Quick checkout list needed for 4000

[Mike Arman <armanmik@n-jcenter.com>]

4000 Gurus:

Tomorrow AM as Audi expert-in-residence (Wha? Who, me?), I get to go look
at a 1986 Audi 4000 which a friend of mine is interested in buying. 100K
miles, 5 speed, 4 cyl, sunroof, probably 2WD or the seller would have
mentioned it's being Quattro.

Need a short list of known trouble spots on these cars - I know my way
around 5000's fairly well, but am only a "fellow traveler" when it comes to
4000s.

I check the list 2 - 3 times a day, so if you reply to the list, I'll get
it in time. Direct replies always appreciated as well.

Best Regards,

Mike Arman