For those of you with 2007 Cooper S automatics (and I suppose, manual trans as well), have you noted a surging of the engine at stop (in gear) say, at stop lights, etc. Mine seems to surge from 600-800rpm. Is anyone else feeling this?

 

mine has a rough idle from time to time yeah. sometimes when i crank it, it will be rev'ed higher like in b/t 1 and 2k instead of right below 1k like always. not quite sure... trying to get an appointment to get it fixed, a squeak from the engine, sunroof seal and more :( anyone else have this or any way to reduce or fix it?

 

yup i have that problem. and it only occurs when my engine is warmed up, after driving about 30 minutes. doesn't happen every time i drive, but often enough. i've taken it to the dealer, and they haven't been able to find anything wrong with them car.

 

Funny, I noticed this for the first time on Sunday, after a long drive and right after I had filled my tank. NO CELs, but a definite rough idle.

It almost felt like the engine was hunting and the trans was hunting for the correct gear between 2 and 3 as I slowed down to crawl and not a full stop.

It will be interesting to see if my dealer can find anything after I take my next out of state trip with the MINI.

 

I thought maybe this was some quirk of the transmission in automatic sport mode? Maybe since the transmission controller doesn't know you're attempting to come a complete stop, it's trying to keep the revs up by dropping to 1st?

Is there a way to observe what gear you're in when in automatic mode?

 

Standard tranny here. I get a 500-1000 rpm surging if I use the clutch to hold position when stopped on a hill. Easing the clutch out just enough to keep from rolling back sends the MINI into this little engine dance. I know it is a fast idle cam engaging-disengaging as needed. Not really worried about it.

 

I get a bit of a rough idle when I first start it up in the morning. It's 7 miles to where I work, and by the time I get there, it's pretty well smoothed out.

 

I'm not sure we're all talking about the same thing. Thread title says 'rough idle', but OP's description does not sound like it's about idling. 4xAAA's description sounds like hill-assist in action.