Can I use Gleitepaste to lube the door jams? I'm guessing yes but want to be certain. Searched on lubricate door jams and saw a ton of information but no specifics on Gleitepaste

Is there a definitive repair manual for the R129 and is RepairSurge a legitimate option to fill the gaps of the most excellent list provided as a sticky here?

Even I don't do a repair I would like to have a better understanding in general and as to what specifically may be the certain things to watch out for and of which to keep on top with this particular gem.

Also in that regards, can anyone direct me to a list of the core issues with the R129 of which to be wary?

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1991 300SL 71K miles young