Greetings,
New to your forum.
If all works out I will be picking up a one-owner, dealer maintained 1986 190D with 148K miles on it next week
. I will start reading diligently about any issues common to this somewhat scarce 5 cylinder diesel. The one big change the car will get right away is a dose of Biodiesel and maybe a fuel filter change.
Look forward to any advice you may have.