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  • BMW 502 (1954-1964)

BMW 502

1954 to 1964
BMW 502 car history
Overview
Manufacturer Bayerische Motoren Werke AG (BMW)
Also called BMW 2.6 Luxus
BMW 2600L
BMW 3.2
BMW 3.2 Super
BMW 3200L
BMW 3200S
Production October 1954 - 1964
Designer Peter Schimanowski
Body and chassis
Class Full-size luxury car
Body style 4-door saloon, 2-door cabriolet, 2-door coupé
Layout FR layout
Related BMW 501
BMW 503
BMW 507
BMW 3200 CS
Powertrain
Engine 2580 cc BMW OHV V8
3168 cc BMW OHV V8
Transmission 4-speed manual
Dimensions
Wheelbase 2,835 mm (111.6 in)
Length 4,730 mm (186 in)
Width 1,780 mm (70 in)
Height 1,530 mm (60 in)
Kerb weight 1,440 kg (3,170 lb) or more
Chronology
Predecessor BMW 335
Successor BMW 2500 / 2800 ‘New Six’

 

Before the construction of the first prototype of the 501, Böning had calculated the mass of the car as designed, and realized that the six-cylinder engine would be barely adequate to power the car. He proposed the development of a larger engine to power future versions of the car to the management, who accepted his proposal. Böning began the design and development of a V8 engine similar in general design to the then-new Oldsmobile Rocket V8, with a single camshaft in the vee operating overhead valves in wedge-shaped combustion chambers through pushrods. The BMW OHV V8 engine differed from its Detroit contemporaries in the use of an aluminium alloy block with cast-iron cylinder liners,and in its smaller size, initially with a 74 millimetres (2.9 in) bore and a 75 millimetres (3.0 in) stroke, giving a displacement of 2,580 cc (157 cu in). The development of the V8 was completed by Fritz Fiedler, who replaced Böning as BMW's chief engineer in 1952.

The V8 engine was introduced at the 1954 Geneva Motor Show as the engine of the new BMW 502 saloon car. Using the same chassis and basically the same body as the 501, the 502 was more luxuriously appointed and, with its light V8 engine producing 100 horsepower (75 kW) with a single two-barrel Solex carburettor, was much faster. The published top speed of 160 km/h (99 mph) was far higher than that of the first six-cylinder version of the Ponton Mercedes launched the same year. At the time of its introduction the 502 was reportedly Germany's fastest passenger sedan in regular production.

The 502 was acclaimed as Germany's first post-war V8 powered car, but its high price of DM17,800 led to low sales; only 190 were sold in its first year of production.

The 502 was distinguished from the 501 by additional chrome trim and more lavish interior fittings. Fog lights and individual front seats were also now included as standard features. The 502 was mildly restyled in 1955 with a wraparound rear window.

As well as the saloon version, BMW offered Baur built two-door cabriolet and coupé versions of the 502 in 1954 and 1955. 501s and 502s were also converted into ambulances and hearses.

1956 BMW 502 Interior view

The 1956 BMW 502 Interior view

BMW 2.6 and 2.6 Luxus

The 501 and 502 model designations were discontinued in 1958, when the 501 V8 was renamed the BMW 2.6 and the 502 was renamed the 2.6 Luxus. The cars were continued under these model designations until 1961 with only two notable changes: Power steering became an option in 1959, while front disc brakes were added in 1960.

BMW 2600 and 2600L

In 1961, the model designations were changed again, to 2600 and 2600L. The engine in the 2600L was tuned to give 110 horsepower (82 kW). Production ended in 1963.

BMW 3.2 and 3.2 Super

A further development of the V8 engine was introduced at the 1955 Frankfurt Motor Show. This had a 82 millimetres (3.2 in) bore, giving a capacity of 3,168 cc (193.3 cu in). The engine made its debut in four new cars at the show, the 507 two-seat convertible, the 503 coupe, the 505 limousine prototype, and the BMW 3.2, a development of the 502 that did not have a model number and was identified simply by its displacement in litres. As used in the 3.2 and the 505, the engine had a compression ratio of 7.2:1, up from the 7.0:1 of the original 2.6 L V8 engine. In this tune, the engine yielded 120 horsepower (89 kW) The final drive ratio was raised from 4.225:1 on the smaller-engined sedans to 3.89:1 on the 3.2 to reduce the fuel consumption of the larger engine.

In 1957, the 3.2 Super with a 140 horsepower (100 kW) engine, was released. The 3.2 and 3.2 Super were continued under these model designations until 1961 with only two notable changes: Power steering became an option in 1959, while front disc brakes were added to the 3.2 Super in October 1959 and to the 3.2 in 1960.

BMW 3200L and 3200S

In 1961, the 3.2 and 3.2 Super were replaced by the 3200L and 3200S respectively. The 3200L had a single carburettor engine that produced 140 horsepower (100 kW), while the 3200S had a twin carburettor engine that produced 160 horsepower (120 kW) at 5600 revolutions per minute.

A report on a 3.2-litre BMW saloon estimated the 502's consumption at 15 L/100 km (19 mpg-imp; 16 mpg-US).

Production ended in 1963.

Other developments

BMW 503 and 507

The BMW 503 and 507 were grand touring cars; the 503 was a four-seat coupé or convertible while the 507 was a two-seat convertible. Conceived by US importer Max Hoffman, designed by German-American designer Albrecht von Goertz, and engineered by Fritz Fiedler, the 503 and 507 used variations of a chassis specially designed for them, along with reworked twin carburettor versions of the 3.2 engines. They were supposed to be priced at about five thousand dollars in the United States and be sold in the thousands by Hoffman. Instead, the 503 and 507 ended up being priced at about ten thousand dollars, and only 412 and 252, respectively, were sold.

BMW 505 prototype

The Frankfurt Show in 1955 saw the presentation of the BMW 505, a limousine based on the new 3.2 saloon. Styled by Giovanni Michelotti, the 505 was 5.1 metres long, with a wheelbase of about 3.1 metres. Konrad Adenauer, the Chancellor of West Germany, tried out the 505. It is reported that, on entering the car, Adenauer knocked his hat off. Regardless of the reason, Adenauer continued to use the Mercedes-Benz 300 as his official car to the extent that the type acquired the nickname “Adenauer Mercedes”. The BMW 505 never went into series production, and only two prototypes were built.

1954-BMW-502-Coupe

1954 BMW 502 Coupe

 

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BMW 502 car history from 1954 to 1964

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Vehicles launched in 1954 | Giovanni Michelotti

Technical

  • Production figures

    Series Years built Units manufactured
    502 and 2.6 L derivatives
    502 / 2.6 Luxus / 2600L 1954 – 1962 3,117
    3.2 L derivatives
    3.2 / 3200L 1955 – 1962 2,537
    3.2 Super / 3200S 1957 – 1963 1,328
    Coupe and roadster derivatives
    503 1956 – 1959 412
    507 1956 – 1959 253
    3200 CS 1962 – 1965 603

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BMW 502 (1954-1964)
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