Everytime I turn on lights the left tail light doesn't come on. If I tap the lens it illuminates. I've replaced the bulb but problem still exists. Any suggestions? Thanks

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1996 S320

the rear tail light assembly is notorius for contacts loosening causing this type of problem. you might want to carefully inspect and clean out the socket in question. a little creativity with shims / springs might solve your problem. be careful with the bottom contact - it can easily snap off if you try to pull it up. the entire assembly is a $300 item so it's worth fixing...

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joE
1993 300e-2.8 - gone now <sigh>
"Do not adjust your mind, it's reality that's malfunctioning"
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I have also had luck with the packets of bulb grease, $.49 at auto zone. After cleaning/repairing.