khmergod

CEL went on after driving it exactly 100 miles. Checked gas cap and oil, nothing wrong there. Brought it in to dealer. They told me cylinders 2 and 3 misfired at the same time, didn't ask for the exact code. They said most likely bad gas, although I didn't fill up yet since purchase. They also told me they had to update the software which was required by MB. Not sure what it did, but the car feels more aggressive now. It might be a placebo, but do you think they updated the ecu to 375 and the TCU for more aggressive shifting?

tekfoc

I had my updated also man night and day difference with more power.
definitely see power close to the 2016.
but the 16 has different exhaust camshaft edging slightly more power.

khmergod

Mine's a 2015, but car does feel a little more responsive and less laggy from a full stop. It's loud to boot too.