jerking

Model: 318i YOM: 2017 Trim: Luxury The gearbox is very jerky/shudders at low speeds in Comfort mode, particularly around 80km/h at 1,500 rpm. Very troubling feeling from such a premium product! Problem goes away if gearbox is put into Sports gearbox (S) mode, or the car is put into Sport...

Hello All, while travelling to genting yesterday, my E39 525i unable to downshift to lower gear while going uphill. even manually downshift it is not changing to lower gear. after that the engine start to jerk and very small amount of smoke came out under the hood. OBD straight away beep and...