BMW 6 Series (E24)

BMW 633 CSi ( 1975-1982 )

The BMW E24 is a four -seat coupe the upper class of BMW and the first model of the 6-series. Its production began in October 1975 as the successor to the E9 series and was completed in April 1989. All E24 have a six-cylinder in-line engine and rear wheel drive.

In May 1989, the E24 was replaced by the 8-seater coupe E31.

• 3.1 Alpina
• 3.2 Schnitzer
• 3.3 Hartge
• BMW 633 CSi 3.4 TWR Hallmark Edition
• 3.5 Other

• 4.1 Specifications

• 6.1 exhaust Purified U.S. models
• 6.2 L6 and M6

• 7.1 BMW
• 7.2 Alpina

History

The E24 was officially launched in March 1976 at the Geneva Motor Show. He took too much of the appearance in 1977 presented the first 7 Series E23 anticipated, but publication was based on the modified and the wheelbase slightly shortened floorpan of the 5 Series E12 series. The official type designation is BMW 6 CS.

Compared to its predecessor, the E24 E9 is longer and wider. The activities carried out during the development of crash tests resulted in a heavier though, but also considerably more rigid and safer body structure. Additional weight brought the more comfort-oriented equipment. The newly added B-pillar was covered with black plastic in order to make them visually recede and thus produce the impression of a laterally continuous as the previous window area. Due to the B-pillar, however, the rear side windows could only be partially submerged.

BMW 's chief designer Paul Bracq had the interior of the E24 that with the 1972 featured the first BMW 5 Series ( E12) introduced a design element of the driver-related cockpits, in which, since the introduction of the first BMW 3 Series E21 1975, the controls and indicators on the center console to the operator's are rotated out further refined. This design element has been maintained for over 25 years in all series models except the BMW M1.

The E24 was initially built entirely by Karmann. As of August 1977, only the body shells were there manufactured and assembled at BMW's Dingolfing plant because of the varying quality. There were consistently six-cylinder in-line engines (M30 / M88 ) with a power 135-210 kW for installation. A total of 86 219 cars were produced. Of the company Alpina, Hartge and Schnitzer Motorsport, there were refined models, including the Alpina B7 Turbo Coupé with a capacity of up to 243 kW ( 330 hp).

The first two series vehicles, a 630 CS with the Fahrgestellendnummer 4,360,001 and a 633 CSi with the number 4375001, rolled off the assembly line on October 15, 1975.

The final E24, a 635 CSi Automatic in silver salmon with chassis number 1280940, was produced on 14 April 1989, delivered on 31 May 1989 to the customers in Germany, to which it had been approved on 26 May 1989. The series was therefore discontinued after a total of 86219 built BMW cars in favor of the larger 8-seater coupe E31.

With a production period of 13 years, the E24 is the expired longest series of BMW.

Model History

1976: 630 CS and 633 CSi

The standard introduction of the 630 CS were available with a 3.0 - liter petrol engine and the 633 CSi with a 3.2 - liter injection engine; in the U.S. there was for the launch of the 630 CSi with standard catalyst. The base price for the 630 CS was DM 40,600 and DM 43,100 for the 633 CSi

Technical innovation was the so-called check control, which could show the driver the function of the brake and tail light, proper level of coolant, engine oil, brake fluid and window washer fluid as well as sufficient thickness of the brake pads on a button.

The standard equipment was apparent at that time scales quite extensive, they included not only comfort features such as electric central locking, electric windows, electrically adjustable door mirrors, height adjustable driver's seat and longitudinally adjustable steering wheel and heat resistant glass and security details such as the power steering with safety steering column and the laminated glass windscreen. In addition, there was alloy wheels, halogen headlights, and a rear fog lamp, a tachometer was not at that time, of course. The built at Karmann E24 had standard partial leather seats ( seat and backrest fabric seat and backrest bolster leather), which then in 1977 built at BMW 6 Series even had leather seats. The rear seats were all designed as individual seats.

