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Infiniti: reliability & common problems

#11 of 24
Longevity rank#1 Tesla holds up to ~185k
~121k
Trouble-free mileageacross all body styles
88
Infinitis inspectedreal pre-purchase inspections
61/100
Average conditionall cars we check: 61/100



Based on 88 used Infinitis we inspected, they are in about average shape — average condition 61/100 vs 61 for all cars we check. Every number on this page comes from real pre-purchase inspections — cars people were about to buy and paid an independent inspector to go through point by point, engine to underbody, paint depth to error codes. Not owner surveys, not warranty statistics, not forum lore: what we actually found.

What we found

Most common faults

Oil leaks · Engine
56%
Tires condition & wear · Brakes and tires
48%
Active error codes · Electronic equipment
38%
Fluid leaks · Steering (hydraulic power)
36%
Low coolant / cooling system issues · Engine
31%

Share of inspected Infinitis where each item was flagged.

How they score

Excellent 27% Good 26% Mediocre 26% Poor 20%
Hidden history

What the seller might not mention — how often we find it on Infinitis.

83%had a repainted or replaced panelall cars: 75%
8%showed structural repairall cars: 4%
24%had fault codes recently clearedall cars: 23%

Compare with another brand:

Cross-shopping? Infiniti vs BMW · Infiniti vs Lexus · Infiniti vs Mercedes

How long does a Infiniti last?

Across every Infiniti body style we've inspected — sedans, SUVs and anything else pooled together — the average one's condition dips below decent (a 55/100 score) around ~121k miles. It ranks Infiniti #11 of 24 brands we have enough data to rate; the longest-lasting, Tesla, holds up to ~185k. Shopping a Infiniti near that mileage? Expect more wear ahead — see which makes give the best odds at your budget.



Good cars by mileage
0 25 50 75 100 40–60k mi: 86% in good shape (14 cars) 60–80k mi: 82% in good shape (11 cars) 80–100k mi: 57% in good shape (21 cars) 100–120k mi: 33% in good shape (12 cars) 120–140k mi: 18% in good shape (11 cars) 140–160k mi: 67% in good shape (6 cars) 160–180k mi: 14% in good shape (7 cars) 40k 80k 120k 160k 200k mileage when we inspected it
Good cars by age
0 25 50 75 100 3 years old: 100% in good shape (5 cars) 4 years old: 100% in good shape (5 cars) 5 years old: 71% in good shape (7 cars) 6 years old: 50% in good shape (6 cars) 7 years old: 33% in good shape (6 cars) 8 years old: 45% in good shape (11 cars) 9 years old: 57% in good shape (7 cars) 10 years old: 38% in good shape (8 cars) 11 years old: 50% in good shape (8 cars) 12 years old: 40% in good shape (5 cars) 13 years old: 50% in good shape (6 cars) 2y 4y 6y 8y 10y 12y 14y 16y vehicle age when we inspected it

Share of Infinitis in good shape (scoring 60+/100) by mileage and by age when we inspected them (each dot ≥5 cars; rolled-back odometers excluded from the mileage curve). The dashed grey curve is all cars we check.



Infiniti models we've inspected
Q50 18 cars · profile soon G37 15 cars · profile soon QX60 13 cars · profile soon

Recently inspected:

2007 Infiniti FX35 · 171k mi — flagged: exhaust system leaks, oil leaks, signs of recent repair. Inspected Jul 10.
2023 Infiniti QX80 · 70k mi — flagged: fault codes recently cleared. Inspected Apr 29.
The bottom line

Infiniti buyers should treat every car as potentially accident-touched—repaints are rampant and structural repairs pop up twice as often as usual—so demand a thorough body and frame check first. Under the hood the pattern is clear: oil leaks hit more than half the cars, cooling issues and power-steering fluid leaks pile on, plus active error codes, so those are your non-negotiable inspection points. Tires often need immediate attention too. Longevity holds to about 121,000 miles before condition drops, making a clean example under that mark the only smart window; use the leak-prone engines to hammer the price or walk away from anything neglected.

FAQ
?
Is Infiniti reliable?
53% of the 88 Infinitis we inspected scored 60/100 or higher, averaging 61/100 — they are in about average shape.
?
What are the most common problems with a used Infiniti?
Across the Infinitis we inspected, the items we flag most often are oil leaks (56%), tires condition & wear (48%), active error codes (38%).
Thinking of buying a Infiniti? Get the exact car inspected before you pay.
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Based on 88 inspections · updated Aug 12, 2026