Mercedes-Benz 450 SLC 5.0 (C 107)
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Ausstattung laut Datenkarte:
260 = Wegfall Typenkennzeichen Heckdeckel
261 = Wegfall Typenkennzeichen 5.0 auf dem Heckdeckel
406 = orthopädischer Sitz links und rechts
466 = Zentralverriegelung
502 = Außenspiegel rechts
532 = Antenne automatisch ohne Radio
570 = Armlehne vorne klappbar
585 = Klimaanlage und Fensterheber elektrisch
590 = Wärmedämmendes grünes Glas rundum
600 = Scheinwerferreinigungsanlage
682 = Feuerlöscher
At the Frankfurt Motor Show IAA in September 1977 the 450 SLC 5.0, a new top model of the type range 107 was presented. The great novelty of this type was a 5.0-liter all-aluminium engine, developed from the time-tested 4.5-liter V8 with grey cast iron block. The new engine had an enlarged cubic capacity realised by reboring. It weighed 40 kg less and convinced by a higher torque and a power increase of 240 hp.
The weight reducing measures were not limited to the engine; the body was also included: engine bonnet, boot-lid and both bumpers were of aluminium. Together with the standard light-alloy rims a further weight reduction of more than 80 kg was achieved. From the outside the 450 SLC 5.0 was recognised by its discreet front spoiler, its black plastic rear spoiler and its uniform grey paint coat under the protective strips at the side. The main goal, however, in using these add-on parts rather unusual for Daimler-Benz was not an optical improvement. Decisive was the considerably reduced negative lift force at the front and rear axle achieved with the help of both spoilers.
The series production of 450 SLC 5.0 was taken up in May 1978. There was no counterpart in the SL roadster range. Valuable experience was gained in manufacturing the engines which was not always without problems. Since the practical testing of the production car by customers did not bring any negative surprises and all the 5-liter coupés were evaluated positively by its drivers nothing prevented the use of all-aluminium engines in the high-volume S-Class range. Therefore the low-volume model 450 SLC 5.0 functioned as a technological forerunner and pioneer for the large-scale production.
Against the background of imaginable sportive activities with the 5-liter coupé, the displacement capacity of 5,025 cc was not so well chosen with respect to aspects of homologation. In order not to fall behind, the bore was reduced by 0.5 mm which resulted in a total piston displacement of now 4,973 cc. The modified engine with reduced displacement used in the standard production from May 1979 onwards. With its potentials of performance and price the 5-liter coupé certainly fulfilled its role as technical speciality and exclusive model. However, regarding the 2,769 cars that were built, we can only talk of a certain exclusivity.
At the Geneva Motor Show in March 1980 the SLC coupés and the roadsters of the type range 107 presented themselves in an updated form. The interior as well as the steering wheel was adapted to the S-Class saloons. The mechanics, too, was brought up to date. The 3-speed automatic transmission was replaced by a 4-speed version. The all-aluminium engines of the S-Class were now also used in a slightly modified variant in the 107 series. The 450 SLC 5.0 was renamed into 500 SLC, thus functioning as successor to the 450 SLC. A lot of exclusivity, however, was lost, since there existed already a 500 SL, a 500 SE and a 500 SEL with the same engine and almost identical driving performance. The 350 SLC was cancelled in favour of the 380 SLC. Ist 3.8-liter all-aluminium aggregate had been built after the 5-liter from the time-tested 3.5-liter V8 with grey cast iron block. Only the 6-cylinder engine of the 280 SLC remained unchanged in the program. From the outside, except for the type label, almost no differences to the preceding models could be spotted. All three SLC types were now equipped with front spoiler known form the 450 SLC 5.0. The black plastic rear spoiler, however, was exclusively used in top models.
18 months after this last big model improvement, the SLC coupés of type range 107 had to yield to their successors. They were based on the S-Class saloons and only available with 8-cylinder engines. Within a production time of ten years all in all 62,888 cars had been produced.