ES
The ES trim level was supposed to be the base level available for the European E46s from 2003, however, it included various safety features as standard equipment, such as anti-lock brakes, 6 airbags, dynamic stability control, and a factory installed alarm which were not common as standard features when the E46 was released.[23] Comfort items such as heated and electric mirrors were also fitted standard.[23] The ES trim did not include cruise control, a multi-function steering wheel (MFSW), leather steering wheel or gearknob, although these were offered as "at-cost" options.[23] For a short period during 2003 BMW offered optional extras for the 320d & 330d Touring from the M-Tech Sport range including M-Tech Sports suspension and when this option was selected the leather M-tech gearknob & steering wheel were included in the upgrade.
SE
The SE trim level included the options the ES trim level was given, but added cruise control as part of the multi-function steering wheel, headlight washers, parking sensors, leather steering wheel and gearknob.[23] It was the mid-range trim level that offered luxury items, but lacked the sporting items the M Sport and M Clubsport trim levels had, although the drivetrains of both SE and M Sport models were identical.
