4L30E

The 4-speed automatic transmission 4L30E is the successor of a reliable 3-speed transmission 3L30E, which has been used since 1969. These transmissions were made in the USA and in Europe (Strasbourg) under the name AR25 for RWD Opel Omega and AR35 for a 3-liter Katera.

The 4L30E has been installed since 1990 on RWD and AWD BMWs of all series with engine capacity of up to 3 liters, but it was more widely used on GM, Opel Omega, Isuzu and even on Honda Passport where it proved to be highly efficient.