Thanks Insomniac and moots...I do read your thread multiple times and I really wanted to be like you with the same 1997 M52 528...
and I do think about the maintenance as the owner honestly told me that the engine & box never been opened since owning the car, (he is a 2nd owner, bought the car in 2004). The good thing is he do keep mountain of bills for me as a reference, and religiously maintained the car with Ah Meng of M Speed, of with I felt a bit secure..as for the M52 & M54 issue, well I'm still driving my old lady with M50 non vanos with no problem!
bro moots..I prayed that you will noticed this thread and chips in...as some people says that you're a "walking dictionary"....now I understand more, it either M52 or M54..of course I need to fork more for M54 (double the price)..
when I test-drive the car, the engine & box run smoothly, but there is clunking sound when drive thru uneven road, like absorber top mountain or something. From the bills, absorbers and lower & upper arms had been replaced a year ago..but the rubber thingy at the windscreen already deteriorate over times,is it an expensive replacement?