m123 engine belts 1978/1979
m123
1978/1979 databook Mercedes states
Belt A for alternator and waterpump
9.5×930 without clima
9.5×960 with clima
Belt B for powersteering
12.5×818 (as a replacement for earlier 12.5×825)
Belt C for AC compressor
12.5×1285
Belt D for air-pump
9.5×825
M103
Without AC 2175