The motor on my 20 EX makes a growling sound when under load. Most noticeable when slowing on regen level 3. This is not associated with the low speed noisemaker. I drove a 20 EX Premium and it was much quieter. Anybody else notice it?
Doesn't sound right.
Should be nothing more than a "turbine" like whine under load (accelerating/regen).
Should be no different to different trim levels. Drive train is the same.
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