Thank you Paul. This was very helpful.

I am thinking of buying a 2007 S80 with 134,000 miles. Went to test drive it today and every time I started it, the button had to be pushed twice. The first time the engine would turn over and somewhat start and then die. The second time, hold the button in slightly longer and it would start. I am ...

While doing some routine maintenance on my 1997 850 GLT (about 200K miles), I noticed that it sounded like there were marbles or rocks rolling around in or near the oil pan. Could that be a sign of eminent oil pump failure? Is there anything I can do to troubleshoot the oil pump?

I encountered the same difficulty in bolting the SAS valve. The nut closest to the firewall is almost impossible to tighten with a wrench. However, if start with the nut closest to the firewall (save the outer for last), you can tighten it by rotating the SAS valve and holding the nut in place with ...