Model year guide

1999 Infiniti Q45

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 1999 Infiniti Q45 is worth — from official NHTSA and EPA data. 6 on record.

1999 Infiniti Q45 at a glance

Owner complaints9
Combined18 mpg
Typical price$1,020

Free: that car's specs and build sheet, model-year recall campaigns and a fair price.

1999 Infiniti Q45 common problems

The most-reported problem areas across all 9 owner complaints filed with NHTSA — and what to check before you buy.

Tires
Check tread depth, the DOT age date, and that all four tires match with even wear. Look for bulges or cracks.
Structure
Inspect for rust, fresh undercoating, mismatched paint, uneven panel gaps and any sign of prior collision or frame repair.
Wheels
Inspect wheels for bends, cracks and curb rash, and feel for vibration at highway speed.
Steering
Steering should be tight and centered — no play, clunks or wandering. Test at low and highway speed; listen for power-steering whine.
Suspension
Listen for clunks over bumps, check the car sits level, and look for uneven tire wear and worn shocks or struts.
Vehicle Speed Control
Test cruise control and throttle response, and watch for any hesitation or unintended acceleration.

1999 Infiniti Q45 MPG & running costs

Combined18 mpg
City16 mpg
Highway22 mpg
Est. annual fuel cost$4,550

Source: U.S. EPA / DOE fueleconomy.gov.

What's a 1999 Infiniti Q45 worth?

Low
$500
Typical price
$1,020
High
$1,550

From 5 comparable 1999 Infiniti Q45 listings.

Estimated 5-year cost to own

A rough guide to what running a 1999 Infiniti Q45 costs over five years and 75,000 miles.

Fuel (5 yrs)$22,750
Fuel only$22,750
Per mile$0.30

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

1999 Infiniti Q45 trims & engines on record

Trims
Base
Engines
4.1L 8-cyl

1999 Infiniti Q45 vehicles on record

1999 Infiniti Q45 BaseJNKBY31AXXM606563 1999 Infiniti Q45 BaseJNKBY31A9XM603072 1999 Infiniti Q45 BaseJNKBY31A4XM602170 1999 Infiniti Q45 BaseJNKBY31A6XM604633 1999 Infiniti Q45 BaseJNKBY31A8XM601684 1999 Infiniti Q45 BaseJNKBY31A8XM604973

Other Infiniti Q45 model years

2005 2004 2003 2002 2001 2000 1998 1997 1995 1994

1999 Infiniti Q45 — frequently asked questions

What are the most common problems with the 1999 Infiniti Q45?

Across all 9 owner complaints filed with NHTSA, the most-reported problem areas are tires, structure, wheels.

What gas mileage does the 1999 Infiniti Q45 get?

The 1999 Infiniti Q45 has a U.S. EPA estimate of 18 mpg combined (16 city / 22 highway).

How much is a 1999 Infiniti Q45 worth?

Comparable 1999 Infiniti Q45 listings run roughly $500–$1,550, typically around $1,020 (from 5 vehicles).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.