The Mercedes-Benz E-Class (W211 sedan, S211 wagon) is a pivotal generation for the star brand. Launched in 2002 to replace the W210, it marked a major technological leap with the introduction of electro-hydraulic SBC (Sensotronic Brake Control) braking and Airmatic air suspension. However, Phase 1 (2002-2006) was marred by serious electronic reliability issues and costly SBC system failures. The Phase 2 facelift (June 2006-2009) dramatically corrected these issues: SBC was abandoned in favor of conventional braking, electronics were redesigned, and perceived quality improved. Today, a W211 Phase 2 is considered one of the most reliable executive cars of its era, while Phase 1 remains a risky purchase requiring a clear service history.
The Mercedes E-Class W211 is a car with two faces. Phase 1 models (2002-2006) should be approached with extreme caution due to the SBC system and electronic bugs; they are to be avoided unless the service history is perfect and known defects (SBC, Valeo radiator) have been definitively resolved. In contrast, Phase 2 (2006-2009) is a master purchase. Freed from SBC and made more reliable, it offers very high-level road performance. Prioritize the indestructible E220 CDI or E320 CDI (L6) for high-mileage drivers, or the E320/E500 (M112/M113) in petrol. Absolutely avoid the V8 diesels (400/420 CDI).