I have a 6 series (automatic), which seems to have some sort off engine fault. So far BMW cannot find what is causing the problem.
When i go to pull away at a junction, after covering the brake, i go to accelerate. The engine revs but the car does not move, and then all of a sudden the car is jaulted forward with a loud bang in the cabin (this happens within seconds). The first time it happened i thought someone had driven into the back off me as it actually throws you back into the seat. Im starting to think its the gears not engaging properly, but BMW cant find any problems.
Does anyone else have this problem?