Mercedes has always prided itself on producing technologically advanced vehicles that are built to last for decades. While they certainly are advanced, not every Mercedes model has proven to be as reliable as it should be. The juggling act between creating cutting-edge vehicles that are still reliable is always a tricky one, but thanks to a massive development budget and constant refinement, the latest Mercedes models are proving to be solid performers all-round.
We went through the latest J.D. Power survey to find out which are the top five most reliable Mercedes models currently on sale. The results are based on verified owner reviews covering three years of data. Some results listed here will include a mix of facelifted or updated variants if a major change took place during the assessment period. We have sorted our top five list via the quality and reliability scores.
1. Mercedes-Benz C-Class
- Total Score: 81/100
- Quality & Reliability Score: 84/100
Despite a major redesign in 2022, the 2023 C-Class has emerged as the brand’s most stable performer as the initial manufacturing kinks were smoothed out. This is a good sign for the future as much of the technology that debuted in the C-Class is also incorporated into other Mercedes models. Positive comments included an appreciation for the mini S-Class interior aesthetic and the relaxed driving feel which scored an 82/100.
The complicated initial setup of the MBUX infotainment system and sensitive brake pedal modulation where some of the dislikes. The C300 model with the 2.0-liter turbocharged four-cylinder engine is considered to offer the most reliable performance by owners, and while no serious issues have affected the 4Matic all-wheel-drive variants, the rear-wheel-drive versions are slightly less complex.
2. Mercedes-Benz GLE
- Total Score: 79/100
- Quality & Reliability Score: 80/100
The GLE remains a solid SUV offering, scoring the highest in terms of quality and reliability than any other Mercedes SUV. Thhat is impressive considering the hiogh-tech nature of the GLE, and owners appreciated the accurate voice command functionality (not a given with voice operated systems) and the customizable digital dashboard. However, the large 21-inch wheels do create excessive road noise on certain surfaces, and can also make the ride brittle over bumps.
The GLE450 was praised for its smooth 3.0-liter six-cylinder engine, and it had fewer complaints overall than the smaller GLE 350 which is fitted with the 2.0-liter four-cylinder powerplant.
3. Mercedes-Benz E-Class
- Total Score: 79/100
- Quality & Reliability Score: 80/100
Being three years in the making, these scores reflect owner experience of the final year of the W213 generation E-Class. It benefited from years of refinement before the 2024 redesign arrived and as a result scored high across the reliability, and driving experience segments. Positive points included exceptionally comfortable seats, and a more intuitive cabin design than the latest models.
The limited trunk space for such a large sedan and some glitches with the Apple CarPlay wireless connection were common complaints. The solid turbocharged 2.0-liter four-cylinder engine in the E350 was considered to be the most reliable of the powerplants on offer.
4. Mercedes-Benz GLS
- Total Score: 75/100
- Quality & Reliability Score: 78/100
The GLS is the brand’s highest-rated large SUV, though its score is dampened by complex air suspension components that can require early attention. This is not unique to the Mercedes brand, but it is worth keeping in mind when looking at used luxury vehicles. The GLS was lauded for its S-Class levels of interior luxury and quiet cabin.
Space for smaller items was inadequate for some owners, and the slow-moving motorized rear seats were another source of irritation for those who used that feature regularly. A low resale value score of 67/100 pulled down the overall results, but this does make the GLS a good value second hand purchase. The GLS 580 with its big V8 engine offers serious performance, but the GLS 450 with its inline-six engine is the better choice for its lower maintenance costs.
5. Mercedes-Benz GLC
- Total Score: 77/100
- Quality & Reliability Score: 74/100
The 2023 GLC measured in this survey represents the previous X253 body style, but the mature tech and years of updates incorporated into this last model years show in the higher quality and reliability score compared to the newer GLC. It has also aged well, being praised for its nimble handling and rattle-free interior.
The downsides of an older design are an infotainment setup that looks dated compared to the newest models, and it has less cargo room than most of its major rivals. For the best chance of a low maintenance ownership experience, the GLC300 with its turbocharged 2.0-liter engine and tried-and-tested nine-speed automatic transmission is a great bet.
Reliability is Relative
While luxury vehicles tend to trail less complex vehicles in the reliability stakes, the J.D. Power study found an industry-wide decline in dependability, with premium brands averaging 217 problems per 100 vehicles (PP100). Mercedes-Benz vehicles overall performed below the luxury average with a score of 235 PP100. This is better than Audi’s 244 PP100 score, but below BMW’s 198 PP100. Lexus was the best overall with a 151 PP100 result. So, while these five top performing Mercedes models represent your best chance of a trouble-free ownership experience with this brand, there are more reliable luxury alternatives out there.
