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Lexus LS400 - 1997

303.5 faults per 100 tests
Year average for all cars of 1997 is 338.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Lexus LS400, model year 1997. Sample size: 155 cars, 318 tests and 965 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 155 cars

The 1997 Lexus LS400 has an overall defect rate of 303 per 100 vehicles, which is notably lower than the average of 335 per 100 for cars of the same year, reflecting a 9% improvement. This model demonstrates significant strengths in categories such as brakes, lights and electrics, and body structure, where it performs better than average by considerable margins. However, the LS400 does show a higher incidence of issues related to wheels, suspensions, and axles, which is a concern compared to the average. Interestingly, as mileage increases, the defect rate also rises sharply, particularly beyond 124,000 miles, indicating that older models may require more attention. Overall, the LS400 stands out for its reliability in various crucial areas while facing certain challenges as it ages.

Cars by mileage segment

Total: 155 cars

Categories

Brakes
▲ 21.1% better
111.3 faults / 100 tests
Year avg: 141.1 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake lining or pad: worn below 1.5mm
Steering
▼ 1.1% worse
27.7 faults / 100 tests
Year avg: 27.4 / 100 tests
Visibility
▲ 0.0% better
25.2 faults / 100 tests
Year avg: 25.2 / 100 tests
Lights & Electrics
▲ 46.3% better
35.2 faults / 100 tests
Year avg: 65.5 / 100 tests
Wheels & Suspension
▼ 22.7% worse
307.5 faults / 100 tests
Year avg: 250.7 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A suspension pin, bush, joint or bearing: excessively worn
  • A suspension component: excessively damaged or corroded
  • A wheel bearing: with excessive play
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 47.5% better
44.0 faults / 100 tests
Year avg: 83.8 / 100 tests
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
Equipment
▲ 77.4% better
5.0 faults / 100 tests
Year avg: 22.1 / 100 tests
Other
▲ 16.6% better
50.9 faults / 100 tests
Year avg: 61.0 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users

Fault rate by mileage segment

Model    Year average
0 535 0–31,000 mi 31,000–62,000 62,000–93,000 93,000–124,000 124,000+
* Metric: faults per 100 tests.

Most common faults (Top 10)

Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 125
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 100
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 76
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 54
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 53
A wheel bearing: with excessive play
ADVISORY
Occurrences: 41
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 30
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 30
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 29
Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
ADVISORY
Occurrences: 28

Serious faults (Top 10)

A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 27
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 12
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 9
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 8
Exhaust system has a major leak or is insecure
FAIL
Occurrences: 8
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 8
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 7
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 7
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 7
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 6