Mercedes-Benz A-Class MOT pass rate and common failures

76% of Mercedes-Benz A-Class MOTs passed first time, above the 74% for all cars at the same ages.

76%passed first time (cars its age: 74%)
1.9mMercedes-Benz A-Class MOTs counted since May 2018
5,500typical miles a year at 10 years old

First-time pass rate by year registered

Each year's Mercedes-Benz A-Classs against every car first registered the same year, at the same ages. Newer cars have only had their first few MOTs, so they look better. Years with fewer than 5,000 MOTs are left out.

Share of MOTs passed first time, by year first registered. All cars: every car first registered that year, at the same ages.
Registered	A-Class	All cars	MOTs
2019	86%	85%	44k
2018	85%	83%	237k
2017	83%	83%	289k
2016	81%	80%	300k
2015	79%	78%	229k
2014	76%	74%	198k
2013	74%	71%	125k
2012	71%	68%	43k
2011	71%	65%	46k
2010	67%	62%	53k
2009	65%	61%	61k
2008	62%	59%	62k
2007	61%	58%	59k
2006	58%	56%	49k
2005	58%	56%	36k
2004	52%	55%	19k
2003	52%	55%	23k
2002	50%	55%	17k
2001	51%	56%	12k
2000	50%	58%	6k

Compare two years of the A-Class, age for age.

First-time pass rate by age

Share of MOTs at each age that passed first time. Ages with fewer than 10,000 Mercedes-Benz A-Class MOTs are left out.

Commonest reasons for failure

Coil spring fractured or brokenOther cars its age: 2.12.6
Tyre tread below the legal limitOther cars its age: 2.42.4
Windscreen washer gives too little liquidOther cars its age: 1.21.9
Brake pads less than 1.5mm thickOther cars its age: 1.91.8
Tyre cut deep enough to reach the plyOther cars its age: 1.21.5
Supplementary restraint system warning lamp indicates a faultOther cars its age: 0.41.5
Stop lamp (brake light) not workingOther cars its age: 1.81.4
Tyre has ply or cords exposedOther cars its age: 1.21.4

Out of every 100 Mercedes-Benz A-Class MOTs, against other cars at the same ages.

Where it comes up more than other cars its age

Supplementary restraint system warning lamp indicates a faultFail. Other cars its age: 0.41.5
Brake hose slightly deterioratedAdvisory. Other cars its age: 0.21.0
Brake pad(s) worn down to wear indicatorFail. Other cars its age: 0.20.4
Windscreen washer jets misaligned and not providing sufficient fluid to the windscreenFail. Other cars its age: 0.10.3
Side repeater light intensity significantly reducedFail. Other cars its age: 0.00.1
Fuel hose deterioratedAdvisory. Other cars its age: 0.00.0

Out of every 100 Mercedes-Benz A-Class MOTs. Only items noted well above other cars of the same ages.

Miles a year

Typical miles a year between one MOT and the next: 6,500 at 3 years old, 2,500 at 20. Rounded to the nearest 1,000.

Counted from DVSA records of 286,058,652 MOTs, 20 May 2018 to 18 October 2026. A test and its retests count as one MOT, and a fail put right at the test counts as a first-time fail, as the DVSA counts it. About Mercedes-Benz A-Classs in general, not a prediction for any one car. Spotted a mistake? Email fuzzyreguk@gmail.com.

Check a Mercedes-Benz A-Class's MOT history

Every test and advisory, free, from the registration.