To the optional equipment available ex works belonged example, the air conditioning, an optional electric or manual sunroof, and a 3- speed automatic transmission.

1978: 635 CSi

In order to refill the sporty niche after both more comfort - oriented base models, added 1978, the 635 CSi with a 3.5- liter injection engine with 218 hp, the model range, at a price of 49,400 DM This differed very appearance of the other two models with front and rear spoilers, side trim and the BBS alloy wheels with cross-spoke design.

The chassis was stiffer shock absorber with reinforced stabilizers, a five-speed gearbox and a limited slip differential with 25 % locking rate (surcharge 40%) were standard. In the interior there are now front Recaro sport seats that were already available at extra cost for 630 CS and 633 CSi, and the instruments in the cockpit were provided with red instead of white pointers.

Thanks to the now larger engine with more torque and more power, the 635 CSi in the test of auto motor und sport even the Porsche 928 and Mercedes- Benz 450 SLC 5.0, both of which compete with big V8 engines and 240 hp ( and with about 240 or 232 km / h higher top speeds reach 635 CSi: 228 km / h ) ausbeschleunigen, : from 0 to 200 km / h, the 635 CSi with 36.5 s about two seconds faster than its approximately $ 10,000 more expensive competitors.

1979 628 CSi

The already at the start of series no longer fully modern 630 CS, associated with its three -liter engine with Solex twin carburetor a higher consumption than the displacement larger and more powerful 633 CSi is, in 1979 replaced by the 628 CSi, the 2.8 - liter injection engine with 184 hp is taken from the 528i and almost reaches the engine and performance figures of the old three-liter engine. Thanks to the L- Jetronic is not only a significant reduction in fuel consumption results in especially in city traffic, the refinement of the smaller motor is better. The 628 CSi initially costs 46,000 DM

1982: first facelift

Fundamental changes were to the great facelift in May 1982 not held in only slightly revised exterior appearance rather than on the technical side. Thus, the 6 Series was both chassis of motor as well as technically to the level of the E28, the successor to the E12, brought. Due to the changes to the chassis, the body structure was reworked, the body was not only 50 kg lighter but also stiffer. The official type designation is now BMW 6 CS / 1

Under the hood, the L- Jetronic the 635 CSi was replaced by the more modern Motronic, the engine of the 628 CSi was unchanged. The 633 CSi is no longer sold in Germany, for other markets runs its production until 1984. 635 CSi for the ABS is now standard for the 628 CSi is available on request and is only 1984 standard.

With reduced weight, the revised engine management and the now standard 5 -speed manual gearbox Even the fuel consumption can be significantly reduced: at 628 CSi by 9.1 % or 1 l/100 km, the 635 CSi even 17.9% or 2, 1 l/100 km respectively in the combined DIN of thirds.

Inside fall first on the modified instruments. The speedometer no longer sits in the middle of the instrument cluster, flanked by the tachometer right and fuel gauge and coolant temperature gauge on the left, but as with the already introduced E28 and facelifted E23 are the speedometer and tachometer now hiked the same size and outward, fuel gauge and temperature gauge are arranged one above the other center, the middle is now also available in E24 service interval indicator. This is calculated from the actual load and cold start frequency, the time until the next oil change or the next inspection, also once a year prompted to change the brake fluid.

The Check Control is no longer active on keypress, but now monitored automatically coolant level, engine oil level, low beam, brake light, tail light, license plate lights and washer fluid level, an error is pointed with electronic gong and a centrally placed warning lamp; Brake fluid level and sufficient thickness of the pads are now monitored separately.

