Thank you for you response! Ok i've got my own bt cable so I ran some tests and got this:
29CE:
29CE misfirings, cylinder 2
Error will cause a warning light
Error is not currently present
Event 1
Odometer 3264km 2028miles
engine temperature 99.75 degrees celsius
load value for misfiring detection 98.05%
Engine speed 3328rpm
Lambda integrator group 1 33.59%
So it wasn't as high as 5000rpm, oops
Went past bmw today and they told me it sounds like bad petrol, and come to think about it, it could be, that tank was the first that was not filled up at one of my regular filling stations... Also I was on reserve tank , don't know if that makes a difference..? The 135i is the only car I have ever had problems with regarding fuel (if that is the problem). I have done about 100km since then and it all seems fine.. I hope it all holds together!
I'm running stock at the moment and have a jb3 ready and waiting to be installed but these issues have been postponing that! Anyone have experience with it here in jhb?
Oh and my fuel consumption is terrible, between 14 and 16 for city driving and drops to about 12.5 on the highway, sometimes I only get 260-280km on a tank which is quite ridiculous, is this normal? and no its not my right foot as I have been monitoring the consumption lately so have been easy on the right pedal....