Unofficial BMW E24 website

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Unofficial BMW E24 website

Unofficial BMW E24 website



Theory
Model Evolution

1982

Reworked body and chassis



1982 BMW original sketch

By the 1982 the 635 had been modified in a number of fundamental respects. Perfomance was a little better thanks to a consistent diet and subtle aerodynamic changes.

B

ody and chassi developments that started some years ago made it´s debut this year. An average of 60kg/132 lbs was reduced from the body, giving a total weight of 1430 kg for all models. The modifications not only made the car lighter, but also a lot stronger. BMW had spent a lot of time (and money) in laboratory simulations and crash tests that finally resulted in the completely reworked and stronger body shell.

Chassis engineering

The most noticeable changes to the chassis was a new front and rear end adopted from the 5-series (that got the same setup a year earlier). The front end got a full double link suspension and the rear end got a new 13° trailing arm layout with an additional top mounted link. All toghether it was a package that improved the road-holding quite significant.

Further news on the chassis was that the ABS breaks that had been optional since 1979 now become standard for all 635 CSi models, but still goes as option for 628. It was a standard for all models since September 1984.

New engine for 635 CSi

The somewhat overbored 3453cc engine for the 635 CSi was found to have some service problems, this was also the reason why BMW developed a new engine for the 635 CSi.

The new engine was developed from the 3210cc unit found in 633 CSi. It had the same 86 mm stroke but a new 92 mm bore, giving a total of 3430cc.

The power and torque remained the same as it's precursor, thanks to a new version of the DME unit and a higher (10:1) compression ratio. The new DME had a new graph to control the warm-up cold start phase and the idling speed was reduced by 50 rpm.

All this, together with a standard overdrive five speed gearbox reduced the fuel consumption about 15%.

Interior

The interior was reworked with a new three spoke steering wheel, a new dash layout including a Service Interval Indicator (SII) , electric fuel economy indicator , new layout of the Check Control system.

Standard in 635 CSi but optional in other models was a new 10 function On-board computer (OBC).

Exterior

The exterior was left almost unchanged, most noticeable was that the fog lamps where integrated with the front end panelwork, on the 628/633 CSi that is. The 635 CSi still had the fog lamps mounted in front of the front spoiler.

1982 6-Series BMW. Front spoiler
1982 6-Series BMW. Front spoiler

633 CSi no longer available in Europe

The 633 CSi was still in production, mainly for Japan and USA, but it was not available in Europe.

6-Series in USA

1982, was when the US received the later style intake manifold with the 3.2/3.5 casting. The interior and exterior were not updated until 1983.

Production numbers for 1982

Model Units
628 CSi 613
628 CSi A 266
628 CSi RHD 53
628 CSi A RHD 179
633 CSi USA 1102
633 CSi A USA 933
633 CSi A Japan 299
635 CSi 2400
635 CSi A 1009
635 CSi RHD 165
635 CSi A RHD 574
Total: 7593

Source: Bmwcoupe.nu

Content

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[an error occurred while processing this directive] 1982 6-Series BMW. Fuel consumption indicator

At the bottom side of the tachometer there's a new fuel consumption indicator.

1982 6-Series BMW. Central console
1982 6-Series BMW. Instrument cluster


See also

3453cc engine in 635 CSi


Check Control panel


On-board computer


1982 interior & exterior colors


E24 distinctive features


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