Also new was the available of the 628 CSi as special equipment and in the 635 CSi standard on-board computer that is not only the time and date, but also outside temperature could ( with ice warning below 3 ° C), average speed and consumption show, also was a speed limit programmed be, was warned by an audible signal when exceeded. In addition, a travel distance could be entered from the on-board computer trying to predict an arrival time with the help of the then already after departure distance traveled and the average speed. Also possible was an immobilizer after code entry that prompted after switching the ignition to re-enter the code, otherwise, the ignition and locked after three failed attempts, the vehicle horn for 30 seconds intervened. In 1984, eliminated the function of calculating the time of arrival, but the rolling display of the information provided by the then BC II called on-board computer from the turn signal lever was operated remotely. In the ad itself was changed from LEDs to a backlit LCD display.

The operation of heating and ventilation have changed, the place of the three rotary controls for temperature (left), air flow (center until 1979 with analog and later digital clock ) came and air distribution (right) are two outer knobs for temperature and air flow, in between there are now three sliders for the distribution of air volume. For the Innenraumtemperierung there is now an electronic temperature control. The digital clock indicating, available as an option with outside temperature display, or as an onboard computer, including sitting on the right side of the center console, next to the left is space for the car radio. The functional diagram of the air conditioning available as an option, however, has not changed, still the air to be cooled is drawn from the interior by a barbecue at the bottom of the center console, chilled, and blown through the center grills the instrument panel back into the interior in a convection principle. A distribution of cooled air to the windshield or to the footwell was (and remained ) is not possible.

The standard central locking system has anti-theft devices now have an additional locking device which prevents the vehicle can be opened when activated lock from the inside. The windscreen washer nozzles and the driver's side mirrors are electrically heated; by operating the door handle, the heating of the driver's door lock is activated.

Also kept more current switch for the power windows and mirrors collection. Outside was retouched only the front or rear. So now generally larger front aprons were installed in the ( optional ) fog lights were now flush-mounted in the tail, extends to the bumper on the fenders zoom. When the 635 CSi ( standard ) Fog lamps were now integrated into the front spoiler.

In Germany, a 628 CSi now costs (03 /82) 51,800 DM, a 635 CSi 61,300 DM; before the transition to the second facelift (04 /87) the price of the 628 CSi at DM 67,000 and the 635 CSi is 78,000 DM

1984: M635 CSi

From 1984, there was a sports version of the BMW 635 CSi, the designed by BMW Motorsport GmbH, but built at BMW AG BMW M635 CSi ( unlike the first M5 Series E28, which ran at the Motorsport from the tape and accordingly the manufacturer as the was BMW Motorsport GmbH registered in the registration book ) equipped with a BMW M1 derived, however, revised four-valve engine with dual overhead camshafts ( DOHC ) and six individual throttle valves equipped. Engine code for the high-density motor is BMW M88 / 3, for the low-compression engine for the vehicle model with a fully controlled three -way catalytic converter S38B35. The lower compression ratio for the S38B35 was necessary because unleaded fuel was not yet available with the premium gasoline comparable, high octane then. The M635 CSi costs in 1983, when he first appears in the price lists, 89,500 DM; in September 1986 as M635 CSi with catalyst 102 050 DM

Although the enhanced transmission with the designation 280/5 of Getrag was a sports transmission with a longer first gear and tighter spread, but did not have the sport shift pattern with rear left lying first gear ( engl. "dog -leg shift" ) of the M3 E30 or former sports transmission. The rear received a limited-slip differential with 25 % locking rate.

The chassis has been adapted to be lowered by 10 mm as well as other springs and gas pressure shock absorbers and reinforced stabilizers to the higher performance. The brakes were also enhanced, it came forward now larger brake discs with 300 mm diameter ( internally ventilated ) are used, supplemented by four-piston fixed calipers at the front. The braking system was designed as a double - dual circuit brake system ( the weaker models had all-round single-piston sliding callipers and brake discs with 284 mm diameter and a diagonal dual-circuit system ). ABS was standard.

The larger starter battery with a capacity of 88 Ah now was housed in the trunk, on the one hand because of the engine compartment there was no room, on the other hand because the traction was improved by the resulting higher load on the rear axle.

