1999 BMW 328i Q&A

1999 BMW 328i Question: erractic rev. PLEASE HELP URGENTLY

hi, i have a 328i e46. while driving the rev falls and then picks up and falls again esp when i leave the accelerator and then press it again. At the sam time there is a noise from the back of the car. no one can tell me what the problem is not even the agents. Please help -
Answer 1
This needs to be looked at by a competent shop, one who will diagnose the problem. It's impossible to do that without seeing the vehicle. Can you take it somewhere else? Is there a BMW Dealership near you? -
Answer 2
you might want to check the idle control valve -