Hello together, In my 300 GE (1990) all brake lines should also be replaced. I bought KuNiFer cables. Brake line Ø 4.75 mm copper / nickel Kunifer 1m 2m 3m 5m or 10m Selection: (5 meters) https://www.amazon.de/dp/B00S52G9O6/ref=cm_sw_r_cp_api_zHtozbPJSNBRW Do you have any experience or advice about this completely?(Safety critical?) Unfortunately, I could not get any information at the national inspection office in Austria. However, eferant is not familiar with the legislation in Austria either. In case of a full braking I want 100% safety!