'07 Prius front wheel bearing - possible change

[Konrad C]

My friend spoke to me and mention a wheel bearing like noise, which only goes quiet when turning left (I think), and is noticeable over 30 mph. The wheel bearing is the most likely suspect. 

I did some research, and Toyota has move to the hub style wheel bearing which is fixed to the carrier via 4 bolts.

http://www.japan-parts.eu/toyota/eu/2007/prius/nhw20r-aheebw/2_222220_003_358W/powertrain-chassis/4303_front-axle-hub

 http://www.ebay.co.uk/itm/FRONT-WHEEL-HUB-BEARING-FOR-TOYOTA-PRIUS-NHW20-2003-09-/122083852028?fits=Model%3APrius|Cars+Year%3A2007&hash=item1c6cc3befc:g:V80AAOSwstxVJp5Z

This type of bearing which I have seen and changed on my old Mk1 Avensis rear wheel, is easy to change so long nothing has seized. Also no need for a press. 

Found a few videos on how to change the wheel bearing. Here are 3 which explains in there own way.

My friend was concerned about the job because Kwik-Fit will not touch Toyota Prius brakes. 

From the videos plus others on changing the brakes, I see no issue unless it is something to do with the rear brakes.

My friend also wondered if it is the regen unit, but I don't think so, because it is located within the transmission. Still need to confirm the source of the noise. The tyres were replaced with new, but the noise is still present. I will be seeing my friend to hear the noise in person.