Thread: Glow plug issue
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Old 09-11-2014, 11:24 AM
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uberwasser uberwasser is offline
1979 & 1985 300D's
 
Join Date: Oct 2012
Location: Tucson, AZ
Posts: 1,097
The old relay with the fuse on the firewall does indeed work with the new plugs. At least, it should. It works on my '79.

The timer may not function as designed with the new plugs, however, as noted. I had read accounts of it before, and experienced it myself on my car. The glow plugs will stay on as long as you leave it in the glow position.

The glow plug light still functions as designed after making the transition, in that it provides an estimate of when the glow plugs have heated the pre-chambers sufficiently for an easy start.

I thing the suggestion is good to clean the contacts on your relay.
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