View Single Post
      05-02-2018, 10:38 AM   #2
thestimp
Lieutenant Colonel
United_States
990
Rep
1,717
Posts

Drives: 22 X3MC MBB - C-17 Globemaster
Join Date: Jun 2014
Location: Pittsburgh, PA

iTrader: (1)

Garage List
2022 X3mC  [10.00]
2016 BMW M3  [0.00]
Quote:
Originally Posted by 15xdrive35i View Post
Hi everyone,

I have a 2015 X1 xdrive35i, only modification is a dinan tune. For the past several weeks I have noticed a whistling noise when cruising @ about 70mph, significantly louder when the foot is on the accelerator. When I let my foot off the accelerator, the noise improves by a substantial amount. I took it to my local dealer who could find anything wrong. Looking for any thoughts on what it could be? I don't hear the sound at lower speeds.

Any chance you can describe the whistle or get a passenger to figure out where its coming from? A little while back in the forums, a sideview mirror and a bad windsheild mold caused stuff like this. Check all your trimmings and under car mudguards, whistles are damn near impossible to diagnose.
Appreciate 0