The BMW 2004 and the weaker motorized BMW 1804 cars are the middle class, which in the years 1973/1974 of BMW South Africa to replace the models 2000 and 1800 SA were built.

The BMW 2004 was the drive of the made ​​in Germany to 1972 BMW 2000 equipped. This was a four-cylinder inline engine with 1990 cc engine (bore x stroke = 89 mm × 80 mm) and 74 kW (100 hp) at 5800 min -1, in conjunction with a 4-speed manual transmission with floor shift (Type 2004) or a 3-speed automatic transmission (model 2004 A).

The BMW 1804, with a four-cylinder engine with 1767 cc engine and 67 kW (90 hp) at 5800 min equipped.

The body of the manufactured exclusively as a 4-door saloon car based on the 1700 glass . The front was with the radiator grille and the indicators of the BMW 2800 CS and the twin headlights of the BMW 520 provided. Also came from the BMW 520, the rear lights.

In two years, created 1404 copies, of which 588 with automatic transmission.