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Joe F
04-10-2013, 06:29 PM
I have 2012 335i Coupe. It has 13k miles on it. The car is mostly driven on freeways at a steady 72-75mph. I noticed that when I start the car after it has been sitting for an hour or so, (not totally cold) On start up the idle hunts around between 800 and about 1500-1700. On a totally cold start it does not act like that, it just smoothly idles at around 900.

So it's time for the first service and I ask the service writer about this issue and they say they will check on it for me.

Time to pick up the car and I am told that there were no "codes thrown" and since that's the case, there is not a problem.

Does anyone else have this issue? Am I just being too picky?

I also asked about the "hair-trigger" throttle response from a stop making it hard to modulate the throttle and not get a neck snapping start. I was told that is just the nature of this engine and I needed to get used to it.

I just wondered what others thought?


Thanks in advance for your insightful comments. :)

JF

sdemetris
04-10-2013, 10:15 PM
hmmm ive never heard that about any of bmw's recent engines when it comes to throttle response. Ive only heard of and experienced a little bit of a sluggish throttle response.. I'm not sure what it would be though.. maybe something to do with valvetronic not moving smoothly since that is what is controlling it for you