2003 Infiniti M45 Sedan Review | Edmunds.com

2003 Infiniti M45 Sedan

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Infiniti M45 Features and Specs

Features & Specs

  • Engine 4.5 L V 8-cylinder
  • Drivetrain Rear Wheel Drive
  • Transmission 5-speed Automatic
  • Horse Power 340 hp @ 6400 rpm
  • Fuel Economy 16/22 mpg
  • Bluetooth No
  • Navigation No
  • Heated Seats Yes

Review of the 2003 Infiniti M45

  • A capable Japanese sedan that makes a worthwhile alternative to Germany's midsize stalwarts.

  • Safety
  • Pros

    Brawny V8 engine, capable handling, plenty of luxury features, reasonable price.

  • Cons

    Limited rear-seat legroom and trunk space, fussy control layout.

  • What's New for 2003

    The M45 performance sport sedan comes standard with class-leading V8 performance and a long list of world-class amenities.

What Others Are Saying

Customer Reviews

  Average Consumer Rating (104 total reviews)  |  Write a Review

1 of 1 people found this review helpful

Nice car bad back seat

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Vehicle: 2003 Infiniti M45 4dr Sedan (4.5L 8cyl 5A)

Purchased the car about 8 months ago. It had 124,000 miles on it. I was on a local government auction site and saw it. I wasn't even looking for a car. I was actually looking for something else not car related. It had issues. Needed paint, starter, driver seat and some tlc. I checked for recalls and found that it had 2 recalls that needed to be done. Infiniti fixed them. While at the Infiniti Shop they saw that the gas gauge wasn't working properly. That was a $1000.00+ to repair. So after getting it painted, a new driver seat, starter and putting some tlc in it at an additional cost of $1000.00+ I finally think I have a great running car. Car has some get up to it.



1 of 1 people found this review helpful

Always liked the style and

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Vehicle: 2003 Infiniti M45 4dr Sedan (4.5L 8cyl 5A)

I just purchased a 2003 M45 with 70,000 miles on it. I've always liked the style and the power is great. Its a great used car bargain I'm just glad I never bought it new. The quality is below luxury in my book. I also have a Lexus the quality of the material and finish is top notch. The Infiniti not so much trunk struts don't work, center arm rest is cheap and feels loose, sunroof liner coming apart, fuel guage not reading correctly (recalled ), engine doesn't start up on first try sometimes, and airbag light is on. Alot of issues for a car with 70k, but I've always wanted one and I dont regret buying it for $7500. Especially since its not a daily driver. I have a Gs300 and Yaris for that.



2 of 4 people found this review helpful

Don't buy it.

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Vehicle: 2003 Infiniti M45 4dr Sedan (4.5L 8cyl 5A)

Obviously all used cars now and if you see one on the lot steer clear and let it rot on the lot. We have owned one now for about 4 years and up til recently have been some what satisfied. It has about 80K on it and everything is falling apart. Like previous poster gas guage is unreliable and it has been in the shop waiting for a part for over a week now. The whole instrument cluster has to be replaced!! A big rig has a tighter turning radius. Interior lights have been replaced a few times too and rarely work correctly. Infinities are not built to last.




03 infiniti m45 best car

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Vehicle: 2003 Infiniti M45 4dr Sedan (4.5L 8cyl 5A)

Best car i ever bought.Paid 15,000 with only 88,000 and a full elite Infiniti warranty.had major oil burning issue which Infiniti took care of and replaced L.B. @ 96,000. Fun to drive,very fast,and looks great.




Jeckyll and hyde

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Vehicle: 2003 Infiniti M45 4dr Sedan (4.5L 8cyl 5A)

I still believe this car is a Jeckyll and Hyde. We're still enjoying the power, but the transmission isn't very responsive and the manual mode is worthless. The seats are comfortable and have nice amenities, but the driver's seat squeaks now. We still love all the gadgets, but they are difficult to use. We've encountered more issues, but we do have 108K miles now. The exhaust manifold was changed under warranty. Now it's cracked again - poorly engineered. We still burn a quart every 1,000 miles (108 quarts so far!) Tire wear is phenomenal. The originals ran 28K miles. The second set were Essenzia and were just changed. The new Hankook Ventas don't feel very good on the car.




Still drives very well

by on
Vehicle: 2003 Infiniti M45 4dr Sedan (4.5L 8cyl 5A)

This car had lots of positives, but the few negatives does sour our ownership experience. Our M45 has a very unique look, which I've come to like. The interior is still very nice. Our car still drives very well - it doesn't feel like 108K mi. The power is very impressive. The aluminum suspension components cut unsprung weight. A lot of things have broken, which is upsetting. Infiniti service writers are nice, but they will not fight for the customer. Our air bag light has been on since a hair over 50K mi. The warranty is good up to 7yr/70K, but they wouldn't fix it. The oil issue stinks. Due to the bad service, I won't buy again.



Full 2003 Infiniti M45 Review

What's New for 2003

The M45 performance sport sedan comes standard with class-leading V8 performance and a long list of world-class amenities.

Talk About The 2003 M45

Read more about the 2003 Infiniti M45

Gas Mileage

EPA-Rated MPG

  • 16
  • cty
/
  • 22
  • highway
Calculate Yearly Fuel Costs