The Mercedes-Benz 124 series is a range of mid-size cars made by Daimler-Benz from 1984 to 1997. The range included numerous body configurations, and though collectively referred to as the W-124, official internal chassis designations varied by body style: saloon (W 124); estate (S 124): coupé (C 124): cabriolet (A 124): limousine (V 124): rolling chassis (F 124); and long-wheelbase rolling chassis (VF 124).

From 1993, the 124 series was officially marketed as the E-Class. The W 124 followed the 123 series from 1984 and was succeeded by the W 210 E-Class (saloons, estates, rolling chassis) after 1995, and the C 208 CLK-Class (coupés, and cabriolets) in 1997.

In North America, the W124 was launched in early November 1985 as a 1986 model and marketed through the 1995 model year. Series production began at the beginning of November 1984, with press presentation on Monday, 26 November 1984 in Seville, Spain, and customer deliveries and European market launch starting in January 1985.