Reliability Report · Multi-Source Data

BMW 635 Reliability

The BMW 635 (current generation) scores 87/100 on our composite reliability index — excellent territory — drawn from DVSA data.

Composite Score
87
/ 100
Excellent
Sources: DVSA · latest 2024
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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.

DVSA MOT (UK Inspections)
Model years 2004–2014 · 2024 report · n=3188
3,188 UK MOT tests · overall 18.5% fail rate vs UK fleet baseline
View source ↗
90
/ 100
DVSA MOT (UK Inspections)
Model years 2003–2013 · 2023 report · n=1571
1,571 UK MOT tests · overall 22.7% fail rate vs UK fleet baseline
View source ↗
84
/ 100

UK MOT Reliability Detail

Based on 3,188 MOT tests in the UK during the 2024reporting 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 10–14 yrs
89
17.1% fail vs 32.1% fleet
885 tests
Age 15–20 yrs
90
19.1% fail vs 38.8% fleet
2,303 tests

Most Common MOT Failure Categories

#1
Individual direction indicators
1,306
36.5%
#2
Ball joint
692
19.4%
#3
Tread depth
682
19.1%
#4
Shock absorbers
494
13.8%
#5
Headlamp
402
11.2%

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

Compare Against Alternatives

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