From the autumn of 2000, the class 420 trainsets, some of them over thirty years old, were replaced massively by new vehicles of the class 423.
The new vehicle emissions were enforced line by line, as the trains could not be coupled with each other.
First, the S 7 line was served by the new locomotives.
By 2003, 211 locomotives were delivered.
In 2004, another 23 units were procured.
In 2005, four more trains were delivered, so today there are 238 traction vehicles.
From the autumn of 2000, the class 420 trainsets, some of them over thirty years old, were replaced massively by new vehicles of the class 423. The new vehicle emissions were enforced line by line, as the trains could not be coupled with each other. First, the S 7 line was served by the new locomotives. By 2003, 211 locomotives were delivered. In 2004, another 23 units were procured. In 2005, four more trains were delivered, so today there are 238 traction vehicles.
Munich S-Bahn