I had the first 2019 SW Levo in New Zealand, and picked it up in ~September 2018. I had replaced a 2017 Aluminum Levo Comp. Immediately I noticed a difference in noise. The new bike was louder with 2 distinct pitches to the noise. A deeper baseline noise with an intermittent higher pitch 'whine' that seemed to be more obvious at higher cadence. Without another 2019 to compare with, I just sucked it up as it had been explained that there was more noise transmission with the carbon frame + the Magnesium casing with the motor had less dampening. 2 months later, my wife's small S- works levo arrived, and wow, that was quiet! I'm a bigger guy (188cm, 95Kg) but I had to try her bike to see if it was my 'heft' causing the drag, but no, my size made no difference and my bike made the same noise for my lighter wife (65kg).
By that stage, the news about the motor noise recall was all around, so I got a new motor under warranty. Initially, I was happy (riding around the carpark at the LBS), but after my first ride on the trails, the same 'swarm of bees' noise was there, and I was embarrassed to ride past other clockwork bikes with any assistance on!
So, back to the LBS, and now I'm on my 3rd motor. This is just as quiet as my wife's now and I'm so happy... I can now sneak up on other riders without being self-conscious of the noise. It feels smoother too. I still have my aluminium Levo as a spare, and I think the noise is only slightly louder on the new 2019 carbon bike, but it should be insignificant. If yours makes a lot more noise, I'd suggest getting a motor swap...
They performed the foam insert recall / mod for the back of my motor casing, but the cover has 3 holes still. not sure what the 4-hole cover was supposed to do....
I am now riding with my 2nd motor. (Levo 2019 Comp) I can only hear the motor when riding uphill, low gearing and high cadence. Also in eco at 10/15% you can hear the motor clearly but it’s also not really irritating. However ifif it would be totally quiet, like the 2017/2018 motor, it would have been great.
Do you recognize the above? If so, do you recognize it with your 2nd or 3rd motor?