202 Chasis Parts.pdf
W123 designates the executive line of cars, manufactured by Mercedes-Benz between 1976
The W123 models eclipsed the earlier W114 and W115 models they replaced as the most
successful selling Mercedes-Benz cars to date, selling approximately 2.7 million cars.
Model names are descriptive of engine size, type of engine and chassis type:
C for Coupé
L for Lang (long-wheelbase)
T for Transport and Touring (estate/station wagon)
D for Diesel
E for Einspritzung (fuel injection)
Mercedes-Benz introduced the W123 four-door executive car in January, 1976 to replace
The overall dimensions and wheelbase were lengthened and styling was updated to a less
angular more contemporary look. The new look included round head lights with inboard
fog lamps in all models except the 280 and 280E which had large rectangular headlights.
Later the European models were all changed to the rectangular headlights. North American
models retained the round complement.
The W115 engines were carried over to the new models, with the 3 liter 5-cylinder diesel
model being renamed from "240D 3.0" to "300D" in the European markets to match North
American markets ( in the North American markets the 240 designated the 2.4L 4 cylinder
The 250 models were given a new 2525 cc inline-six (Type M123, a short-stroke version of
the 2.8 liter six Type M110) this replaced the 2496 cc Type M114 six.