Unofficial BMW E24 website



Unofficial BMW E24 website

Unofficial BMW E24 website

Model Evolution


Catalytic version of 635 CSi

1985 6-Series BMW

atalytic version of 635 CSi become available this year. It produced 182 bhp at 5400 rpm and a torque of 214 lb.ft at 4000 rpm. This was good news for countries like US and Japan where the 218 bhp engine did not pass the emission regulations, and also a big improvement from the US version of the 633 CSi. Even though the horsepower rating where about the same as for 628 CSi and US 633 CSi, the 635 CSi with catalyst had more torque and was more elastic to drive.

M635 CSi

1985 BMW M635 CSi

The M635 CSi continued with the same specification as from the previous year.

Good news for countries that still drive on the wrong side of the road (like UK) was that the M635 CSi was now available in right hand drive (RHD).

1985 BMW 635 CSi. RHD cockpit

The RHD 635 CSi cockpit with the automatic gearbox.

635 CSi in Sweden

Noticeable is that up to, but not including, this year some countries, including Sweden, had (re-)labeled the 3.2 litre 633 CSi and sold them as 635 CSi's! These models where equipped with options that where standard equipment on the original 635 CSi, except for the engine. So watch out if you intend to buy one of these early (1978-1984) 635 CSi models it might be a 635 CSi with a 633 heart!

Further noticable, and maybe unique for Sweden, was that even though this was the first year the 635 CSi become a true 3.4 litre model, it did not get the original spec. 3.4 litre 218bhp engine! Instead it got the same engine as the 735 i had, which means a power output of 204 bhp at 5500 rpm with a torque of 229 lb.ft at 4000 rpm.

This may sound strange, since the catalyst version was available, but could be explained with the fact that it took time to “certify” the catalyst engine and in the mean time the engine from 735 i was clearly a better option than the 3.2 litre engine from 633 CSi.

New option available

Supplemental Restraint System (SRS) with driver's side airbag showed up for the first time in the second edition (2/85) sales catalogues, i.e. available in late 1985 models.

1985 6-Series BMW. Drivers side airbag

SRS with drivers side airbag.

Production numbers for 1985

Model Units
628 CSi 304
628 CSi A 160
628 CSi RHD 16
628 CSi A RHD 113
635 CSi 1061
635 CSi A 892
635 CSi RHD 66
635 CSi A RHD 566
635 CSi Cat 255
635 CSi A Cat 203
635 CSi USA 1457
635 CSi A USA 2268
635 CSi A Japan 502
M635 CSi 1477
M635 CSi RHD 286
Total: 9626




[an error occurred while processing this directive] 1985 BMW M635 CSi. 3-spoke steering wheel
1985 BMW M635 CSi. Engine

See also

1985 interior & exterior colors

1982-89 suspension

6-Series interior

Photo gallery

E24 distinctive features


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