Mercedes-Benz E-Class (W212)

The fourth-generation Mercedes-Benz E-Class (W212), produced from 2009 to 2016, represented a major return to the brand’s traditional values of over-engineered build quality and exceptional reliability. Moving away from the softer styling of its predecessor, the W212 introduced a more angular, muscular design language and a level of structural rigidity that establishment it as one of the most durable executive cars ever produced. In the UK, it has been a dominant force in the fleet, family, and private hire markets, prized for its immense interior space, legendary seat comfort, and a sense of "hewn-from-granite" solidity. Reliability for the W212 is generally world-class, but even this high-quality machine has specific UK-centric issues that used buyers must screen for. The most notorious problem is structural corrosion of the rear subframe, which can rot through from the inside out; fortunately, Mercedes-Benz UK has been proactive in replacing these for free under an extended goodwill warranty if the vehicle has a decent history. Early production models with the OM651 diesel engine also faced a major recall for failing Piezo injectors, and high-mileage examples should be checked for timing chain rattle on cold starts. Additionally, higher-spec models with Airmatic air suspension require regular checks to ensure the bags remain watertight as the car reaches 10+ years of age. When buying a used W212 in the UK, the focus should be on maintenance history and chassis condition. Prospective owners should verify that the rear subframe has been inspected or replaced and demand evidence of regular automatic transmission fluid changes (every 5 years or 75,000 miles). For the best ownership experience, the 2013-onwards "facelift" models are highly recommended, as they received significantly more refined engines, updated interior materials, and a more modern front-end design featuring full LED lighting. A well-maintained W212, especially in the robust E220 or E350 CDI forms, remains one of the most reliable and prestigious ways to experience modern Mercedes luxury.