1975 300d - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 07-16-2012, 06:34 PM Thread Starter
BenzWorld Junior Member
Date registered: Jul 2012
Vehicle: 1975 300d
Location: North Carolina
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(Thread Starter)
1975 300d

Hello all,

I just got a w115 yesterday. it has been sitting since 2005. I put a new battery in it and it started on its 4 try. i sold a 1983 240d in november that i learned a good bit from. on this one im starting over. First the glow plugs are working i think but the light on the dash never comes on when turning on the key like the 240d. i changed all the filters today and the altitude adj. was mistaken as the primer pump. so i think i have it way out of adj. but it runs just long starts. im not sure if its a glow plug issue or fuel.

thanks, dennis
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post #2 of 2 (permalink) Old 07-17-2012, 12:03 PM
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Date registered: Jun 2012
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I have a 1976 300d, and had the valves adjusted, 1800 miles ago, the mechanic knew his older mercedes and said that would help the starting , it was starting OK anyway, but all but one of the valves adjustments were out. Might consider that, and make sure your idle adjustment on the dash behing the steering wheel is adjusted, I use about 12: oclock for start.
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