30 models · 5,787,854 MOT tests

Mercedes-Benz reliability

Mercedes-Benz cars fail 22.3% of first MOT tests (all cars: 28.4%), 18% fewer MOT fails than the average car its age and mileage. The most reliable Mercedes-Benz on MOT results is the Mercedes-Benz GT; the least is the Mercedes-Benz Citan.

Ranked

Every Mercedes-Benz model, most reliable first

Ranked against cars of the same age and mileage, so a new model and an old one are judged fairly.

Mercedes-Benz models ranked by MOT reliability
#	Model	Type	Tests	Fail rate	Verdict
1	Mercedes-Benz GT1997–2021 cars	Sports car and convertible	5,826	5.8%	Better than average
2	Mercedes-Benz SL1996–2021 cars	Sports car and convertible	73,297	15.3%	Better than average
3	Mercedes-Benz CL-Class1996–2021 cars	Luxury car	12,416	20.8%	Better than average
4	Mercedes-Benz S-Class1996–2021 cars	Luxury car	107,751	15.8%	Better than average
5	Mercedes-Benz GL-Class1998–2021 cars	Large SUV	12,105	17.8%	Better than average
6	Mercedes-Benz GLE2013–2021 cars	Large SUV	96,197	10.6%	Better than average
7	Mercedes-Benz G-Class1996–2021 cars	Large SUV	6,936	13.7%	Better than average
8	Mercedes-Benz GLS2014–2021 cars	Large SUV	8,444	11.1%	Better than average
9	Mercedes-Benz R-Class2005–2013 cars	Large SUV	9,353	27.2%	Better than average
10	Mercedes-Benz GLC2010–2021 cars	Family SUV	248,204	11.3%	Better than average
11	Mercedes-Benz M-Class1998–2018 cars	Large SUV	136,678	27%	Better than average
12	Mercedes-Benz E-Class1996–2021 cars	Executive car	870,398	21%	Better than average
13	Mercedes-Benz CLS2000–2021 cars	Executive car	87,218	24%	Better than average
14	Mercedes-Benz GLA2014–2021 cars	Small SUV	256,180	13.4%	Better than average
15	Mercedes-Benz GLB2020–2021 cars	Family SUV	7,026	9.7%	Better than average
16	Mercedes-Benz V-Class1997–2021 cars	MPV and people carrier	43,970	17%	Better than average
17	Mercedes-Benz SLK1996–2020 cars	Sports car and convertible	216,164	25.9%	Better than average
18	Mercedes-Benz EQC2019–2021 cars	Family SUV	8,235	10.4%	Better than average
19	Mercedes-Benz C-Class1996–2021 cars	Executive car	1,367,192	24%	Better than average
20	Mercedes-Benz SLC1999–2021 cars	Sports car and convertible	32,984	11.8%	Better than average
21	Mercedes-Benz Viano2001–2021 cars	MPV and people carrier	20,348	33.6%	About average
22	Mercedes-Benz CLA2013–2021 cars	Family hatchback	189,790	17.7%	About average
23	Mercedes-Benz Sprinter1996–2021 cars	Van	76,326	29.2%	About average
24	Mercedes-Benz CLK1997–2016 cars	Executive car	113,867	36.7%	About average
25	Mercedes-Benz A-Class1998–2021 cars	Family hatchback	1,140,508	20.6%	About average
26	Mercedes-Benz B-Class2005–2021 cars	Family hatchback	243,079	26.5%	About average
27	Mercedes-Benz X-Class2017–2020 cars	Pickup	14,714	17.1%	About average
28	Mercedes-Benz Vito1996–2021 cars	Van	286,460	33.7%	About average
29	Mercedes-Benz CLC1999–2019 cars	Executive car	31,460	42.8%	About average
30	Mercedes-Benz Citan2013–2021 cars	Van	64,728	37.2%	Well below average

Compare across every brand in the UK MOT Reliability Index.

Questions

Mercedes-Benz reliability questions

Are Mercedes-Benz cars reliable?

Mercedes-Benz cars fail 22.3% of first MOT tests, 18% fewer MOT fails than the average car its age and mileage, across 5,787,854 UK MOT tests from 2022 to 2024.

What is the most reliable Mercedes-Benz?

On MOT results, the Mercedes-Benz GT: it fails 5.8% of first tests, 55% fewer MOT fails than the average car its age.

Which Mercedes-Benz should I avoid?

The Mercedes-Benz Citan has the weakest MOT record of the Mercedes-Benz range (52% more MOT fails than the average car its age). Check any used one's MOT history before you buy.

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