This is a follow up question to my never ending situation regarding the stock brakes on the 2018 Subaru BRZ SportTech RS (they're Brembo's from the factory):
- How long should disc brakes take to slow the car when wet?
- Can a brake booster vacuum hose malfunction in a situation where the car is wet but work fine when the car is dry?
Essentially, my brakes don't decelerate as well on the highway when conditions are wet versus when they're dry. The two questions above provide a proper description.
Just today I talked to the dealership, and they claim that this might be an issue with all the Brembo's that come on this model. Basically, the service representative explained the problem by saying that with these Brembo's there's always a slight "hairline" amount of contact to keep them heated and better preforming. This may be causing the rotors to become "glazed" and faulty in wet conditions.
Essentially, this means that every new BRZ with this set of brakes would have the same issue. It could even imply that every performance set of brakes that apply that same about of hairline contact could fail in specific situations as well.
The dealership solution was to scuff the rotors and then just re-scuff them every time the problem returns.
Are vehicles with performance brakes unable to be used on the highway in the rain, due to the poor design of the brakes?
To me it seems highly unlikely that a car manufacturer would include Brembo's on a vehicle if they're not usable on road trips.