Jabsig1

I have a CPO 2015 LS460 AWD with 55k miles. Lately when driving at lower speeds, above 5 mph but less than 35 mph, I’m hearing a low frequency droaning noise. It’s hard to describe but essentially it sounds like the car is not as fluid/smooth as it should be. I seem to notice it most in the 20+/- mph range.

I changed the rear Diff fluid and plan to do the front Diff and transmission soon and have had the car service according to the manual.

I know this isn’t a lot of info but it’s something that I have been thinking about and thought I would see if any others have had anything similar or thoughts on what it could be. I am still under the certified/extended warranty but have not gone that route yet.

thanks in advance for any thoughts.

Anfanger

I would start with basics like tire pressure, tire condition, alignment, brakes check.

SW17LS

Its a groaning noise that isnt linked to the suspension? Wheel bearing maybe?

sdls

Model and age and condition of tires?

Jabsig1

Tires are Michelin Polit HX Mxm4 with almost 20k miles on them. Balanced and rotated every 5k.

Anfanger

Is there any change to the noise when you turn?