What can I use to seal my Tail Lights? - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 08-01-2011, 12:17 PM Thread Starter
BenzWorld Member
Date registered: Feb 2011
Vehicle: 1973 220D
Location: California
Posts: 295
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
(Thread Starter)
What can I use to seal my Tail Lights?


I have a 1973 220D - although I don’t think that matters.

My problem is my tail light is filling with water because the seal (the gasket between the lens and the tail light housing) is completely shot. The old gasket looked much like a white O ring - it had no particular shape. It was about 25mm (1/8”) diameter and maybe slightly fatter when it was new and it still very pliable (just falling apart).

The lens and the tail light housing look to be in pretty good shape (after I cleaned out the considerable crud that had collected in there) But I cannot find this gasket available anywhere. New lens or whole new tails light (housing and lens) are available for a few hundred $$

Does anyone have a source for the original gasket - or even a generic product I could use - like a large O ring - probably softer and more pliable than traditional O ring.

Has anyone used a silicone sealant product? (like from a tube) Is there one that will not stick (we want to keep the water out - we DO NOT want to glue the lens on.

Thanks very much,
Attached Images
frankflynn is offline  
Sponsored Links
post #2 of 5 (permalink) Old 08-01-2011, 12:44 PM
BenzWorld Veteran
Date registered: Nov 2008
Vehicle: 1981 300TD 310k--1966 230 165k--1970 280se 172k
Location: Ohio City, Ohio
Posts: 623
Mentioned: 1 Post(s)
Quoted: 33 Post(s)
Try a thin closed cell weatherstripping (black rubber) with an adhesive backing from Home Depot or Lowes. Put the seam/joint toward the bottom.

I'd also be tempted to try some rope caulk, but I'm not sure how it would hold up with the heat.

1981 300TD--310k miles
1970 280sel--172k miles
1966 230--162k miles

Last edited by carpenterman; 08-01-2011 at 09:00 PM.
carpenterman is offline  
post #3 of 5 (permalink) Old 08-02-2011, 12:38 AM
BenzWorld Elite
Grubeguy's Avatar
Date registered: Jan 2006
Vehicle: 73 280SE 4.5, 71 300SEL, 03 BMW Z4, 72 Fiat 850, 80 Triumph TR7, 85 Porsche 911
Location: DC Area
Posts: 2,103
Mentioned: 1 Post(s)
Quoted: 95 Post(s)
Send a message via MSN to Grubeguy Send a message via Yahoo to Grubeguy
Try the thin foam weatherstripping, with the seam at the bottom. It's what I use on my 108
Grubeguy is offline  
post #4 of 5 (permalink) Old 08-03-2011, 12:14 PM Thread Starter
BenzWorld Member
Date registered: Feb 2011
Vehicle: 1973 220D
Location: California
Posts: 295
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
(Thread Starter)
Foam weatherstripping seemed to work

I did the foam weather stripping.

I was also tempted by the caulk rope - I think it would have worked fine but would have been kind of gooey or stopped working after I had opened the light a couple of times. (maybe not)

The foam has some structural strength so I could pull it out and put fresh stuff in in years to come. (or so I think now).

I had to cut it down to the correct width to get it to fit but it does seem to seal quite well. For under $3 too!

frankflynn is offline  
post #5 of 5 (permalink) Old 08-03-2011, 09:06 PM
BenzWorld Elite
wbain's Avatar
Date registered: Dec 2003
Vehicle: 1965 220S, 1999 Volvo V70 (wagon), 2006 Ford Crown Vic Police Interceptor, 72 350SL 4 Speed
Location: Near Manassas Va.
Posts: 1,830
Mentioned: 0 Post(s)
Quoted: 3 Post(s)
Try drilling a small hole where the water collects.

Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant

wbain is offline  
Sponsored Links

  Mercedes-Benz Forum > General Mercedes-Benz Forums > Vintage Mercedes-Benz

Quick Reply

Register Now

In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


  • Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
    Thread Tools
    Show Printable Version Show Printable Version
    Email this Page Email this Page
    Display Modes
    Linear Mode Linear Mode

    Similar Threads
    Topic Author Forum Replies Last Post
    Just replaced 04 tail lights with SL55 tail lights taickieu R230 SL-Class 7 11-14-2010 03:50 PM
    Head lights low beam and park lights and tail lights kojo W202 C-Class 5 09-14-2010 06:03 PM
    Senors - Parking Lights, Head Lights, Tail Lights Erotic1 C215 CL-Class 1 03-16-2009 08:39 PM
    Any interest in trading W123 US tail lights for Euro tail lights? Dr.Grillz W123 E,CE,D,CD,TD,TE Class 4 05-01-2007 04:45 AM
    Those tail lights for a w220 are not unique at all comparing to these S-Class Tail Lights Guest (MBNZ) W220 S-Class 7 06-14-2002 08:17 PM

    Posting Rules  
    You may post new threads
    You may post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are On
    Pingbacks are On
    Refbacks are On


    Title goes here

    video goes here
    description goes here. Read Full Story
    For the best viewing experience please update your browser to Google Chrome