One new original VDO brand 9 pole engine relay control unit (made in Germany), part number 001.542.12.19 or 0015421219.  This fits:

Mercedes Benz 230 (W114) 1968 - 1973
Mercedes Benz 230.6 (W114) 1973 - 1976
Mercedes Benz 250 (W114) 1968 - 1976
Mercedes Benz 250C (W114) 1968 - 1972
Mercedes Benz 250 C & CE (W114) 1968 - 1972
Mercedes Benz 250W (W114) 1973 - 1976
Mercedes Benz 280 (W114) 1972 - 1976
Mercedes Benz 280E (W114) 1972 - 1976
Mercedes Benz 280CE (W114) 1972 - 1976
Mercedes Benz 280C (W114) 1972 - 1976