MG 6 2015: MOT failure rate for its age

32.8% of 2,800 MOT tests of the MG 6 first registered in 2015 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 100.7 (95% CI 94.2–107.2; 100 = normal for this model at that age): the 2015 build year is no different from other years of the same model at the same age. This is a rough estimate from a smaller sample.

MG 6 built in 2015 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	32.8	%	all ages tested	2019–2024	2800
Index against this model at the same age (95% CI 94.2–107.2)	100.7	index	100 = normal for this model at that age	2019–2024	2800
Rank among this model's 6 build years	5	of 6	1 = fails least for its age	2019–2024	2800
Tested in 2024	396	tests	median 70,379 miles	2024	396

Built 2015 against MG 6 normal for the age: first-time MOT failure share at each age, age 4: 30% vs 32.7%; age 5: 29.1% vs 27.3%; age 6: 32.3% vs 31.3%; age 7: 34.5% vs 33%; age 8: 37.4% vs 34.3%; age 9: 34.6% vs 38%. Axis from 0% to 40%. DVSA MOT bulk data, 2019–2024.

Check a 2015 MG 6 by registration · All MG 6 MOT statistics · Download the build-year table (CSV)

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).

How does the 2015 MG 6 fail at each age?

Cars built in 2015 were tested at ages 4 to 9 between 2019 and 2024. Each row compares their first-time failure share with what this model normally shows at that age, after allowing for the overall failure level of each test year.

MG 6 built 2015: first-time MOT failure by age, against the model's normal rate at that age (2019–2024)
Age	Tests	Failed, %	95% interval	Normal for this model at that age, %	Index (100 = normal)
4	526	30	26.3–34.1	32.7	92
5	477 (rough estimate)	29.1	25.2–33.4	27.3	106.6
6	496 (rough estimate)	32.3	28.3–36.5	31.3	103.2
7	466 (rough estimate)	34.5	30.4–39	33	104.7
8	439 (rough estimate)	37.4	33–42	34.3	108.8
9	396 (rough estimate)	34.6	30.1–39.4	38	91

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,800 (initial tests) · Method: normal rate = this model's first-time failure share at that age across its build years (cells of 400+ tests), adjusted for each test year's overall level; cells of 30+ tests, under 500 marked rough · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

What fails most on the 2015 MG 6?

The most common failure group on cars built in 2015 is lamps, reflectors and electrical equipment: 19.6 items per 100 first tests, against 25.9 across all build years of the MG 6. These counts are not age-adjusted: cars built in 2015 were tested at ages 4 to 9.

Failure items per 100 first tests, MG 6 built 2015 against the MG 6 in all build years (2019–2024, not age-adjusted)
Failure group	Built 2015, per 100	All build years, per 100	Items
Lamps, reflectors and electrical equipment	19.6	25.9	549
Brakes	18	22.4	503
Tyres	12.9	13	360
Visibility	7.7	8.1	216
Suspension	6.3	15.6	177

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,800 (initial tests of this build year) · Method: failure items grouped by DVSA's top-level defect groups, per 100 initial tests; groups with 30+ items · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

How does 2015 compare with the years around it?

Among the 6 published build years of the MG 6, 2015 ranks 5 (1 = fails least for its age). 2014: index 99.3. 2016: index 90.4.

MG 6 build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2011	101.0	92.5–109.6	no different (rough estimate)	1,322
2012	98.7	93.6–103.9	no different (rough estimate)	3,671
2013	94.4	86.2–102.5	no different (rough estimate)	1,462
2014	99.3	92.9–105.6	no different (rough estimate)	2,780
2015	100.7	94.2–107.2	no different (rough estimate)	2,800
2016	90.4	82.1–98.7	better (rough estimate)	1,642

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 13,677 (initial tests) · Method: observed failures against those expected for the same model at the same ages, test-year level adjusted; verdict follows the printed one-decimal bound · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

How to cite this page

MOT Risk Index (2026). MG 6 2015 MOT statistics (data release dvsa-2024-v2; full dataset motriskindex-families-2024-v5, DOI 10.5281/zenodo.22975051), updated 30 September 2026. motriskindex.co.uk/cars/mg-6/2015/

How every figure is calculated: methodology. Age, test year and build year are tied together (age = test year − build year), so the test-year level is taken as observed, not estimated.

Other pages for this model

MG 6 2011 · MG 6 2012 · MG 6 2013 · MG 6 2014 · MG 6 2016 · MG 6 by postcode area · MG 6 body, chassis and structure failures · MG 6 brakes failures · MG 6 vehicle identification failures · MG 6 lamps, reflectors and electrics failures · MG 6 noise, emissions and leaks failures · MG 6 road wheels failures · MG 6 seat belts and airbags failures · MG 6 steering failures · MG 6 suspension failures · MG 6 tyres failures · MG 6 visibility failures