Hi, I am new here and Iwas wondering if anyone can help please.. I have a 2009 bmw 730d auto on 92k miles.

Just noticed when the car is driven on a cold start, for the first 5 minutes or so when accelerating the rev gauge goes up as it should, and the auto box changes gears as normal.

However, when I take foot off the accelerator the rev gauge comes fully down as though the car is stationary in idle.

After 5 minutes driving the rev gauge remains higher as it should going through the auto gears.

When the rev gauge comes down, the car still drives fine, doesn't stall, no error messages.

Is it normal for rev gauge to come down to idle, when you take foot off accelerator, for the first 5 minutes of driving in cold.

When the car is warm the rev gauge stays where is should higher than idle.

You can see from screenshot I am nearly doing 25 mph, my foot is off accelerator, the rev gauge is on idle (under 1) when in fact when the car is warm and driving at 25mpg the rev gauge is at 1 and half. Many thanks

Morning Arfan

Welcome to the Forum

Some questions, 1. if you rev the engine what happens ? 2. how many miles has the car covered ? 3. when was the gearbox serviced ?

It could be that the box is holding a higher gear so a 25mph is showing idle speed as the box warms up it changes. A Diagnostic scan would help understand what's happening

Dave