i think it is very common many e60 5 series owner experience gear jerk & car knock in front before stop, right?I went to a few foreman shop, inclusive of bayern auto, happy motor & ultimate auto which are bmw specialist, all of them said need to replace valve tronic, gear box, megatronic, which is costing between RM4500 to RM12000.But the problem fix after I went Auto Bavaria to Reset the ECU, Adaptation & Transmission Control Unit and only cost me RM219.Thank GOD my car now in normal condition.