desertfox65
Well-Known Member
The car seems to have a jerking motion at speed of 60km/h ( 38mph) and 1500rpm when accelerating, mostly if this speed is sustained for some time. It is more apparent in the mornings. Sometimes this jerking can be violent if accelerating suddenly from a stop and go traffic situation.
BMW had a look at it and they fortunately saw it as well
, there was a BMW engineer from Germany who had a look at it and recommended that valve lift be increased, to improve the fuel mixture, which they did. However on way to work in slow traffic the jerking has re-appeared .
The SA was not too confident that changing the valve lift would sort things out, however he asked me to try. They beleive it is the engine not the the auto transmission.
If any of the forummer faced a similar issue, I would like to know if this was resolved.,Even if the similar symptom happened on another model. BMW has upgraded the s/w to the latest version and reset the transmission and throttle maps.
BMW had a look at it and they fortunately saw it as well
The SA was not too confident that changing the valve lift would sort things out, however he asked me to try. They beleive it is the engine not the the auto transmission.
If any of the forummer faced a similar issue, I would like to know if this was resolved.,Even if the similar symptom happened on another model. BMW has upgraded the s/w to the latest version and reset the transmission and throttle maps.