hello . so to help me better understand, the bolts holding the motor mounts routinely strip out when you try to replace the motor mounts on a 300d.the reason i ask is because mine have collaped completely, to the point where the metal where the arm meets the mount is bent up . it will literaly empty the washer fluid resivoir it shakes so bad.i plan on replacing both sides next week.

I would not call this a "routine" motor mount problem.

The 8mm bolts, which secure the hanger arms from below
through the motor mounts, require hex keys
for access through the double walled sheet metal
center frame segment.

IF one uses a 5/16" key <.312"> to tighten a 8mm bolt <.320">
one can get it's socket head rounded out enough that the next person in gets
pretty annoyed, and is required to get pretty creative at getting
the hardened factory bolt, surrounded by a rubber disk 1-1/2" thick,
and buried within two thickness of sheet metal -- out of there.

It ain't pretty. Its easily checked by loosening them with a 8mm
hex bit socket on a standard 6" 3/8" drive. A 3" extension helps.
If they're "tight as h*ll" then they're way overtorqued. If the 8mm spins
or can't be engaged -- you have a problem. Takes 5 minutes. Don't even
have to jack the car up, once you know where they are.

__________________
--frankb

1982 300TD 617.912 <NLA> . 1975 2002 E10-EFI . 1976 914c6 . 1983 MG LMIII <NLA>. 1988 Montero / 616<NLA> . 2001 TLS . 2005 Saab 9-5 Wagon