Report Why did My BMW start reving up & down after engine got warm? in BMW 5 Series Forum in UAE Posted August 8, 2012 This problem with my 1999 523 has recently started. when the engine is warm the RPM started going high and low sometimes very high sometimes very low this dose not happen when the engine is cold that is on cold start. what is this
Why did My BMW start reving up & down after engine got warm?
in BMW 5 Series Forum in UAE
Posted
This problem with my 1999 523 has recently started. when the engine is warm the RPM started going high and low sometimes very high sometimes very low this dose not happen when the engine is cold that is on cold start.
what is this