MoT Data for Swansea

Swansea is fairly typical of coastal areas, with quite a lot of red numbers in the tables below. These indicate below average MoT pass rates. Every number in the common causes for failure table is red and almost every number in the year of registration table is red too.

The best performing manufacturer is Porsche, followed by Lexus and Triumph - but few were tested. The best performing maker with more than 1000 cars tested is Toyota, with a pass rate of 70.2 per cent.

Most common reasons for MoT failure

Test Item	Failure Rate	National Failure Rate	Relative Rate
Suspension	10.4%	9.6%	+9%
Lamps, reflectors and electrical equipment	10.0%	11.9%	−16%
Brakes	8.1%	7.7%	+6%
Tyres	6.5%	5.8%	+12%
Visibility	5.2%	5.3%	−2%
Body, chassis, structure	3.7%	4.1%	−10%
Noise, emissions and leaks	3.2%	3.6%	−10%
Steering	2.1%	1.9%	+10%
Seat belts and supplementary restraint systems	1.4%	1.3%	+8%

MoT failure rates by year of registration

Year of Registration	Tests	Failure Rate	National Failure Rate	Relative Rate
2021	85	17.6%	17.5%	+1%
2020	128	20.3%	16.7%	+21%
2019	1,139	10.6%	10.3%	+4%
2018	27,457	12.8%	11.7%	+10%
2017	27,089	14.2%	13.2%	+8%
2016	30,389	17.3%	16.5%	+5%
2015	30,196	21.4%	19.5%	+10%
2014	29,857	25.7%	23.0%	+11%
2013	26,380	29.9%	27.2%	+10%
2012	22,035	33.2%	30.5%	+9%
2011	19,548	37.7%	33.4%	+13%
2010	20,090	40.9%	36.8%	+11%
2009	18,243	43.2%	39.1%	+11%
2008	17,007	46.5%	41.5%	+12%
2007	16,704	48.2%	42.6%	+13%
2006	13,333	49.1%	43.9%	+12%
2005	10,485	49.9%	44.9%	+11%
2004	8,237	51.4%	45.7%	+13%
2003	6,347	50.1%	45.6%	+10%
2002	4,575	51.3%	45.2%	+13%
2001	2,689	49.5%	43.9%	+13%
2000	1,677	47.5%	42.5%	+12%
1999	1,258	45.9%	40.8%	+13%
1998	877	43.9%	38.5%	+14%
1997	596	40.6%	37.5%	+8%
1996	384	38.0%	36.5%	+4%
1995	319	41.7%	35.3%	+18%
1994	224	35.7%	34.4%	+4%
1993	250	38.4%	34.7%	+11%
1992	203	42.4%	32.9%	+29%
1991	216	38.0%	32.3%	+17%
1990	200	35.0%	30.9%	+13%
1989	199	32.2%	29.6%	+9%
1988	134	30.6%	30.2%	+1%
1987	97	28.9%	29.5%	−2%
1986	90	26.7%	28.9%	−8%
1985	86	32.6%	28.3%	+15%
1984	79	22.8%	28.1%	−19%
1983	61	24.6%	27.5%	−10%
1982	50	30.0%	27.4%	+10%
1980	50	14.0%	22.9%	−39%

MoT failure rates by make

Make	Tests	Failure Rate	National Failure Rate	Relative Rate
Bentley	126	11.9%	10.3%	+15%
Porsche	780	18.8%	14.9%	+27%
BMW	15,968	24.6%	22.9%	+7%
Skoda	8,402	24.7%	23.5%	+5%
Abarth	171	25.1%	20.8%	+21%
Lexus	509	25.9%	18.7%	+39%
Dacia	5,064	27.0%	24.7%	+9%
Audi	16,290	27.1%	22.3%	+21%
Mercedes-Benz	10,728	27.2%	22.3%	+22%
MINI	6,745	27.4%	25.5%	+8%
Toyota	17,721	27.4%	27.1%	+1%
Hyundai	10,107	27.8%	26.1%	+7%
Volvo	6,999	28.3%	28.9%	−2%
MG	1,377	28.4%	28.9%	−2%
Suzuki	7,707	28.7%	27.5%	+5%
Kia	13,030	29.4%	26.5%	+11%
Honda	8,438	29.9%	28.2%	+6%
SEAT	7,389	30.2%	27.1%	+11%
Jaguar	3,450	30.2%	23.9%	+26%
Subaru	570	30.4%	27.8%	+9%
Land Rover	9,940	30.4%	25.2%	+21%
Mazda	6,339	30.7%	28.2%	+9%
Mitsubishi	6,030	31.9%	28.7%	+11%
Nissan	16,512	32.1%	29.5%	+9%
Jeep	759	32.1%	26.1%	+23%
Volkswagen	38,718	32.7%	29.0%	+13%
smart	128	32.8%	31.9%	+3%
SsangYong	782	34.7%	30.6%	+13%
FIAT	13,052	34.7%	32.2%	+8%
Ford	61,253	34.7%	31.5%	+10%
Isuzu	1,387	34.8%	40.7%	−15%
Peugeot	19,472	35.8%	34.0%	+5%
Alfa Romeo	661	36.6%	33.7%	+9%
Citroen	16,055	37.5%	34.2%	+10%
Vauxhall	37,625	37.6%	34.2%	+10%
DS	2,773	39.0%	36.3%	+7%
Chrysler	216	41.2%	41.2%	−0%
Renault	21,847	42.1%	38.6%	+9%
SAAB	778	43.8%	39.5%	+11%
Daihatsu	503	43.9%	36.3%	+21%
Rover	447	44.7%	42.5%	+5%
Chevrolet	1,168	50.7%	45.1%	+12%
Talbot	125	51.2%	47.1%	+9%