K40 Relay

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Yoggi

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I understand it's something to do with activating the Magnetic Clutch on the Supercharger
 

RJR28/12

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k40 relay is located under the bonnet on the passenger side of the engine bay in the module box next to the windscreen scuttle panel.It is a big square box with a screwed on lid,and has fuses and relays in it.
 

cdesousa43

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I had a problem on a 1997 E300 diesel. The glowplug light was not coming on. i replaced the glow plug relay module and it is now working. But i read in one response that the K40 relay may be the problem. how does the k40 relay module control the glow plugs?
 

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