88' 750iL problems?

[bimmerskickass2]

I am in the market for an E32 735iL or 750iL for my first car and was after any information about common problems and what i should look out for, there are a couple of areas which concern me as to the problems and price for repairing it eg. Auto-Leveling Suspension.
I am looking for any information about any problems you may or may not have had because as you can imagine as a first car i want something i do not have to put all of my money into to keep it on the road, i understand that regestration, insurance and servicing will be up on the 750 as compared to say the 735 or a smaller car even.
I have done a lot of reaserch and i know all about the fuel consuption and stuf like specs and all, all the normal stuff.
In the following list i have made, i wanted to know if anyone has experieced any problems with the following;

• Auto-Leveling suspension (how does this work by the way)
• The electric seats (the one i am looking @ has them front & rear)
• Limp home mode (what causes it and how does it work)
• Any other engine problems (mechanical or electrical)
• Any probs with the auto box (4speed std)
• OBC failure or fault

if you have expirienced any other problems could you please tell me because i dont want to buy a car and overlook some important and expensive aspects. I plan on taking it to a dealer to be checked over of course.

But if you can give me any information regarding any problems please,
it will help me a great deal and may save me lots of money.