can some tell me what the glowplug is for in a 1975 Mercedes Benz 240?

i need to know what the glowplug is need for ...its function in a 240 mercedes benz 1975
Christine Hagan, August 2005


done
A glow plug preheats the diesel fuel before it enters the combustion chamber. Diesels are somewhat hard to start during cold weather without a glow plug. Hope this helps

Tom, August 2005
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