Infiniti Q45 Experts

#1 Paul Washburn
Paul Washburn
Reputation 150
#2 Michaela Mous
Michaela Mous
Reputation 90
#3 wb6epp
wb6epp
Reputation 60
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Infiniti Q45 Model Overview

Infiniti Q45 Questions

Michaela Mous
95

Rough Idle

I have a rough idle, which doesn't seem to affect acceleration (yet), but it is annoying as heck. No codes are thrown.

5,348 views with 20 answers (last answer 13 hours ago)
lorenz2u
0

Is There An Alternative To The Power Steering Reservoir For A 2005 Infiniti...

237 views with 1 answer (last answer 2 years ago)
T Smith
0

I Ran My Gas Very Low Maybe Even Out In My 1991 Q45.i Made It To The House...

when i let it sit after i started it it slowly acted like it was gone die so i gave it some gas and that made it die quicker. this is after i walk to the store and got bout 2 gallons of gas and put i...

392 views with 10 answers (last answer 2 years ago)
zoegee87
0

My Infiniti 2002 Q45 Lowbeam Lights Was Working One At A Time Now There Not...

bulbs and fuse are good.

192 views with 1 answer (last answer 2 years ago)
Saidu Aliyu
0

I Want To No Much About Engine Timing

Engine timing

85 views with 6 answers (last answer 2 years ago)

Older Infiniti Q45

2001 Infiniti Q45 Overview
2001 Infiniti Q45
41 pictures
2001 Infiniti Q45 reviews:
5 out of 5 stars5 out of 5 stars5 out of 5 stars5 out of 5 stars5 out of 5 stars
2000 Infiniti Q45 Overview
2000 Infiniti Q45
22 pictures
2000 Infiniti Q45 reviews:
4.7 out of 5 stars4.7 out of 5 stars4.7 out of 5 stars4.7 out of 5 stars4.7 out of 5 stars
1999 Infiniti Q45 Overview
1999 Infiniti Q45
76 pictures
1999 Infiniti Q45 reviews:
4.2 out of 5 stars4.2 out of 5 stars4.2 out of 5 stars4.2 out of 5 stars4.2 out of 5 stars
1998 Infiniti Q45 Overview
1998 Infiniti Q45
24 pictures
1998 Infiniti Q45 reviews:
4.2 out of 5 stars4.2 out of 5 stars4.2 out of 5 stars4.2 out of 5 stars4.2 out of 5 stars
1997 Infiniti Q45 Overview
1997 Infiniti Q45
57 pictures
1997 Infiniti Q45 reviews:
4.7 out of 5 stars4.7 out of 5 stars4.7 out of 5 stars4.7 out of 5 stars4.7 out of 5 stars
1996 Infiniti Q45 Overview
1996 Infiniti Q45
11 pictures
1996 Infiniti Q45 reviews:
4.5 out of 5 stars4.5 out of 5 stars4.5 out of 5 stars4.5 out of 5 stars4.5 out of 5 stars
1995 Infiniti Q45 Overview
1995 Infiniti Q45
1994 Infiniti Q45 Overview
1994 Infiniti Q45
22 pictures
1994 Infiniti Q45 reviews:
4.9 out of 5 stars4.9 out of 5 stars4.9 out of 5 stars4.9 out of 5 stars4.9 out of 5 stars
1993 Infiniti Q45 Overview
1993 Infiniti Q45
3 pictures
1993 Infiniti Q45 reviews:
5 out of 5 stars5 out of 5 stars5 out of 5 stars5 out of 5 stars5 out of 5 stars
1992 Infiniti Q45 Overview
1992 Infiniti Q45
1 picture
1992 Infiniti Q45 reviews:
5 out of 5 stars5 out of 5 stars5 out of 5 stars5 out of 5 stars5 out of 5 stars
1991 Infiniti Q45 Overview
1991 Infiniti Q45
11 pictures
1991 Infiniti Q45 reviews:
4.5 out of 5 stars4.5 out of 5 stars4.5 out of 5 stars4.5 out of 5 stars4.5 out of 5 stars
1990 Infiniti Q45 Overview
1990 Infiniti Q45
5 pictures

About the Infiniti Q45

The idea was novel, if flawed: A car commercial without a single shot of the car it was advertising. Meant to spark intrigue and curiosity, that advertisement may have actually hurt sales of the Infiniti Q45, one of the pioneering full-size sedans that combined lots of luxury with sports performance and V8 engine power. Introduced in 1989 and meant to compete against the Lexus LS and BMW 7 series, it was the first rear-wheel-drive sedan from Japan and, at the time, it offered the most powerful powertrain in its class, a 4.5-liter, 278-hp V8 and 5-speed shiftable automatic. A base trim and performance-tuned Q45t with Touring suspension were the initial trim offerings, and both were loaded with the expected luxury features (power seats, leather upholstery, sunroof, auto-dimming mirrors) and a long list of safety features. A Q45a, with the first-ever active-dampening suspension, was later available, but dropped in 1996.

Infiniti's solution to the Q45's lackluster sales was to dumb down its roomy sedan for the second generation in 2000, by softening the suspension, reducing the engine to a 4.1-liter, 266-hp V8, and making the outward appearance more conservative. A car that once hit 0-60 in 6.7 seconds now hit that mark in 7.7 seconds and sat on a new platform that came from the lower-end Nissan Cima in Japan. Trim names changed with the 2000 Anniversary edition, which became the Luxury for 2001. By the third generation in 2002, Infiniti went back to the drawing board, literally, returning to the Q45's roots as a sports-performing luxury car. The 4.5-liter V8 was back, now delivering 340-hp in either Luxury or Premium trims, and over the next four years, a firmer suspension, sport seats, real wood and chrome accents, a navigation system, and rearview camera were added to the list of standard equipment. A refresh in 2005 offered up a more aggressive front end and allegedly the most powerful headlights on the road.

Sales still lagged behind its European competitors, with just over 1,100 Q45s sold in 2005, despite offering the same upscale features at a lower price point. Drivers seemed satisfied with the Q45's performance, acceleration, and interior comfort and room, but its styling inside and out couldn't match the elegant refinement of its Mercedes and BMW competitors. The sedan was discontinued after 2006 to make way for Infiniti's new M35/45 series, but it could make a reappearance for 2008.