How to check condition of glow plug? - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 09-09-2007, 05:30 PM Thread Starter
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How to check condition of glow plug?

What is the proper way to check the condition of the 110 series diesel glow plug? These are from a 1966 200D. This is the style with large glow plugs and appears to have series wiring. AFTER I tried to check across a 12 volt battery without any results, I realized these plugs may not be suitable for 12 volts. THEN I read the fine print on the glow plug and see it is marked 0.9 V. I assume this is 0.9 volts.

Anyone able to tell ne how to properly test these glow plugs?

1973 280 W114 (Driver - 140,000 miles)
1974 280C W114 (Now running - driven off and on this summer)
1968 200D (Engine rebuild planned)
1964 200 (gasser parts car) & 1966 200D (complete car - Got to run. Now to see if clutch can be repaired.)
1980 300D W123 (Parts car - engine runs, but trashed)
1981 240D W123 4 speed ( In sad shape when bought - many parts from '80 300D has back on the road. Needs work, but shows promise.)
1988 300TE W124 (Does not run. 180,000)
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