- Worst Model Year:
- 2003
- Worst Complaint:
- exhaust manifold cracked
We don't have a lot of complaints on file for the Infiniti M45 (although feel free to add yours here) -- it's either not very popular ... or it's very, very good.
The 2003 Infiniti M45 has the most complaints, & the most-reported problem is also with the 2003 M45 for exhaust manifold cracked.
Worst Reported Problems with the M45
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#1: exhaust manifold cracked on the 2003 M45
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#2: burns excessive oil and blue smoke at start up on the 2003 M45
Latest Owner Complaints About the M45
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excessive oil consumption -- 2004 M45:
I don't drive this car hard. For an almost $50,000 retail car, 3 connector rods should not go bad at 59,000 miles. The exhaust manifold should not have cracked. Unbelievable! I will never own another Nissan product. The car also burns 2-3 quarts of oil between changes. Read more »
This problem has been reported 1 times by other 2004 M45 owners.
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excessive oil consumption -- 2006 M45:
Shortly after purchase, I noticed oil consumption. Dealer minimized problem, trying to deceive customer by stating the problem was normal. Neutral mechanic stated car needs new engine due to "bad piston rings". Google search for this engine reveals that Nissan is aware of the problem, but instead ... Read more »
This problem has been reported 1 times by other 2006 M45 owners.
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air bag malfunction light on -- 2003 M45:
The airbag warning light triggered, so we brought it in to the Infiniti dealer. They told us that some sensor was bad and that it was not under warranty. I showed them the page in the warranty book stating that the restraint systems are covered for 7 years and 70,000 miles. They said the air ... Read more »
This problem has been reported 1 times by other 2003 M45 owners.
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exhaust manifold cracked -- 2003 M45:
This is the second exhaust manifold that has cracked on my car. The first went out around 45K miles and was fixed under warranty. The first time it was a small crack and produced a ticking noise. This time it's a bit larger and makes the noise of a rumble. It makes the engine sound powerful ... Read more »
This problem has been reported 2 times by other 2003 M45 owners.
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burns excessive oil and blue smoke at start up -- 2003 M45:
These V8 engines burn significant oil. Also if left for any time, when starting the engine sounds like a bag of nails (Ugly noise for a few seconds). This is creating engine wear. Read more »
This problem has been reported 2 times by other 2003 M45 owners.