In Reply to: 97 528i OBDII Software Reprogram posted by SML on January 29, 2000 at 14:24:31:
You can be sure you dont have the Double vanos, being that you have the 97 model. The double vanos is with the newer 193 hp engine for the 99's.
As for sending it away, if you go with Dinan, most of the Dinan distributors can do the reprogram your ECU right there at the dealer. The warranty from Dinan is supposed to walk hand in hand with your factory warranty (i.e. up to the 36k).
Take it easy,