MOT Stats

Mercedes-Benz 420

Year	Tests	Pass rate	Most common fail reason
1973	1	100%	n/a
1974	2	100%	n/a
1975	1	0%	Windscreen washers not providing sufficient fluid.
1977	1	100%	n/a
1979	2	100%	n/a
1980	2	100%	n/a
1982	1	100%	n/a
1984	1	100%	n/a
1986	74	85.14%	Suspension joint dust cover missing or ineffective.
1987	143	76.92%	Windscreen washers not providing sufficient fluid.
1988	147	82.99%	Windscreen washers not providing sufficient fluid.
1989	110	83.64%	Windscreen washers not providing sufficient fluid.
1990	26	73.08%	Windscreen washers not providing sufficient fluid.
1991	17	82.35%	Emissions levels exceed default limits.
1992	7	71.43%	Headlamp aim outwith limits.
1993	1	100%	n/a
1997	1	100%	n/a
1998	3	100%	n/a
1999	1	100%	n/a
2000	2	50%	Tyre with a lump, bulge or tear.
2004	1	100%	n/a
2007	5	60%	Anti-lock braking system warning device shows system malfunction.
2008	5	80%	SRS malfunction indicator lamp indicates a system malfunction.
2011	1	100%	n/a
2015	1	0%	Fog lamp inoperative or rear fog lamp missing.
2020	1	100%	n/a

Tests: 557

Average Mercedes-Benz 420 pass rate: 81.15%

Most common fail reasons

#	Reason	Fail code	Category	%
1	Windscreen washers not providing sufficient fluid.	3.5(a)	Major	25%
2	Headlamp aim outwith limits.	4.1.2(a)	Major	14%
3	Wiper blade missing or not clearing the windscreen.	3.4(b)(ii)	Major	11%
4	Excessive corrosion to, or weakened structure near any suspension mounting.	5.3.6(a)(i)	Major	11%
5	Suspension joint dust cover missing or ineffective.	5.3.4(b)(ii)	Major	10%
6	Emissions levels exceed default limits.	8.2.1.2(b)	Major	10%
7	Tyre with a lump, bulge or tear.	5.2.3(d)(ii)	Dangerous	9%
8	Direction indicator lamp missing or inoperative.	4.4.1(a)(ii)	Major	8%
9	Fog lamp inoperative or rear fog lamp missing.	4.5.1(a)(ii)	Major	8%
10	Binding brake.	1.2.1(f)	Major	8%

Tests date range:

10th February 2023 to 9th February 2024

Contains public sector information licensed under the Open Government Licence v3