My 2010 MCS is the first brand new car that I've ever owned and sitting at a idle it shakes like it's an old car... Just want to know if everyone's car feels like this. My last car was a Toyota pickup and it rumbled almost the exact same way, but that was because it had issues.

 

Here in NorCal mine will run a tad rough on a cold start, then smooth out when warmed up. No shaking . 08 MCS 43K

 

I have a new 2010 Cooper (got it in May) and felt vibrations when idle, and also when going 15-20mph. I brought it to the dealership 3 weeks into having the car...they felt it too, but their "computers" checked out all ok. They suggested "breaking in" the car to 1000-1500 miles. I'm at 1200 miles and still feel some vibration, although it has lessened.

I previously owned a 2007 Cooper and do not recall this much vibration when new.

 

Sounds like the HPFP may be dying.. and yes, they're known to crap out "immediately" on a new car. Search for HPFP (high-pressure fuel pump) and read about how troublesome the damn things have been. Good luck.

 

I got my 2010 in March and it idles smoothly, however a few hundred miles earlier I started hearing this loud annoying "squeaking" noise which some NAM users suggested was probably the HPFP. But the squeak went away. I listen closely each time I start up the car to see if it comes back so I can take it to the dealer, but so far so good. Good luck!

 

I have a rough idle occasionally on a cold start but thats about it.

 

My car will idle rough for a couple of minutes when I start it... but I have not found this strange after owning TDI VW's for most of my driving life...

My car makes virtually no noise after it has warmed up. I had a friend of a friend in my car once who thought my car was a hybrid because the engine could not be heard when I was stopped at lights.

Just monitor the sound, make a mental note of when it is happening (ie. is it always when you first start it in the morning? does it happen mid-day after you have driven it too?)

It should lessen as you drive it more. I disagree with your dealer though. It takes MUCH MUCH longer than 1,000 miles to break in an engine.

 

Thanks for the replies everybody... I have 3000 miles on it now and it still does it. hot/cold doesn't matter, it does the same thing. It may not shake that much, but I think I should bring it to the dealer for them to check it out. Just doesn't seem right to me.

 

Like everyone else mine is rough at idle when cold and is super smooth after warm. Was rougher and hunted a tiny bit before seafoaming it.