the bulbs on my passenger side tail light keep falling out of the socket thing. probably co-incidence but it didn't start until recently...when i replaced the lens.

it seems that the socket just isn't tight enough...or is there some trick that i'm missing?

Ok, what year/model is the car??

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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech

We have no idea what car you have. For most, you can just bend the electrical contacts w/ a little screwdriver to tighten them. Worst-case, on newer cars w/ all plastic terminals, I would super-glue an LED bulb in since it should last forever.

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1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans

Clean the terminal with sand paper, bend it up as Bill suggested, and it should be OK.

The bulb has two feet that go into slots in the holder. You push the bulb in, and then twist it 90 degrees. That locks the bulb in place.

I agree with others. Just bend up the metal strip that makes contact with the bottom of the bulb. That will increase the tension between the bulb's little nubs and the socket.

Good luck!

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Baton Rouge, LA
1977 300D Non-Turbo