Ive pulled alot of 300d seats over the yrs but these have me stumped ,it has a raised platform on the back and the the rear screws when I did find them seem to be coming from underneath the car but dont see an access hole, might have to leave these for the crusher like the blue vinyl ones last month,those were mint inside a 240d , the floor was so rusty the seat bolts become one with the car.I need to invest in a battery power recipor.

Why not drill the screws out?

Or a compressed air tank..... NOT Oxygen....
and an air chisel...
just take out whatever you need....and deal with it back at home..
or if you can reach the head.. just cut it off..

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Accessing the rear screws can be tricky. The seat has to be in just the right spot. They are below the raised platform you're referring to, if I'm thinking of the same thing you are. The seat has to be ALL the way forward, and ALL the way up. See this guide, it may help clarify the process.

https://www.ifixit.com/Guide/Mercedes+W123+Front+Seat+Replacement/33146

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1979 300D 040 Black on Black - 1985 300D Maaco job (sadly sprayed over 199 Black Pearl Metallic) on Palamino

http://i.imgur.com/LslW733.jpg

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The link you gave Uberwasser is what I generally come across,the bottom seat rail with 10mm bolts on both ends ,these are the same on the front but are very strange from the back ,it has a 3 inch raised metal platform and no bolts that can be found,Im guessing a different factory was given a contract and changed things up abit or aftermarket .

Has anyone tried using a battery on the wires on the door?

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.

It sounds like the seat is not fully forward and raised. The up and down adjustment has to be fully UP and the foreward and back adjustment has to be fully forward, to get to the rear seat bolts.

I understand what you are looking at, it happens all the time in the rust belt. If the seat adjuster is rusty, or if one person drove the car its whole life, the height adjustment is probably stuck in place, or won't go all the way forward and up.

If you can find a second sets of hands, have one person hold the adjuster lever up and the second person sit in the back seat and kick or push as hard as possible on the seatback.

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Mac
2002 e320 4matic estate│1985 300d│1980 300td
Previous: 1979 & 1982 & 1983 300sd │ 1982 240d

“Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22