Externally the M635 CSi from the other models differed by a deeper front spoiler with integrated fog lamps pulled down, a rear spoiler (like 635 CSi ) and body-colored outside mirrors; in contrast to the weaker models driver and passenger - side mirrors were standard here. If as an option the wider 240/45 VR 415 TRX tires ( original tires, TRX 220/55 VR 390 on forged Fuchs wheels ) was ordered on forged BBS wheels, were added body-colored wheel arch trims.

In the interior, sports seats and a sports leather steering wheel were standard, as a modified instrumentation with speedometer up to 280 km / h and tachometer to 8000 min-1 with red range from 6900 min -1, the consumption indicator located in the other models in the lower part of the tachometer accounted for, but was not as in other models M (for example, E30 and M3 all subsequent M models, except the 850CSi ) is replaced by an engine oil temperature gauge; At this point, the "/ / / M " logo was.

He reached with 210 kW at 6500 min-1 and 340 Nm at 4500 min -1 at a curb weight of around 1510 kg a top speed of 255 km / h and acceleration from 0 to 100 km / h in 6.4 seconds.

1987: The second facelift

The second May 1987 led facelift fell outside of something striking. Thus, the already known for the U.S. market, enlarged bumpers were front and rear adjusted and by the well-known from his time current BMW models baffle boxes which scavenge shocks to 15 km / h ( up to 8 km / h reversible by hydraulically damped spring elements, about mounted to 15 km / h irreversibly by comparatively easy replaceable deformation elements ) on all models. Laterally, the bumpers were now decorated with body-colored plastic cover. The front spoiler was even more voluminous and was now identical for 635 CSi and M635 CSi. The enlarged bumper also take care of the now grown to 4815 mm Vehicle length.

Technischerseits he was brought to the level of the proposed 1986 E32, which is most clearly through the use of DE- headlights now used in all BMWs ( triple - ellipsoid ) for expression. Even the fog lamps have been fitted with this lens technology. The 628 CSi was accounted for, the 635 CSi was with the revised 3.5 - liter engine with 155 kW equipped E32/E34-Baureihen (211 PS) ( with catalyst) and 162 kW ( 220 hp ) (without catalyst). The remaining models in the program and M635 CSi 635 CSi were now supplied as standard as a catalyst models, the respective high-density, katlosen variants, however, were still available on request.

The revision on 6 was also reflected in the price, a 635 CSi (Cat. ) cost 80,000 DM in June 1987 and the M635 CSi (Cat) 106,000 DM

The official type designation was indeed still the BMW 6 CS / 1, but unofficially this final version of the E24 is often referred to as CS / 2 respectively.

Despite this care model, not least due to the publication in 1986 of the sevens series E32 made ​​it clear that the E24 was a indeed nice, but technically only in a few details current car.

As early as 1986 wrote Eckhard eybl in the journal Auto Motor und Sport via the M5 E28 M635 CSi and " sedan and coupe are both no longer dewy, almost already streaked with gray and will soon meet the first Erlkönig drawings of their successors. Well maintained but long series have an advantage that all love to discover and young princesses. You are mature and learn until the last transmission gears; these two BMW stand at the zenith - much more is within this technical framework hardly possible. "

Tuner

Alpina

Due to the modular system of the BMW engines, it was easy for Alpina to ensure also the newly published 6 Series Coupe for everyday use as well as athletic performance increases.

For the BMW 630 CS and 633 CSi offered at the beginning of E24 were already known, B2 and B8 engines listed from the Series 5 Series E12, are taken sedan and coupe E3 E9; the letter B refers here to the big six-cylinder M30, the number that follows each stage of development.

From 1978, operated under the name Alpina as an independent car manufacturer, to the first real Alpina's scored the first BMW Alpina 630 Turbo called B7 Turbo Coupé, which deals with 300 hp and 260 km / h only in the sports car -like performance, but with 79,990 DM also priced upward deposed. For comparison, a 240- km / h faster Porsche 928 cost 58,800 DM, an ' only ' 182 km / h fast Golf I GTI 13.580 DM (1976).

