380 SLC Coupe R107 09/1980 - 08/1981 M116.960. 380 SEC W126 11/1981 - 08/1983 M116.963. This is probably because of modern fuel additives & the introduction of ethanol into fuel. 380 SEL W126 10/1980 - 08/1983 M116.961,963 (CDN, USA).
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0438100089 Repair Kit for Bosch Fuel Distributor Mercedes 380 SE SEL 450 SE SL