Can someone identify this filler cap ? - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 09-22-2010, 09:16 PM Thread Starter
BenzWorld Member
hellgrace5's Avatar
Date registered: Feb 2009
Posts: 89
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
Can someone identify this filler cap ?


I have this expansion tank filler cap of W140 S500.

Part number #A 000 501 82 15

How many O ring should be attach with the filler cap ?

Mine came with only 1 " O " shaped O ring. And the O ring is quite loose not fit.

Someone told me it should be the square type O ring.

Exactly what kind of O ring should fit in it and how many ?

hellgrace5 is offline  
Sponsored Links
post #2 of 3 (permalink) Old 09-23-2010, 07:59 AM
BenzWorld Elite
Kajtek1's Avatar
Date registered: Dec 2005
Vehicle: W211 E320 Bluetec R129 SL500 - $1300 car ........ Ford F350 6.7l
Location: Vegas MAN, Vegas
Posts: 32,368
Mentioned: 10 Post(s)
Quoted: 1248 Post(s)
Can't figure out what cap model it is, but caps work with compressed gaskets, so oring, or square -both will work if they are correct thickness. You should have only 1 oring for sealing the cap on the pipe, but the cap might have pressure valve build in it with more parts.
Kajtek1 is online now  
post #3 of 3 (permalink) Old 09-23-2010, 09:29 AM
BenzWorld Elite
Date registered: May 2005
Vehicle: '07 GL320CDI
Location: Albuquerque
Posts: 5,070
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
If you live in USA you can look it up yourself here:

Kent Christensen
'07 GL320CDI
lkchris is offline  
Sponsored Links

  Mercedes-Benz Forum > General Mercedes-Benz Forums > General 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
    Which side is your filler cap on? eric242340 Off-Topic 52 05-25-2010 08:10 AM
    Oil filler cap removal Musikmann W210 E-Class 20 02-19-2008 10:12 AM
    A class+filler cap cod W168 A-Class 1 01-20-2006 06:56 AM
    Fuel filler cap (Gas cap) types26/36/74 R170 SLK-Class 2 09-28-2005 12:46 PM
    Oil Filler Cap ychachad W140 S-Class 1 08-04-2004 08:32 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