But technically made ​​the B7 Turbo Drive attention to themselves: the maximum boost pressure of the turbocharger boost controller could by from the driver seat of a maximum of 1.85 be lowered to 1.55 bar ( equivalent to 250 HP) bar, and low for improved performance development speeds, ie before the onset of the turbocharger ( turbo lag ), attended a special tuned resonant charging. This combined charge was then known was developed by the Hungarian engineer Dr. Cser and implemented by the Director of Alpina engine development Fritz Indra for the first time in a production vehicle. The injection took over an electronically controlled, air-flow measured Pierburg DL- conditioning, and for the correct ignition timing caused an equally electronic, contactless Dr. Hartig controlled ignition system.

Once BMW had switched to the new Bosch Motronic, the B7 turbos also benefited from this motor control, here the control of boost pressure, ignition and injection integrated and coordinated. After Alpina as the first car manufacturer, the new metal catalysts Emitec, due to the lower exhaust back pressure compared to catalysts with ceramic carrier, started in mass production, the Motronic also took over the lambda control.

Somewhat overshadowed by the attention, they were not quite as strong models B9 and B10, but thanks to their balance were in the best tradition of the classic Gran Turismo due to the strong induction engines.

The built only from 1982 B9 built on the 635 CSi, the performance increase was achieved by classic engine tuning: the spherically worked combustion chambers provide better combustion of the processed through the intake ports and the camshaft with only slightly longer opening time ( 268 ° CA 264 ° KW) and revised cam shape increasingly flowed mixture, the Motronic was suitably retuned. Despite significantly better performance the B9 coupe consumes less fuel than the underlying series BMW. However, the B9 is at a price of 72 950 DM (1982 ) in the same price range as a Mercedes -Benz 500 SEC, this is certainly one of the reasons that the B9 and its 1985 successor B10 appeared only a total of 119 vehicles will be built.

Carver

From the 635 CSi of type 6 CS / 1 from the company Schnitzer 1982/83, a total of 17 vehicles converted to a Schnitzer S6, more than 100 additional conversion kits were sold by Schnitzer car repair shops, which then in turn umrüsteten an E24. The S6 had an uprated engine with 180 kW (245 hp) at 6000 min -1 and a torque of 322 Nm, so that he reached a top speed of 244 km / h

Hartge

The Herbert Hartge GmbH has produced from 1982 to 1987 from the E24 conversions. Based on the 635 CSi there was the H6S with 177 kW (240 hp) and the H6sp with 187 kW (254 hp), the achievable maximum speeds were at 235 and 243 km / h

Moreover, there was on the basis of the M635 CSi H6 -24, the cam shaft and the compression of modified here was raised to 11.0:1, with a motor adapted to these changes, the engine output Motronic 244 kW ( 330 hp) at 6800 min-1 and torque of 355 Nm with specified at constant 4500 min-1. The H6 -24 thus reached a maximum of 262 km / h and a 0-100 km / h acceleration time of 6 seconds; the increase in speed is low compared to the M635 CSi not very clear because the rear axle of the base vehicle was acquired.

As of carvers were also offered by Hartge spoiler kits, suspension modifications, sport steering wheels and aluminum wheels. Unlike the comparatively subtle Alpina spoiler was offered by both, however, looks more eye-catching solutions.

BMW 633 CSi TWR Hallmark Edition

In the early 1970s Tom Walkinshaw had begun with Alpina parts to refine the BMW 3.0 CSL and used in races (including victory at the 1976 Silverstone 6 Hours, driver John Fitzpatrick ), in the late 70s to 1985 TWR (Tom Walkinshaw Racing) then Alpina main dealer for the UK market.

In 1978, the 635 CSi appeared, it was with British merchants small remainders of order expiring on the European market 633 CSi. To be able to sell off this successful as possible, was built by BMW Great Britain, together with the so-called TWR TWR Hallmark Edition. All of these cars were right-hand drive, but two hand switch (one of which belonged to Derek Bell) all had an automatic transmission; Total number of items was 26 (some sources speak of 56).

