97 740il known problems

I'm in negotiations with a dealer about purchasing a 97 740IL with 91K miles.
Is there anything I need to be aware of, or any known problems?

I have 230,000 miles on my 740il. at about 100k you can bet on replacing your radiator, suggest you get them to do it before you buy, I have replaced mine at 100k and 200k. other critical issue: every 100k you need to retighten your oil pump bolts, need to drop lower oil pan. if you dont you will suffer sudden loss of oil pressure and loss of engine. mine were lose at 100k and 200k. Check your shocks, mine went 200k. otherwise a great car.