Mechanics

GLOW PLUG REMOVAL

1984 Mercedes Benz 300sd • 2WD Automatic • 200,000 miles

What tool do I need to remove glow plugs on a 1984 MBZ 300SD TD. They will not budge.
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Nikeylynn
March 10, 2011.



What tools have you tried?


Tiny
Fixitmr
Mar 10, 2011.
Your glow plug should be the same as the one in the pic, if so you undo the power lead and un screw the plug, often the heater bulb is encrusted with carbon, this is more common on older cars, take your time and carefully work it in and out after it has unscrewed and it should come free.


Mhpautos
Mar 10, 2011.
Yes pencil type, but what tool do I use to unscrew glow plug. Will not move at all.


Tiny
Nikeylynn
Mar 10, 2011.
I use a deep socket and a breaker bar, they should move with a bit of extra effort, I have never broken one yet, may be spray a little WD40 around the threads and let them sit a while.


Mhpautos
Mar 10, 2011.