The following characteristics recorded the TWR Hallmark Edition of:

• Alpina alloy wheels 7x16 (front) and 8x16 (rear) with Pirelli P7 tires
• Alpina front spoiler, rear spoiler, however, no
• Alpina / Bilstein suspension and powerful brakes
• Handlinierte circumferential narrow double - stripes on the shoulder height of the body and also a handliniertes "H " on the front spoiler
• Ashtray cover made ​​of solid silver with embossed "H " and of course a Hallmark; derived therefrom is the name of TWR Hallmark Edition
• Front head restraints with silver "H " badge on the sides

The charge for a vehicle from the TWR Hallmark Edition was around £ 4,000 ( equivalent to about 16,000 DM) and raised the price of the 633 CSi thus in the range of £ 20,000, he was therefore more expensive than the newer 635 CSi.

Other

In addition to the manufacturers already mentioned, there were other companies, most of which offered optical " Finishing " for the E24. These include the accessories manufacturers such as Kamei and Zender, but also broad - conversions by companies such as Koenig Specials, Gemballa and ABC Exclusive, in particular, the latter two also the interior through the installation of television sets and extensive stereo systems to small refrigerators significantly modified.

Racing versions

As of 1981, the 635 CSi of partially factory-backed teams and tuners, or even in the work order of the team Schnitzer Motorsport was successful in touring car races used in group 2 and from 1982 in Group A, piloted by drivers like Dieter Quester, Marc Surer, Hans -Joachim Stuck, Gerhard Berger, and Roberto Ravaglia.

Since BMW does not use its own factory vehicles incurred by racing cars in the collaboration between BMW, parts suppliers and the actual racing team. The body for racing 635 is at Karmann specially welded to BMW delivers in a special kit of parts suspension and brakes, the safety tank, as well as aerodynamics and equipment parts. Since only Alpina at the time was not for BMW able to perform the necessary reprogramming the engine electronics, are all racing engines from Alpina. The price for a body together with parts kit is 1983 DM 120,000, the engine costs more 35,000 DM

Although the up to 250 km / h and almost 300 horsepower coupe compared to the 420 hp Jaguar XJ -S and the turbocharged Volvo 240 with 350 HP lacks a little power, it drives due to its reliability, driver friendliness and last but not least its relative frugality to 1986 three times the European Touring Car Championship is a 1981 with Helmut Kelleners, Dieter Quester 1983 and 1986 with Roberto Ravaglia.

In the years 1983, 1985 and 1986, the 635 CSi wins at the 24 Hours of Spa- Francorchamps, which at that time belonged to the European Touring Car Championship. At the Nürburgring the coupe in the years 1984 and 1985 in the 24 -hour race is successful.

• In the work order inserted Schnitzer BMW 635 CSi Group A in the '' Original BMW Parts '' design

Side view from the front

Side view from behind

In the founding year of the DTM 1984 Volker Strycek wins in Group A racing car the first championship; Although he had not won a single race, but was a regular in the points.

The 635 CSi racing coupe was used not only in Germany but also in the UK, France, Belgium, Scandinavia, Australia, New Zealand and Japan in the national touring car championships, in the Alpine region and in the UK, including in mountain races as well as in France in rallycross race, but mostly as a single vehicle. However, since the strength of the racing coupés were more likely to be reliable than the quickness, it was there not quite as successful as in the German and European Touring Car Championship or in the long-distance races, where factory-supported teams competed with several vehicles.

In addition, several rallies the 635 CSi coupes were taken at the start. Were launched at the 1982 Monte Carlo Rally Winfried Herrmann and Dieter Schneppenheim with a Group 2 car. In 1985 a group of circuit racing car Hartge Motorsport, Andreas Rausch at the Rally Vorderpfalz was A- 635 CSi, actually used, noise / Plenk even reached this place 6 overall.

