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2003 Infiniti Q45 - Specs

2003 Infiniti Q45

2003 Infiniti Q45 - Review
2003 Infiniti Q45 - Photos
2003 Infiniti Reviews

2003 Infiniti Q45 - Price Quote

Visit Infiniti for more information on the Infiniti Q45.

Infiniti Q45 - Engine Specs
Infiniti Q45 - Powertrain Specs
Infiniti Q45 - Suspension Specs
Infiniti Q45 - Exterior Specs
Infiniti Q45 - Interior Specs
Infiniti Q45 - Safety and Security

Engine 2003 Infiniti Q45
Type VK45DE 4.5-liter DOHC 32-valve V8 with aluminum-alloy block and heads and molybdenum coated pistons
Displacement 4.5 liters
Horsepower 340 hp @ 6,400 rpm
Torque 333 lb-ft @ 4,000 rpm
Bore X stroke (mm) 93.0 x 82.7
Compression ratio (:1) 10.5
Induction system Sequential multi-point fuel injection
Valvetrain DOHC 4-valves-per-cylinder, titanium valves with continuous variable valve timing control
Recommended fuel Premium unleaded
Exhaust and emissions system Single exhaust and three-way catalytic converter with closed loop feedback and electric dual-mode muffler with
dual chrome tips
Platinum-tipped spark plugs Standard
Maximum engine speed 6,700 rpm

Drivetrain 2003 Infiniti Q45
Drive configuration Front engine/rear-wheel drive
Transmission type 5-speed electronically controlled automatic overdrive transmission with real time feedback with learning algorithm and manual shift mode
Gear ratios ( :1)  
     1st 3.540
     2nd 2.264
     3rd 1.471
     4th 1.000
     5th 0.834
   Reverse 2.370
Final drive ratio ( :1) 3.133
Differential type Conventional

Body, Suspension & Steering Luxury Premium
Body type All-steel unibody construction
Suspension Front Independent strut with stabilizer bar and coil springs (available driver selectable suspension mode with active damping)
Rear Independent multi-link with stabilizer bar and coil springs (available driver selectable suspension mode with active damping)
Steering ratio ( :1) 18.1
Turning circle (curb-to-curb in feet) 36.1
Turns (lock-to-lock) 3.3
Steering type Electrically-controlled vehicle-speed-sensitive power-assisted rack-and-pinion
Driver Selectable Suspension Mode (RJ Suspension) - Standard
Active Damping - Standard

Brakes 2003 Infinti Q45
Brakes Front 11.4" x 1.1" power-assisted vented disc
Rear 11.5" x 0.6" power-assisted vented disc
Electronic Brake force Distribution (EBD) and Brake Assist Standard
4-channel/4-sensor Anti-lock Braking System (ABS) Standard

Electrical 2003 Infiniti Q45
Electronic ignition system Standard
110 amp alternator Standard
Low maintenance 12-volt battery Standard

Wheels and Tires Luxury Premium
17" 6-spoke aluminum-alloy wheels (7.5 JJ x 17) Standard -
18" 8-spoke aluminum-alloy wheels, "Titanium" finish (7.5 JJ x 18) - Standard
18" 8-spoke chrome-finished wheels (7.5 JJ x 18) - Optional
225/55R17 V-rated all-season radial tires Standard -
225/55R17 V-rated run-flat all-season radial tires Optional -
245/45R18 V-rated all-season radial tires - Standard
Full-size spare tire with aluminum-alloy wheel Standard
Low Tire Pressure Warning System Standard

Exterior Dimensions (in.) Luxury Premium
Wheelbase 113.0
Overall length 199.6
Overall width 72.6
Overall height 58.7
Track width Front 62.2 62.6
Rear 61.4 61.8
Minimum ground clearance 5.7 5.8
Coefficient of drag (Cd) 0.30

Exterior Features and Options 2003 Infiniti Q45
High Intensity Discharge (HID) xenon headlights, seven lens with auto on/off feature Standard
Body-color front and rear bumpers Standard
Green-tinted glass with dark-tint upper windshield band and UV cut Standard
Body-color door handles with chrome insert Standard
Dual body-color power remote-controlled outside mirrors with anti-glare coating, heated with timer, automatic day/night adjustment and passenger mirror tilt-down (in reverse gear), integrated turn signals and puddle lights Standard
Rear window defroster with timer Standard
Rear center high-mounted stop light Standard
Bright grille with large chrome Infiniti emblem Standard
Black windshield moldings and window moldings Standard
Power sliding glass sunroof with one-touch auto-open/close and rear tilt with safety feature Standard

Interior Dimensions (in.)
Head room
Shoulder room
Hip room
Leg room

Interior Features and Options Luxury Premium
10-way power driver's seat with power lumbar support Standard
8-way power passenger's seat Standard
Power recline/slide rear seat and rear-entry assist with cancellation switch - Standard
Sojourner leather-appointed seats and head restraints Standard
Heated front seats Standard -
Climate-controlled front seats (cooling and heating) - Standard
Heated rear seats - Standard
Adjustable front seat active head restraints and adjustable rear head restraints Standard
Driver's and front-passenger's seat back pockets Standard
Electrochromic rear view mirror w/electronic compass Standard
Stainless steel sill plates Standard
Driver's entry/exit system with two-position memory function Standard
Genuine wood/leather-wrapped steering wheel and gearshift knob Standard
Genuine wood trim Standard
Fully-molded simulated leather trim on front/rear door armrests and door pockets Standard
Simulated wood trim on front and rear window switches Standard
Ceiling-mounted assist grips Standard
Front-seat back grips - Standard

Capacities 2003 Infiniti Q45
Seating capacities 5
Interior passenger volume (cu. ft.) 102.1 (w/sunroof)
Cargo dimensions (L x W x H, in inches) 31.9 x 66.7 x 19.4 (w/full-size spare tire)
31.9 x 66.7 x 20.9 (w/temporary spare tire)
Fuel tank (gals.) 21.4
Engine oil (qts.) 6.7
Engine coolant (qts.) 8.9
Maximum towing capacity (lbs.) TBD

Curb Weights 2003 Infiniti Q45
Curb weight (lbs.) 3,977
Weight distribution (% fr/rr) 54 / 46
GVWR (lbs.) TBD

Audio System Luxury Premium
Bose premium 300-watt audio system with AM/FM/cassette, in-dash CD player with 8-speakers and AudioPilot™ Noise Compensation with steering wheel audio controls Standard
Rear window diversity antenna Standard
Satellite Radio Optional Standard

Safety and Security Features
2003 Infiniti Q45
Supplemental side-impact curtain air bag, front and rear, roof mounted Standard
Active front-seat head restraints with 4-way manual adjustment Standard
Rear center head restraint with 2-way manual adjustment Standard
Pipe-style steel side-door guard beams Standard
Shift interlock system Standard
Child safety rear door locks Standard
LATCH system: rear child safety seat tether anchors (3 in rear parcel shelf, lower rigid bar anchor in 2 outboard positions) Standard
Front seat belts with pretensioners and load limiters Standard
Energy absorbing steering column Standard
3-point front seat belts with adjustable upper anchors (passenger side ALR/ELR) Standard
Hood buckling creases and safety stops Standard
Front and rear crumple zones Standard
Body side reinforcements Standard
Vehicle Security System with indicator light Standard
Remote keyless entry system Standard
First aid kit Standard
Electronic master ignition key Standard
Emergency wallet key Standard
Infiniti Vehicle Immobilizer System Standard

EPA Mileage Estimates 2003 Infiniti Q45
City 17 mpg
Highway 25mpg
EPA Classification Mid-size

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