Transmission - BMW E34 5 series Website Four types of automatic transmissions had been used in the Bmw E34. They are electro-hydraulically controled with 4 speeds (525i - 535i) or 5 speeds (530i - 540i). Check this info if you have the lifetime fluid transmission or no dipstick. Manual transmission:BMW E34 Website · Automatic Trans. Service · E28 Project 5 speed transmission swap - BMW E34 5 series Website BMW E34 5 series, Tuning, repairs, troubleshooting. If your automatic transmission gave up, or you want to install a turbo in your car or just like the extra power, whatever the reason you might one day want to install a 5 speed transmission ino your car.