Specifications

• Engine differences between group 2 (until 1981 ) and group A ( from 1982)

Group A with series cast manifold

Group 2 with single - suction tubes and flat slide

Group A with series intake manifold and throttle

BMW Art Cars

In the series of BMW Art Cars, where individual vehicles are designed by well-known artists, there are also two BMWs Series E24:

In 1982, Ernst Fuchs designed a BMW 635 CSi, the artwork is called by him " fire fox hunting rabbits ." For the first time in the history of BMW Art Cars is a racing car is not painted as a work of art but a production vehicle.

However, the 1986 by the American artist Robert Rauschenberg designed BMW 635 CSi also was a standard 6 Series Coupe, this time in a U.S. version. Unlike its predecessors, the artistic design is transferred to the body not by paint but by photographic techniques.

• Rauschenberg BMW Art Car (1986 )

Front view

Right Side View

Rear view

Both cars are pure exhibits; they were never in traffic or - used in racing - as their predecessors.

Country variants

Overall, there were four countries from the E24 variants, ie general or special modifications engines for certain sales regions.

• Europe: the base model, left-hand drive for the continental European countries of the former EU and right-hand drive for the UK. Since Europe at that time was the largest market for BMW, most engine and optional equipment variants were available here. Model Name: ECE and KAT Switzerland / Sweden: For the rules applicable in Switzerland from October 1982 stricter exhaust and noise limits was by the end of 1984, a 635 CSi with an exhaust- purified 3.2- liter engine ( secondary air injection, exhaust gas recirculation) offered this engine delivered 145 kW ( 197 PS); this model was also sold in Sweden. From model year 1985 to the second facelift in 1987 the Swiss 635 CSi had then optionally a low-compression 3.4-liter engine with 150 kW ( 204 hp ) ( and second ignition map for speeds below 65 km / h) or the European 3,4 - liter Katmotor. Before and after above-mentioned periods, the Swiss distinguish 633 CSi 635 CSi or not of the ECE models. There was also no own model designation.

Exhaust Purified U.S. models

After BMW in 1975, the sales structure of the U.S. importer Maximilian " Maxie " Hoffman, had the general importer for Mercedes -Benz and BMW also instrumental in the development of the BMW 507 and previously also the Mercedes 300 SL, taken over and the sales company BMW of North America was founded, the sales figures in the U.S. had almost doubled within three years. Your vision should also supply the new 6 Series Coupe.

• 630 CSi ( 09/76-07/77 ): For strict U.S. emissions regulations that engine with comprehensive measures to reduce emissions was developed: exhaust gas recirculation, secondary, tank vent with activated carbon filter, and thermal reactor. For support in the U.S. fuels with octane numbers 87-91 the compression had to be lowered. In particular, since the exhaust gas afterburning to fast speed and engine load changes is very sensitive - the smaller the change in the engine operating point, the easier it is the feedforward control or tracking of fuel - air mixture recirculated exhaust gas amount and blown secondary air exhaust post-combustion maintain the thermal reactor principle - which led to pronounced deceleration associated mild performance, so that the sales figures quite appropriate tough -developed, although the new 6 Series was otherwise superior to its predecessor than clear. Number of units sold: manual switch 928 (Auto 866), of which CAL 432 ( 430).
• 633 CSi L- Jetronic ( 09/77-05/79 ): First Remedy brought the displacement increase to 3.2 liters of 633 CSi that due to the 630 CSi from the principle adopted package of measures only led to an increase in power to a PS, but due to revised total voting now enabled better performance. That being said now included air conditioning and leather upholstery to the U.S. standard. Number of units sold: 687 ( 776 ), of which CAL 237 (269 ).
• 633 CSi Motronic ( 07/79-09/84 ): Thanks introduced by Bosch in 1976 Lambda probe could now be replaced by the catalytic emission of diffizil -to-use thermal reactor, there was also no secondary air injection and exhaust gas recirculation and the special CAL model. The control of the engine management and exhaust aftertreatment took over the new Bosch Motronic that existed in the 633 CSi only for the U.S. market. Thus, the power delivery was achieved despite the same retarded motor power finally be significantly improved driving performance were now befitting: 8.4 seconds for the U.S. standard sprint from 0 to 60 mph, and a top speed of 124 mph (200 km / h). From the 633 CSi U50 total of 5553 ( 4131 ) vehicles were sold.
• 635 CSi and M6 ( from 1985 or 1987): Since the catalyst was proven by now, have been for the U.S. versions of the 635 CSi and M6 later installed diverging from the European ( Kat ) models more technologies, the differences are only even in the field of interior design and the bumpers. From U.S. 635 CSi 3713 ( 9289 ) vehicles were delivered, by the U.S. M6 1767 vehicles.

