I must say the following, having 2 V's over the years I never utilized a web site to query any problems. Man's relationship with his transportation is either a necessity (with minimal service) or an affair where time/$ is secondary. Well teach an old dog a new trick, this site reminds me of my youth and my experiences in SCCA, only then we spent hour's over beers trading secrets, now it's coco and a keyboard.

To the meat,
On 3/15/07, in a response to a question about oil type, "Klausch" noted that he goes to AutoZone and they do a readout of the computer for codes? Is this while they do a oil change or is this a separate service?

Second part, since the real deal info seems to be a national secrete held in the Volvo vaults somewhere in Sweden, which is the best manual for the high tech that makes the newer models run.