Tried searching, but I could not find a similar description of symptoms that my R has. So here it goes. Car is a 2005 S60R MT with 49,XXX miles owned since 35,XXX. Start it up in the morning or after work and let the engine run for 5 minutes or until the rpm's die down. Start driving to get out of my apartment parking lot or work lot (< 1/2 mile driving in both instances) and then when I come to a stop sometimes with the clutch depressed (in first or second) and sometimes in neutral the rpm's sink below 500 and the car feels like it is going to stall for a second and then the rpm's increase back to normal idle. It only does it when it's been sitting for a bit (i.e., overnight or at work all day). This symptom goes away after the car has warmed up. Ideas ?