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Infiniti: reliability & common problems

#9 of 24
Longevity rank#1 Tesla holds up to ~176k
~120k
Trouble-free mileageacross all body styles
88
Infinitis inspectedreal pre-purchase inspections
59/100
Average conditionall cars we check: 60/100



Based on 88 used Infinitis we inspected, they are in about average shape — average condition 59/100 vs 60 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 14% Good 38% Mediocre 35% Poor 14%
Hidden history

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

83%had a repainted or replaced panelall cars: 76%
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 ~120k miles. It ranks Infiniti #9 of 24 brands we have enough data to rate; the longest-lasting, Tesla, holds up to ~176k. 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: 64% in good shape (11 cars) 80–100k mi: 57% in good shape (21 cars) 100–120k mi: 25% in good shape (12 cars) 120–140k mi: 27% in good shape (11 cars) 140–160k mi: 33% in good shape (6 cars) 160–180k mi: 29% 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: 33% in good shape (6 cars) 7 years old: 33% in good shape (6 cars) 8 years old: 64% in good shape (11 cars) 9 years old: 57% in good shape (7 cars) 10 years old: 50% in good shape (8 cars) 11 years old: 50% in good shape (8 cars) 12 years old: 20% in good shape (5 cars) 13 years old: 33% 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 assume most cars have been repainted and check carefully for structural repairs, because those histories pair with frequent engine oil leaks and cooling issues that demand a full underbody inspection and leak test first thing. Active error codes and steering fluid leaks often follow, so scan for those and factor tire replacement into any deal. Condition typically holds until 120,000 miles—ninth best among brands—making lower-mileage examples the smartest targets; walk away if the seller dismisses the leaks or won't open up about past bodywork.

FAQ
?
Is Infiniti reliable?
52% of the 88 Infinitis we inspected scored 60/100 or higher, averaging 59/100 — 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 Jul 12, 2026