According to the worldwide industry average with respect to the UAE market, Mercedes-Benz has a reliability score of 3.0 out of 5.0 points and is rated as Average. Out of 32 different car brands, Mercedes-Benz ranks 27th, and the scores are based on 345 unique vehicle models. Although Mercedes-Benz isn’t exactly a reflection of reliability, it’s not the worst either.It’s worth knowing that the most unreliable vehicles come from luxury car manufacturers. For several years, Alfa Romeo was frequently rated as the top most unreliable brand in the car market, but the trend has shifted since then, with Maserati and Bentley taking its place.