It was the year of the most changes to the 300s. In addition to the explained below in the second video here first of all the most fundamental, namely the of the body. The windows were considerably larger and on the sides fully retractable. Headlights and turn signals front were changed, added rectangular fog lamps, rear lamps were adapted to the of the 220. Except another radiator the completely altered rear attracted attention. The optional folding roof was replaced by a steel winder roof.
Again new in the program, the convertible. It was not shortened, and also retained the four doors. This was of course a bit easier in a vehicle of this length, because it still had a supporting frame. The gag was the lack of the B-pillar and one wondered how the Mercedes engineers were able to attach here as heavy rear doors. The hard top did not weigh down the luggage compartment, arose pretty high rear. In return the inner rearview mirror was then foldable.
Here another interesting detail that has always been built in the 300, the electrically to actuate auxiliary spring system. An electric motor displaced a rod above a small gearbox which preloaded against the force of the coil spring the also springy torsion bar. Incidentally, the 300d had not only obtained a swing axle. Only its was the improved with extra deep pivot point.
In principle, the engine now had the injection system of the SL But the did not directly injected into the combustion chamber, but into the intake manifold. Also from that, the significantly lower performance resulted. However, the injection system was also not to compare with the later in the SE models. The namely had only two pump elements as opposed to six in the 300 d. 11/15