Hello guys.
I'm having one weird issue with my merc.
It's '89 2.0D automatic transmission.
Since november my car started developing weird 'whistle' noise. This sound start after 40km/h and it's there until 50, recently even up to 60-70. After few kilometers it goes away. There were few warm days in january when I didn't hear that noise. It looks like it occurs only when it's cold. I'm not sure where it's coming from.
In most cases when I let off throttle it will stop, sometimes it will occur when decelerating. If I press brakes ligthly sound doesn't go off so I guess it's not stuck caliper. It's not related to which gear is it in. Transmission fluid level is fine, rear differential too, propshaft bearing is few months old.
I have no idea what it could be, just hope it's not transmission.
I managed to record that sound:
What do you guys think?
I'm having one weird issue with my merc.
It's '89 2.0D automatic transmission.
Since november my car started developing weird 'whistle' noise. This sound start after 40km/h and it's there until 50, recently even up to 60-70. After few kilometers it goes away. There were few warm days in january when I didn't hear that noise. It looks like it occurs only when it's cold. I'm not sure where it's coming from.
In most cases when I let off throttle it will stop, sometimes it will occur when decelerating. If I press brakes ligthly sound doesn't go off so I guess it's not stuck caliper. It's not related to which gear is it in. Transmission fluid level is fine, rear differential too, propshaft bearing is few months old.
I have no idea what it could be, just hope it's not transmission.
I managed to record that sound:
