| Compression Ratio | 10.5:1 |
| Injection Type | Electronic multi-port fuel injection (MPFi) |
| Drivetrain | |
| Drive Type | Rear-Wheel Drive |
| Transmission | |
| Transmission | 5-speed automatic w/overdrive, learning algorithm, manual shift mode (recalibrated for 2005) |
| 1st Gear | 3.54 (48 mph **) |
| 2nd Gear | 2.26 (75 mph **) |
| 3rd Gear | 1.47 (116 mph **) |
| 4th Gear | 1 (170 mph **) |
| 5th Gear | 0.83 (205 mph **) |
| Reverse | 2.37 |
| Final Drive | 3.13 |
| Fuel Economy | |
| City | 16 MPG |
| Highway | 22 MPG |
| Combined | 18 MPG |
| Recommended Fuel | Premium unleaded gasoline |
| Suspension | |
| Front Suspension | Independent strut-type, stabilizer bar, standard electronically-controlled active damping (driver-selectable Auto/Sport modes) |
| Rear Suspension | Independent multi-link, stabilizer bar, standard electronically-controlled active damping (driver-selectable Auto/Sport modes) |
| Brakes | |
| Front Brake Disc | 290mm vented disc |
| Rear Brake Disc | 292mm vented disc |
| Tires & Wheels | |
| Wheels Front | 17-inch titanium-color aluminum-alloy |
| Wheels Rear | 17-inch titanium-color aluminum-alloy |
| Tires Front | P225/55VR17 |
| Tires Rear | P225/55VR17 |
| Dimensions & Weight | |
| Length | 200.8 in |
| Width | 72.6 in |
| Height | 58.7 in |
| Wheelbase | 113 in |
| Front Track | 62.6 in |
| Rear Track | 61.8 in |
| Ground Clearance | 5.7 in |
| Cargo Volume | 13.6 ft³ |
| Curb Weight | 4,050 lbs |
| Weight Distribution (F/R) | 54% / 46% |
| Interior | |
| Headroom Front | 38.4 in |
| Headroom Rear | 36.4 in |
| Legroom Front | 44 in |
| Legroom Rear | 37.3 in |
| Shoulder Room Front | 58.2 in |
| Shoulder Room Rear | 57.2 in |
| Hip Room Front | 56.5 in |
| Hip Room Rear | 55 in |
Similar cars
Rivals to the 2005 Infiniti Q45 Base with similar size, power and price from around the same years.
Safety & Recalls
NCAP safety ratings
Tested, but no star ratings were published (2005 Infiniti Q45 4-DR w/SAB).
Recalls
3 recalls on file with NHTSA for the 2005 Infiniti Q45. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.
Feb 28, 2012 · AIR BAGS:SIDE/WINDOW
NISSAN IS RECALLING CERTAIN MODEL YEAR 2003-2005 INFINITI Q45 VEHICLES. A WIRING CONNECTOR FOR THE SEAT MOUNTED AIRBAG MAY EXPERIENCE INCREASED ELECTRICAL RESISTANCE, RESULTING IN THE NON-DEPLOYMENT OF THE SIDE AIR BAGS.
Consequence: NON-DEPLOYMENT OF SIDE AIR BAGS COULD INCREASE THE RISK OF PERSONAL INJURY.
Remedy: NISSAN WILL NOTIFY OWNERS, AND DEALERS WILL MODIFY THE WIRING CONNECTOR, FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MARCH 19, 2012. OWNERS MAY CONTACT NISSAN CUSTOMER SERVICE AT 1-800-647-7261.
NHTSA campaign 12V079000
Oct 13, 2006 · EXTERIOR LIGHTING:BRAKE LIGHTS
CERTAIN VEHICLES FAIL TO COMPLY WITH THE STOP LAMP AND REFLEX REFLECTOR REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, 'LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Consequence: THIS STANDARD IS TO REDUCE CRASHES, INJURIES AND DEATHS BY PROVIDING ADEQUATE ILLUMINATION OF THE ROADWAY, AND BY ENHANCING THE CONSPICUITY OF MOTOR VEHICLES ON THE PUBLIC ROADS SO THAT THEIR PRESENCE IS PERCEIVED AND THEIR SIGNALS UNDERSTOOD, BOTH IN DAYLIGHT AND IN DARKNESS OR OTHER CONDITIONS OF REDUCED VISIBILITY.
Remedy: DEALERS WILL REPLACE THE REAR COMBINATION LAMP ASSEMBLIES FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN ON OR ABOUT APRIL 16, 2007. OWNERS MAY CONTACT INFINITI AT 1-800-662-6200.
NHTSA campaign 06V395000
Aug 29, 2005 · CHILD SEAT:LATCH STRAP
CERTAIN PASSENGER VEHICLES EQUIPPED WITH POWER REAR SEATS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEMS." THE LOWER ANCHORAGE BRACKETS IN THE REAR SEATS DO NOT MEET THE LOCATION REQUIREMENT IN THIS STANDARD. THIS MAY CAUSE DIFFICULTY IN ATTACHING SOME CHILD SEATS TO THESE BRACKETS.
Consequence: IF A CHILD SEAT IS NOT SECURED, THERE IS AN INCREASED RISK OF INJURY IN A CRASH.
Remedy: DEALERS WILL REPLACE THE LOWER ANCHORAGE BRACKETS WITH MODIFIED ONES TO ENSURE THAT THE STANDARD IS MET. THE RECALL BEGAN ON OCTOBER 17, 2005. OWNERS MAY CONTACT INFINITI AT 1-800-662-6200.
NHTSA campaign 05V374000
4 owner complaints to NHTSA for the 2005 Infiniti Q45
Owner Complaints
4 owner complaints filed with NHTSA for the 2005 Infiniti Q45 (1 mention a crash, 1 an injury). See all on nhtsa.gov
| Air Bags | 1 |
| Electrical System | 1 |
| Seats | 1 |
| Tires | 1 |
| Vehicle Speed Control | 1 |
Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.
Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2005 INFINITI Q45. US-market vehicles only; data cached for up to 7 days.