I'm selling this 190E 2.6 for a relative. I need to fix two things for the sale. The first is to figure out why the A/T shifter is so stiff. Not only with fore and aft movement, but lateral movement (out of the gates), too. I can hear the linkage *clanking* under the vehicle. Haven't put the car up yet to check it out. Just seeking some info on what to look for and possible causes. I used to be a mechanic (very little German car experience), but don't have a service manual for this vehicle. Any info would be helpful before I crawl under. The other item is to replace the A/T shifter indicator lamp. I found instructions on the archives here, so I think I'm set on that.
Thanks.

1990 190E 2.6