Originally Posted By: Gary Allan
Quote:
Never have done the brake fluid but the car seems to be stopping ok. What does changing the brake fluid help with exactly?
sorta...
Not flushing your brake fluid is fine for most consumers. They tend to drive their rides until they're requiring brake service in the form of shot rotors and metal to metal (or when the annual safety inspection states so). There the mechanic routinely bleeds the brakes and adds new fluid. This "every couple of year" bleeding has been what has made the old school mechanic look at "brake fluid flushing??" with a deer in the headlight expression. He's never done it ..and never suffered for lack of it.
Now move this to the DYI'r that preemptively changes pads before the rotors are ever scored and never disturbs the hydraulic system. He can go a decade with zero fluid loss.
Add ABS and whatnot, then you have a decent case for fluid flushing.
I've also seen Vette's that sat in garages have corroded multipiston calipers that needed to be rebuilt due to moisture in the fluid. Routine flushing would have made that very expensive refit unnecessary.
Old school BMW maintainence recommends a brake fluid flush every 2 years. Apparentely it works as neither I or previous owner, knock on wood, have never has a brake fluid related failure in 183,000 miles or 15 years on this car. My car has 4 wheel single caliper disks, ABS and traction control