Thread: 76 300d w115 pre glow light not coming on
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Old 05-31-2016, 10:43 PM
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Location: Hubbards, NS
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Hello,

When you turn to the key to where you would be glowing the glow plugs, measure the voltage at the #5 glow plug (black wire). If the voltage is 12v then you have a bad glow plug somewhere (check each plug and resistor bar), if it's roughly 10.5v then the plugs are ok, if it's 0v its either the relay or the power feed to the relay is bad.
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Marc-André

W115 1975 300D "Geraldine"
W115 1976 300D parts/tutorial car
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