Reliability Report · Multi-Source Data

Jaguar XJ Reliability

The Jaguar XJ (current generation) scores 88/100 on our composite reliability index — excellent territory — drawn from DVSA, NHTSA data.

Composite Score
88
/ 100
Excellent
Sources: DVSA · NHTSA · latest 2026
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Reliability data covers the model. A VIN history report covers the exact Jaguar XJ you're looking at — accident and write-off records, mileage rollback, outstanding finance and theft checks.

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Reliability by Source

Each independent organization measures reliability differently. TÜV reports inspection defect rates by age band. ADAC reports pan-European breakdowns per 1,000 vehicles. NHTSA aggregates US consumer complaints. DVSA MOT data is the UK fleet's annual safety inspection — every car 3+ years old. Lower variance across sources = higher confidence in the composite.

NHTSA (US Complaints)
Model years 2003–2020 · 2026 report · n=14
14 complaints across 2 sampled year(s); resolved model="XJ (SWB)"
View source ↗
93
/ 100
DVSA MOT (UK Inspections)
Model years 2004–2021 · 2024 report · n=33052
33,052 UK MOT tests · overall 16.3% fail rate vs UK fleet baseline
View source ↗
89
/ 100
DVSA MOT (UK Inspections)
Model years 2003–2020 · 2023 report · n=18414
18,414 UK MOT tests · overall 20.3% fail rate vs UK fleet baseline
View source ↗
83
/ 100

UK MOT Reliability Detail

Based on 33,052 MOT tests in the UK during the 2024 reporting period. Score for each age band reflects this model's fail rate vs the UK-fleet baseline fail rate at the same age — a generation-aware metric.

Age 3–5 yrs
84
7.2% fail vs 10.9% fleet
1,312 tests
Age 6–9 yrs
92
8.5% fail vs 19.2% fleet
7,991 tests
Age 10–14 yrs
90
16.1% fail vs 32.1% fleet
12,562 tests
Age 15–20 yrs
86
23.0% fail vs 38.8% fleet
11,187 tests

Most Common MOT Failure Categories

#1
Ball joint dust cover
7,973
40.8%
#2
Registration plate lamp(s)
3,529
18.1%
#3
Track rod end
2,873
14.7%
#4
Condition
2,686
13.8%
#5
Linkage ball joint dust cover
2,464
12.6%

Categories ranked across all MOT tests of this model in the UK during the 2024 period. "Condition" covers cosmetic / wear issues; suspension and braking dominate the rest.

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