At the moment our vehicle fleet consists of 650 quarter trains of three different production series: the majority are the 500 quarter trains of our youngest 481 series, which was first used in 1996. There are also 70 quarter trains of the 480 series and 80 quarter trains of the oldest 485 series, which was put into service in 1987.
To ensure that everything runs smoothly until the implementation of the new 483/484 production series, the S-Bahn 480 and 485 series are given a comprehensive safety and reliability check.
A "50-Step Check" makes the red and yellow classics fit for further use until 2023. This is a contractual agreement made by the states of Berlin and Brandenburg with the S-Bahn Berlin, which also includes the new contract for the Ring/Southeast sub-network.
Over a period of four years, local railway transportation authorities will invest around €150 million in the upgrading of 70 series 480 trains and 80 series 485 trains. Most of the revamping will take place at the S-Bahn’s plant for heavy maintenance in Berlin-Schöneweide.
State Secretary in the Brandenburg Ministry of Infrastructure and Planning
Inspections for the 480 series include the powertrain, gearbox, and bogie frame.
In addition to the many small repairs, the 485 series requires minor interior modifications to make the vehicle lighter. This is mainly due to new technology, such as the operator assistance system, FASSI, that adds extra weight to the vehicle.
The S-Bahn has also launched a program to increase the longevity of the 481 series. This series will be the backbone of the vehicle fleet until the new fleet is introduced in 2033.