A word of advice about ground straps, click and clack and EGT sensors.
This weekend I had the trans out of the w124 to replace the clutch. Well I got it out Friday night and came back Sat to finish it up. Click and Clack, the Tappet Brothers, were on the radio but my fancy HD radio in the w123 kept fading out. SOOOOO. I tried to turn on the radio in the w124.
It came on but suddenly I saw a large quantity of smoke and smelled ozone. WTF I said and went running for the extinguisher. Seeing no flame I waited for the smoke to clear. Apparently lacking a ground strap, the glow plug system picked the shortest route to ground, which apparently was the metal sheath on the EGR probe.
Just a word of caution, when you unhook that battery to do work on the car, leave it unhooked until you are done, no matter how much you want to enjoy in hearing about the misery and tribulations of other car owners....
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