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Infiniti vs Mercedes

Infiniti or Mercedes — what we actually found

Side by side from 88 Infinitis and 258 Mercedes vehicles buyers asked us to inspect before purchase. The average car we check scores 60/100.

vs
Head to head
InfinitiMercedes
Cars inspected88258
Average condition59/10063/100
In good shape (60+/100)52%61%
Holds up to (avg dips below decent)~120k mi~106k mi
Repainted or replaced panel83%79%
Structural repair found8%2%
Fault codes recently cleared24%20%

Green = the better number of the pair. Condition reflects the mix of cars that came to us — age, price, model — so treat small gaps as a tie.

How they score
Infiniti
Excellent 14% Good 38% Mediocre 35% Poor 14%
Mercedes
Excellent 16% Good 45% Mediocre 31% Poor 8%
How long do they stay good?
Good cars by mileage
▬ Infiniti▬ Mercedes▬ all cars
0 25 50 75 100 Infiniti, 40–60k mi: 86% in good shape (14 cars)Infiniti, 60–80k mi: 64% in good shape (11 cars)Infiniti, 80–100k mi: 57% in good shape (21 cars)Infiniti, 100–120k mi: 25% in good shape (12 cars)Infiniti, 120–140k mi: 27% in good shape (11 cars)Infiniti, 140–160k mi: 33% in good shape (6 cars)Infiniti, 160–180k mi: 29% in good shape (7 cars) Mercedes, 0–20k mi: 96% in good shape (28 cars)Mercedes, 20–40k mi: 89% in good shape (45 cars)Mercedes, 40–60k mi: 70% in good shape (44 cars)Mercedes, 60–80k mi: 49% in good shape (41 cars)Mercedes, 80–100k mi: 59% in good shape (34 cars)Mercedes, 100–120k mi: 23% in good shape (22 cars)Mercedes, 120–140k mi: 31% in good shape (16 cars)Mercedes, 140–160k mi: 38% in good shape (8 cars)Mercedes, 160–180k mi: 17% in good shape (6 cars) 40k 80k 120k 160k 200k mileage when we inspected it
Good cars by age
▬ Infiniti▬ Mercedes▬ all cars
0 25 50 75 100 Infiniti, 3 years old: 100% in good shape (5 cars)Infiniti, 4 years old: 100% in good shape (5 cars)Infiniti, 5 years old: 71% in good shape (7 cars)Infiniti, 6 years old: 33% in good shape (6 cars)Infiniti, 7 years old: 33% in good shape (6 cars)Infiniti, 8 years old: 64% in good shape (11 cars)Infiniti, 9 years old: 57% in good shape (7 cars)Infiniti, 10 years old: 50% in good shape (8 cars)Infiniti, 11 years old: 50% in good shape (8 cars)Infiniti, 12 years old: 20% in good shape (5 cars)Infiniti, 13 years old: 33% in good shape (6 cars) Mercedes, 1 years old: 89% in good shape (9 cars)Mercedes, 2 years old: 100% in good shape (16 cars)Mercedes, 3 years old: 96% in good shape (23 cars)Mercedes, 4 years old: 92% in good shape (24 cars)Mercedes, 5 years old: 72% in good shape (25 cars)Mercedes, 6 years old: 59% in good shape (22 cars)Mercedes, 7 years old: 67% in good shape (21 cars)Mercedes, 8 years old: 63% in good shape (19 cars)Mercedes, 9 years old: 50% in good shape (16 cars)Mercedes, 10 years old: 36% in good shape (11 cars)Mercedes, 11 years old: 50% in good shape (8 cars)Mercedes, 12 years old: 43% in good shape (14 cars)Mercedes, 13 years old: 17% in good shape (12 cars)Mercedes, 14 years old: 11% in good shape (9 cars)Mercedes, 16 years old: 20% in good shape (5 cars) 2y 4y 6y 8y 10y 12y 14y 16y vehicle age when we inspected it

Share 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). Dashed grey = all cars we check.

Most common faults
Infiniti
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%
Mercedes
Oil leaks · Engine
66%
Active error codes · Electronic equipment
53%
Tires condition & wear · Brakes and tires
40%
Fuel trim out of range · Engine
36%
Electronic components issues · Engine
20%
Trajectory by generation
Infiniti

Not enough Infinitis at the 5–10 year checkpoint yet to draw a generation trend.

Mercedes ▬ Consistent across generations 40% 60% 80% 2012–14: 58% in good shape (age-adjusted; 32 cars, raw 59%) 58 2015–17: 64% in good shape (age-adjusted; 41 cars, raw 66%) 64 2018+: 53% in good shape (age-adjusted; 33 cars, raw 61%) 53 2009–11 2012–14 2015–17 2018+

Share in good shape when inspected at the same age (5–10 years, age-adjusted), by model-year generation; dashed = all-brand average. All brands →

Whichever badge wins on paper, the car in front of you is its own story. Get it inspected before you pay.
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Based on 346 inspections · updated Jul 12, 2026