By the launch of the facelifted W124 in 1993 fuel - injection was ubiquitous in Mercedes engines .
The E was adopted as a prefix ( i.e. , E 220 ) and the model line referred to officially as the E-Class ( or E-Klasse ) .
By the launch of the facelifted W124 in 1993 fuel - injection was ubiquitous in Mercedes engines , and the E was adopted as a prefix ( i.e. , E 220 ) and the model line referred to officially as the E-Class ( or E-Klasse ) .