Nothing that has ever stranded me on the road.
Coolant hose busted.
Struts started leaking. Upgraded cheaper than stock.
Oil pan leaked oil.
Rear transmission seal leaked.
Both tie rods replaced.
Shifter rebuilt. Upgraded cheaper than stock.
Cracked dash from sun.
Cruise control broke (who cares)
Everything that goes wrong is easily repaired and upgraded. Engine is super strong, and build for many years of service. This car can take severe punishment like no other. Extremely cheap to maintain even with the dealer (scum alert). Once a year service with synthetic oil allows to do whatever you want mileage wise. As long this car is maintained, I hope it lasts forever.
Your 1986 BMW 325es will last forever with the kind of maintenance you have been using.
I had the exact same problems except for the coolant hose and my suspension was shot when I bought it all the way around. Oh well. Do you happen to know the mpg of these things? I've been looking for a half an hour; I just bought mine. Thanks. :)