BMW 635 MOT pass rate: 80.8% (1,777 tests, 2025)

The BMW 635 passed 80.8% of its 1,777 MOT tests in 2025 — 3.3 points above the UK average of 77.5%. The median tested example was 17 years old with 123,380 miles on the clock.

80.8%Pass rate (2025)

1,777MOT tests analysed

123,380 miMedian mileage at test

17 yrsMedian age at test

How the 635 compares

BMW 635

80.8%

UK average (all Class 4 vehicles)

77.5% across 33.1 million tests

BMW average (all models)

83.0%

What fails most on the BMW 635

Across failed and rectified tests in 2025, these vehicle systems produced the most defects on the 635:

#	System	Defects recorded	Share
1	Suspension	245	38.0%
2	Brakes	166	25.8%
3	Tyres	131	20.3%
4	Lamps, reflectors and electrical equipment	102	15.8%

Pre-MOT checklist for 635 owners

Based on the failure profile above, ten minutes with a torch before your test removes the most likely fail items:

Bounce each corner and listen for clonks over speed bumps — suspension is this model’s (and the UK’s) top failure system
Feel for a spongy pedal or pulling to one side; check pad wear through the wheel spokes if visible
Check tread with the 20p test and inspect sidewalls for cracking — tyres close to the limit are the country’s most common advisory
Walk round with all lights on: one blown bulb is the most avoidable fail there is

Check the engine before the tester does

A stored fault code with the engine light on is an automatic Major defect. Scan and clear resolved faults before booking.

Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
Autel UK testersAutel professional-grade diagnostic testers

635 pass rate by registration year

Registration year	Tests	Pass rate	Vs same-age	Median mileage
2008	1,501	78.4%	+13.3 pts	126,382

Check a specific 635 before you buy

Pass rates describe the model; they can’t tell you about the one car you’re looking at. Run its plate through our free MOT history check to see its personal record of failures, advisories and mileage readings.

Other BMW models

3 Series77.7% pass rate · 346,191 tests 11883.0% pass rate · 151,434 tests X185.0% pass rate · 105,826 tests 11678.5% pass rate · 100,371 tests X383.1% pass rate · 88,755 tests 1 Series81.7% pass rate · 77,207 tests X582.4% pass rate · 76,168 tests 5 Series85.7% pass rate · 71,923 tests

FAQs

What is the MOT pass rate for a BMW 635?

In 2025, 80.8% of 1,777 first MOT tests on the BMW 635 were passes (UK average: 77.5%). Data: DVSA anonymised MOT results.

What does the 635 fail its MOT on most?

The biggest defect group is suspension (38.0% of its recorded defects), followed by brakes.

Is the BMW 635 reliable?

MOT pass rate is one lens on durability: at 80.8% it performs above the national average at a median age of 17 years and 123,380 miles. Always check the individual car's history too.

Source: DVSA Anonymised MOT tests and results, 2025 extract (Class 4 initial tests only; retests excluded). Contains public sector information licensed under the Open Government Licence v3.0. Figures rounded to one decimal place.