Bmw 5 Bedienungsanleitung PDF herunterladen (Seite 57)

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11/2009

Page 57

at this point, ranging from anti-lock brakes via an on-board computer all the

way to electronic fuel injection.

Right from the start upon its introduction into the market, the new sedan

came with a broad model range and engines extending from 90 to 184 hp.

A particularly sporting version was introduced in 1984, even though the 218 hp

BMW M535i was not the last word from Motorsport GmbH this time. Instead,

Motorsport GmbH proudly presented the very epitome of the Sports Sedan

at the 1985 Frankfurt Motor Show, the BMW M5. Hardly distinguishable from

the other models when considered from outside, the BMW M5 was optimised

throughout beneath its sheet metal for uncompromising driving dynamics.

Power came from a straight-six boasting four-valve technology and no less

than six throttle butterflies. Output of this drive unit derived from the legendary

BMW M1 was 286 hp, developing supreme thrust and performance previously

offered by only the most thoroughbred sports cars.

The decision taken by BMW in 1983 to enter the fiercely contested diesel

market with the BMW 524td was almost a revolution. To offer the character

so typical of the brand also with a diesel, the only option was obviously to

give the car a powerful and refined turbodiesel engine. The 2.4-litre straight-

six developing maximum output of 115 hp fulfilled these requirements in

a truly ideal manner, the BMW 524td offering the best performance of all

diesels in its segment and, at the same time, the highest standard of fuel

efficiency. Clearly, even diesel sceptics were impressed by this innovative

combination of superior muscle and equally outstanding economy.

Entry into the diesel market was not the only option for BMW to bring

together sporting performance and superior economy. On the contrary –

precisely at this time BMW had already completed a large number of studies

and innovations in developing particularly fuel-efficient technologies and

looking for alternative sources of energy. Many of these innovations went

into series production in the course of time, others set the foundation for

long-term research projects. One example is the hydrogen-powered test

car presented as early as in 1976 on the basis of the first-generation

BMW 5 Series.

Apart from the turbodiesel, a particularly efficient petrol version of the

BMW 5 Series proved suitable for series production right from the start:

The BMW 525e was powered by a six-cylinder designed and built consistently

for superior traction and economy all in one. Displacing 2.7 litres, the power unit

named after the Greek letter “eta” also known as the symbol for efficiency

developed maximum output of 125 hp at an engine speed of 4,250 rpm, with

peak torque of 240 Newton-metres/177 lb-ft at just 3,250 rpm. New engine

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