Quote:
Originally Posted by GoRomeo
Me too i have a minor movement on idle at times. I replaced my spark plugs and idle did improve, I still have not changed my coils but would like to know if any coils is worn out ir in fact bad. Is there a way to test these? I dont want to spend $200 dlls on new coils if issue are not the coils.  |
I also got a minor bit of shaking sometimes, often after cold start, but also notice it sometimes when idling at a traffic light. In general, the idle on my 2008 328i with 45,000 miles is not as smooth anymore as it used to be. When I bought the car with 24,000 miles CPO in 2010, you couldn't even tell if the car was running or not, it was that smooth. Now, there is the slighest bit of vibration sometimes mixing in at idle. It's not a permanent vibration, it's more like a slight vibration that comes every few seconds and then goes away again.
Is that something that could maybe be caused by the spark plugs?