Like others said, check the relay fuse, which is just a metal strip,
then use a multi-meter to check each glow plug. You can check the glow
plugs at the relay by removing the the large plug on top of the relay,
and check each individual socket/glowplug for Ohms. It should be
obvious. Usually, the good one's will show full open "0" and a few will
show something else. Some like to change them all at the same time,
other's just replace the bad one's and keep some spares in the trunk.
Bosch are good, avoid Autolite.
Rob
'85 300D
Garden Grove, CA
==
On 8/3/12 5:04 AM, diesel_mercedes@yahoogroups.com wrote:
> Glow plug question
> Posted by: "Carmine"drnickv@sbcglobal.net drnickv@sbcglobal.net
> Date: Thu Aug 2, 2012 8:16 am ((PDT))
>
> How does the glow plug system work in a 1984 300D. The car will not start and the yellow light is not coming on on the dash. It was fine yesterday. Today no go. Want to get her fixed quickly. Valves have been adjusted within last 1000 miles so I know it is not that. Fuel filter also changed 100 miles ago. Car is smoking so I know she is getting Fuel.
>
> Thanks, Nick
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