The BMW E24 automobile platform was the basis for the first production of BMW 6 Series coupé, produced by the German automaker BMW between the 1976 and 1989 model years. Replaced by the E31 chassis 8 Series coupés, the 6 Series name reappeared with the BMW E63 chassis beginning in the 2004 model year. The E24 borrowed heavily from contemporary 5-series cars (E12, later E28).
In July 1978 a more powerful variant, the 635CSi, was introduced (for the time being not available in North America and Japan) that featured as standard a special close-ratio 5-speed gearbox and a black rear spoiler.
In 1979 the carburetted 630CS was replaced with the 628CSi; this car had a fuel injected 2.8L engine taken from the BMW 528i.
In 1982 (Europe) and 1983 (US), the E24 changed slightly, with an improved interior and slightly modified exterior. At the same time, the 635CSi received a new engine, a slightly smaller-bored and longer-stroked 3430 cc six to replace the former 3453 cc engine and became available with a wide-ratio 5-speed or an automatic.
In Europe, 1984 saw the introduction of the M635CSi, essentially an E24 powered by the powerplant of the BMW M1 (the M88, now putting out ). 16" BBS 3 piece wheels and a deeper air dam completed the package. Most M635csi's were equipped with special metric 415 mm wheels requiring Michelin TRX tires.
The 1988 E24s came with ellipsoid headlamps, and were equipped with a single type of bumper. Previous cars had either a European-standard bumper or a larger, reinforced bumper to meet the US standard requiring bumpers to withstand impact at without damage to safety-related components. 1989 was the last year for the E24 with production stopping in April. The replacement for the E24 was the considerably heavier and more complex BMW 8 Series.
In mid-model year 1978 the 630CSi was replaced by the 633CSi. US/Japan specification 633CSi cars had the M30 3.2 litre engine until 1984. In 1985 the car was renamed 635CSi, displacement was increased to 3.4 litres and horsepower increased slightly to . The big difference, however, was torque. Whereas the 3.2 litre had at 4,000 rpm, the 3.4 litre powerplant managed at 4,000 rpm.
From model year 1983, North American and Japanese versions benefitted from the technical revisions and changes to the interior introduced elsewhere in spring or summer 1982. Its chassis was now based on the E28 and no longer on the E12. The front and rear suspension was also revised. Later a self-levelling rear suspension was added to the features list.
The US received its own M series E24 in 1987 but it was called simply M6 and due to emission regulations it came with a reduced .
In 1988, the US E24 was now available with the newest version of the M30, the 3.4L (first used in the E32 735i). Even though the intake manifold states 3.5 it's technically a 3.4 (3430cc) like the previous 3.4. This engine had an increased compression ratio, and updated Motronics/DME. The result was and torque. In effect, this engine was identical to the catalyzed version newly available in Germany and other markets.
|Produced:||1979 - 1987||1976 - 1979||1976 - 1982||1978 - 1981||1982 - 1989||1983 - 1989|
|Engine:||6-cylinder-inline engine (four-stroke), front-mounted|
|Bore x Stroke:||86 mm x 80 mm||89 mm x 80 mm||89 mm x 86 mm||93.4 mm x 84 mm||92 mm x 86 mm||93.4 mm x 84 mm|
|Displacement:||2788 cc||2985 cc||3210 cc||3453 cc||3430 cc||3453 cc|
|Max. Power @ rpm:||@ 5800||@ 5800||@ 5500||@ 5200||@ 5200||@ 6500|
|Max. Torque @ rpm:||@ 4200||@ 3500||@ 4300||@ 4000||@ 4000||@ 4500|
|Compression Ratio:||9.3: 1||9.0 : 1||9.3 : 1||9.3 : 1||10.0 : 1||10.5 : 1|
|Fuel feed:|| fuel injection |
| single downdraft carburetor |
| fuel injection |
| fuel injection |
|Fuel tank capacity:|
|Valvetrain:||12 valves, SOHC, duplex chain||24 valves, DOHC, duplex chain|
|Gearbox:|| 4-speed manual, from 1979 5-speed manual (wide- or close-ratio) |
on request 3-speed automatic, from 1983 4-speed automatic
rear wheel drive
| 5-speed manual |
rear wheel drive
|Electrical system:||12 volt|
|Front suspension:||McPherson axle, coil springs, stabilising bar|
|Rear suspension::||Trailing arms, struts, coil springs, stabilising bar|
|Brakes:||disc brakes (Ø front 280 mm, rear 272 mm), power assisted, from MY 1984: ABS|
|Steering:||ZF recirculating ball steering, power assisted|
|Body structure:||Sheet steel, unibody construction|
|Dry weight:||align="center"||align="center" |||align="center"||align="center" ||
|Loaded weight:||align="center"||align="center" |||align="center"||align="center" ||
| Track front/|
|Tyre/Tire sizes:||195/70VR14||195/70VR14||195/70VR14||195/70VR14||205/70VR14|| 220/55VR390 |
|Top speed:||align="center"||align="center"||align="center"||align="center"||align="center" ||
|Fuel Consumption (estimates):||align="center"||align="center"||align="center"||align="center"||align="center" ||