I have searched high and low looking for the name of these things, only interested in the Drivers Side, I need to know what it is called so I can ask yall where to find one and what and how many and what type of clips I will need to install.
Thanks and Merry Christmas

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Collector of Fine Hose Clamps
'77 240D 'AVA' is in heaven now
'80 240D Kanarienvogel
'82 300TD 343k was my daily driver 'ADOLPH' In Surgery for a severe Deer Bite to the Nose
'88 560SL 102k 'White One'

Eazy peezy ... sail panel

Go to epc.startekinfo.com and register for EPC. It's free for US residents, you just have to provide a credit card to prove you live in the US. It will authorize a $1 but will not debit your account.

That gives you an exploded view of your entire car based on the VIN. From there you can find every part in the car. It's the same system they use at the parts counter.

Once you have that info, use the 3-3-2-2 format part number to search on eBay. Some people use dashes, some use spaces, and some just run it all together, so you will need to try all three ways.

Extra bonus tip: The first three digits are the chassis series of the car. Some parts carried over from one chassis to another, so don't worry if the number doesn't match the chassis of your car.

The second three digits are the workshop manual system identifier number. These numbers correspond to the online FSM chapters. The online FSM is at startekinfo.com, click on MB workshop resources, scroll through several pages to find 123 Chassis service info.

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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

C-pillar cover or trim.

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

About any upholstery shop can make that or recover what you got.
Check in your area with automotive upholstery shops and see what they say.