Newby with questions

[Harry Hargrave <d7nn7s@xxxxxxxxxxxxxx>]

Hello
  I just bought my first BMW car (used).Its a 92 535i
with a 5 speed and factory alloys.The car appears to 
well cared for,though its showing 161K miles.I paid a 
very good price for it as it was an "unclaimed impound."
  My previous experience with BMW cars was rebuilding
a 2002 engine as well as some chassis,driveline,and
suspension work.There was also some work on a 320i.
Both cars belong to a friend.(he still owns both).
I bought a new R60/5 in 72 and kept it for several yrs.

 1)The 535i runs with the temp. gage at about 1/2 its
   range(straight up).Is this normal? or it approaching
   over-heating?
 2)If its near overheating,are there any likely trouble
   areas?(fresh thermostat,belts good,coolant topped up)
 3)any recomendations for parts,owners manual,shop
   manual,etc?
 4)Other than the expense of a dealer,is there a way
   that the codes for the audio system can be obtained?
   (oddly enough,I did get the "new owners" audio tapes
    with the car)  
 5)What sort of longevity could I expect from this car
   at 161K?
 6)What should I check or be watchful of,at this point
   in the car's life?

Thank you in advance for the help.I'm sure as I become
more familiar with the car,I'll have more questions.

Dennis
92 535i
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