TheMercedes Benz C class is one of the most reliable models in the Mercedes Benz line-up. The Mercedes Benz C class can easily last for more than 10 OverallReliability. NA. We expect the 2024 C-Class to be much less reliable than other new cars. This prediction is based on limited data from C-Class, plus the Mercedes-Benz brand scores. The Eachrear wheel is guided by four elements. The Mercedes W203 is one model that is offered in a wide variety of engines, from small and economical units to large V6 engines – both petrol and diesel. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. NA We expect the 2024 C-Class to be much less reliable than other new cars. This prediction is based on limited data from C-Class, plus the Mercedes-Benz brand scores. The 2002 Mercedes-Benz C l8X5L5.