L6 and M6

The 635 CSi was offered in the U.S. and Canada from model year 1987 with the low-compression engine and standard catalyst under the sales name BMW L6, the interior, however, was (completely leather-covered lot size, whether interior, rear air conditioning, electric seat adjustment, etc. ); from the second facelift (CS / 2) was the car then 635 CSi, and for the interior of the leather-wrapped instrument panel accounted for.

The M6, which was offered to coincide with the European Kat - M635 CSi only from 1987 model year in the U.S., had to the standard sports seats the same interior as the L6. The models in North America had, as well as in Japan, in the front grille and on the boot lid a / / / M6 emblem ( the three forward stitches stand for the three blue, purple and red in the former BMW Motorsport colors, the oblique color bar before the letter M) in Europe stood here only it does it on the trunk lid present / / / M emblem.

The L6 equipment was offered from the second facelift in 1987 and in Europe for the 635 CSi and M635 CSi as so-called Highline equipment, in Germany at a price 11275-12500 DM

Specifications

BMW

Specified performance and weights for standard vehicles without optional equipment and with a manual transmission, values ​​in () for vehicles with automatic transmission. Sources: Unless otherwise indicated, all values ​​are taken in the text and table part of operating manuals and sales brochures. The dates given in the table without further designation shall apply to the production, which usually started shortly before the respective official shipment schedules; the data in the text refer to the delivery periods. Since, for reasons of clarity, not all changes for the model year runs are given, it may be deviations from the values ​​given here. This is especially true for the consumption of data for which it ( from 1979) or 4 -speed automatic transmission ( 1983 to present electronic- hydraulic control with 3 driving modes ) are due in the meantime introduced 5 -speed manual transmission with protection characteristics to occasionally clear deviations can; until 1980, the consumption values ​​were specified in detail, previously only the values ​​of thirds.

Alpina

Since 1978 Alpina is an independent vehicle manufacturer and assigns as such own chassis numbers, all Alpinas two chassis numbers from 1978: the "original" of BMW and the new Alpina; in the vehicle documents but the Alpina number is registered.

The E24 in film and television

Currently, the 6 Series as a company car by Benno Mountain Hammer ( Ottfried Fischer) in the television series is to see ' Der Bulle von Tölz ', in the television series Dallas drove Cliff Barnes ( Ken Kercheval ) in some seasons an E24, even in the movie Lammbock runs one of the protagonists an E24, which is often to be seen there. Also drove Cybill Shepherd and Bruce Willis ( lead role ) in the American television series The Moonlighting a BMW 633 CSi in gold, just goes Avery Brooks as Hawk a black 6 in the U.S. series Spenser with Robert Urich. An attractive model of the E24 in red is in the movie " Lethal Weapon 2 - focal point of LA " Riggs and Murtaugh to be seen in a wild chase. In the movie " Back to the Future 2 " runs a tight ship with a BMW 633 CSi, which was transformed into a futuristic convertible, before the " Cafe 80s ". In the film "Fire and Ice" is a white 6- vehicle of the protagonist. In the west-/ostdeutschen relationship comedy " carom " is a convertible conversion to the 6 Series Karambolagegegner a Wartburg.