Beginning in autumn 1992, the update for the 124 series was rolled out uniformly six months later. In a world first, the four-valve technology was now used for diesel models as well.
But the facelift programme was not just for the diesel models. The 2.8-litre six-cylinder engine, unveiled six months previously, was given a detail modification that, for once, was not motivated by technical considerations. In order to get the models affected into a lower band for motor insurance within Germany, the rated output was reduced from 145 kW to 142 kW.
As part of the changes begun in June 1993, all models in the 124 series were brought stylistically up to date by redesigning their bodywork and were modified in line with the other model series. The most distinctive feature of the updated models was the radiator grill, which was based on that of the S-Class. For this 'integrated radiator', the chrome frame, which was relatively narrow in comparison to the previous version, was integrated harmoniously into the bonnet. The Mercedes three-pointed star was positioned on the bonnet, as it was on the S-Class saloons.Particularly conspicuous were the modified front indicators, which now had transparent glass covers, making the light units appear larger. The orange light of the indicator was produced by coloured bulbs. In contrast to other body variants in the series, the tail lights on the estate models were left unchanged, but the wheels and bumpers were also given a makeover. The steel disc wheels were given new hub caps with a six-hole design, and the bumper mouldings were now finished in the same colour as the mounted parts, rather than in uniform black as before.
When the revised models went on sale in June 1993, the 124 series was also affected by the new nomenclature. In line with the S-Class and the new C-Class, the medium class was now called the E-Class, and the model designations followed a modified system. This involved a letter designating the vehicle's class preceding a three-digit number which, as before, was based on engine capacity. The E for Einspritzmotor (injection engine) was no longer needed, as carburettor engines were now a thing of the past. As for the body variant, that was quite obvious just from looking at the vehicle, so the C and T coding was also allowed to lapse