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Rusty discs

6K views 10 replies 9 participants last post by  ColinB 
#1 ·
I have a two year old CHR and have just had the second service. The garage have advised me to replace the rear discs due to rust. On questioning why this has happened, the garage explained that the hybrid braking system does not use the brake pads as much due to the engine braking system and that I should be braking harder to get the brake pads having more contact with the discs and this in turn stopping the build up of rust.This also happened on my Prius and Toyota replaced the discs under warranty. I am going to keep the old disc and take it up with Toyota. Just wondering if anyone else has had this issue. :?:
 
#4 ·
Jools74 said:
If that is the case with the braking system, it seems badly designed and not fit for purpose. Seems unreasonable to go around braking hard just to clean the disc surface
At the same time you have to keep in mind break pads last much more longer than to a normal car.
It's a trade off. Ideally disks should be more resistant to rust than normal. It's not the case here, they are very ordinary.
 
#10 ·
If it's under warranty after 2 years, I would argue discs should last at least 4 years or 40k miles.
 
#11 ·
I had a Prius as a company car, along with several of my colleagues. These suffered from rusting discs and I remember there being discussions between the lease company and Toyota on whose responsibility the replacements were, I believe that Toyota did accept responsibility in the end.
I do make a point of occasionally using heavy braking on my CHR to try to prevent this happening.
 
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