E90 320d Whining noise

[Vinash]

Hi guys heard that chirpy high pitched siren like noise on my E92 325i A/T, it came once before on a very cold morning and then disappeared in the afternoon, almost a month later it comes back today.... the noise goes away as you accelerate , however it comes back on low rpm/idle stopped at the garage switched it off the noise came back when i started it and the idle jumped abit what could it be... belts, alternator or tensioner? :thumbdo::withStu:

Thanks in advanced.

 

[K1300S]

Hi guys heard that chirpy high pitched siren like noise on my E92 325i A/T, it came once before on a very cold morning and then disappeared in the afternoon, almost a month later it comes back today.... the noise goes away as you accelerate , however it comes back on low rpm/idle stopped at the garage switched it off the noise came back when i started it and the idle jumped abit what could it be... belts, alternator or tensioner? :thumbdo::withStu:

Thanks in advanced.

It is because you are not running it on Diesel.... :rollsmile:

 

[Vinash]

Hi guys heard that chirpy high pitched siren like noise on my E92 325i A/T, it came once before on a very cold morning and then disappeared in the afternoon, almost a month later it comes back today.... the noise goes away as you accelerate , however it comes back on low rpm/idle stopped at the garage switched it off the noise came back when i started it and the idle jumped abit what could it be... belts, alternator or tensioner? :thumbdo::withStu:

Thanks in advanced.

It is because you are not running it on Diesel.... :rollsmile:

Lol! im taking it to the stealerships just now..... lets see what they have to say. Just thought i could get a heads up.