Glow plug lamp inop - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 12-09-2013, 08:19 AM Thread Starter
BenzWorld Newbie
Date registered: Dec 2013
Vehicle: 1976 300d
Location: Asheville
Posts: 1
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Glow plug lamp inop

Hello, i have a 76 300d. my glow plug light was not working so i check the plugs and #1 was open. i repalced all the glow plugs with bosch and checked them. all working and car starts fine. the glow plug light is still not working. i pull the cluster and replace the 191 bulb. still nothing. im leaning toward the glow plug thermostat switch but wanted to check. it seems every search i find is for people that changed to pencil plugs. and i cant locate a wire diagram either.

thanks for the help
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