This ECU unit is compatible with BMW Z3 models from 1997 onwards. It has a part number of 1387625 and is ideal for those looking to replace their current unit. Made with high-quality materials, this ECU unit ensures reliable performance and durability. The unit is designed for a 12V power supply and is easy to install. It is compatible with both domestic and international models. From a 1997 BMW Z3 Convertible.