MOT Stats

Porsche 928

Year	Tests	Pass rate	Most common fail reason
1978	2	50%	Emissions levels exceed default limits.
1979	6	83.33%	Headlamp aim outwith limits.
1980	6	100%	n/a
1981	4	100%	n/a
1982	12	75%	Windscreen washers not providing sufficient fluid.
1983	27	74.07%	Headlamp aim outwith limits.
1984	51	72.55%	Windscreen washers not providing sufficient fluid.
1985	44	72.73%	Windscreen washers not providing sufficient fluid.
1986	68	72.06%	Windscreen washers not providing sufficient fluid.
1987	62	83.87%	Emissions levels exceed default limits.
1988	94	82.98%	Tyre with a lump, bulge or tear.
1989	99	81.82%	Emissions levels exceed default limits.
1990	65	78.46%	Headlamp aim outwith limits.
1991	59	72.88%	Windscreen washers not providing sufficient fluid.
1992	33	81.82%	Windscreen washers not providing sufficient fluid.
1993	23	65.22%	Emissions lambda coefficient outwith limits.
1994	31	70.97%	Emissions levels exceed default limits.
1995	28	75%	Emissions lambda coefficient outwith limits.
1996	2	100%	n/a
1997	2	100%	n/a
1998	2	100%	n/a
1999	1	100%	n/a
2002	1	0%	Electrical wiring insecure.
2003	1	100%	n/a
2005	3	100%	n/a
2006	1	100%	n/a
2008	1	100%	n/a
2009	1	0%	Fog lamp inoperative or rear fog lamp missing.
2012	1	100%	n/a
2013	1	100%	n/a
2015	2	100%	n/a
2016	2	50%	Fuel system leaking, or missing or ineffective filler cap.
2017	2	100%	n/a
2018	1	100%	n/a
2019	1	100%	n/a
2020	2	50%	Horn not working.

Tests: 741

Average Porsche 928 pass rate: 77.73%

Most common fail reasons

#	Reason	Fail code	Category	%
1	Windscreen washers not providing sufficient fluid.	3.5(a)	Major	26%
2	Headlamp aim outwith limits.	4.1.2(a)	Major	22%
3	Fog lamp inoperative or rear fog lamp missing.	4.5.1(a)(ii)	Major	16%
4	Emissions levels exceed default limits.	8.2.1.2(b)	Major	15%
5	Emissions lambda coefficient outwith limits.	8.2.1.2(c)	Major	10%
6	Stop lamp missing or inoperative.	4.3.1(a)(ii)	Major	9%
7	Horn not working.	7.7(a)	Major	6%
8	Parking brake efficiency below minimum requirement.	1.4.2(a)(i)	Major	5%
9	Fuel system leaking, or missing or ineffective filler cap.	6.1.3(b)(i)	Major	5%
10	Electrical wiring insecure.	4.11(a)(ii)	Major	5%

Tests date range:

10th February 2023 to 9th February 2024

Contains public sector information licensed under the Open Government Licence v3