2001 V70T Auto I've noticed recently that my car's temperature gauge doesn't climb quickly up to "straight up" and stay there. This winter (London, fairly mild: 2 to 10 deg C (not freezing)) it seems to be quite sluggish to get up there. Is that normal? Or should I replace the thermostat? Also, and maybe this is related: Once up to temp, when sat at traffic lights the idle sometimes drops to the point where the headlights and dashboard lights dim a bit, then the idel kicks back up to 800-900 rpm and stays there. Its like a tired driver fighting to stay awake - it almost 'nodding off', but catches itself just in time, and then stays alert for a little while longer ('til the next stop light). Does any of this sound familiar? I had the throttle body module (or was it gearbox?) reprogrammed a while ago, and that cured all its previous idling woes for about a year. TIA Dz