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1985 Mercedes 1900 2.2 diesel lights on dash are

1985 Mercedes 1900 2.2 diesel...
1985 Mercedes 1900 2.2 diesel idiot lights on dash are intermittent glow plug light doesn't come on at all. Car starts and runs if I plug in block heater.
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3/19/2018
Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 55,216
Experience: Bosch Certified Master Tech. Over 35 years experience.
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Hi David, my name is***** do you mean by "idiot lights on dash are intermittent"?

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Customer reply replied 4 months ago
Some tomes they don't light up when you turn key to on position

Ok, that would typically be caused by a bad ignition switch or a bad fuse connection. Remove and inspect fuse #9 for the warning lights. If the fuse is good you will probably need to replace the switch. On your starting problem you will need to see if the glow plugs are getting 12V when you turn the key on. If you have 12V to the glow plugs you more than likely have one or more bad plugs. When a glow plug fails it causes the glow plug light to stay off when you turn the key on.

Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 55,216
Experience: Bosch Certified Master Tech. Over 35 years experience.
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Customer reply replied 4 months ago
Ok thank you will check

You're quite welcome. I'll be here if you need anything.

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