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133 Posts
In over 45 years of vehicle ownership I have flushed my brake systems every one to two years; as a result, I've never had to replace a master or wheel cylinder on any vehicle I bought new---only made such replacements on a couple of vehicles I bought used. I use a one-man pressure bleeder with an air bladder to keep air from being compressed into the fluid. My brakes have always performed well in severe/emergency situations, and I'm glad I've done the flushing on a regular basis. As I bought another vehicle, I bought another adaptor if necessary so that the one-man bleeder can be attached to that particular vehicle's master cylinder. One needs to take measures to exclude air from the fluid when refilling the bleeder, as well.
If you pay to have the system flushed, make sure to at least check the master cylinder reservoir to sort of see that the new, clearer fluid is present; my wife's
(she was at that time my new girlfriend) vehicle was supposedly flushed by the Acura (!) dealer---when I checked it, the master cylinder reservoir appeared to still have brownish fluid---I complained to the service manager, and the mechanic said he "forgot"....
If you pay to have the system flushed, make sure to at least check the master cylinder reservoir to sort of see that the new, clearer fluid is present; my wife's
(she was at that time my new girlfriend) vehicle was supposedly flushed by the Acura (!) dealer---when I checked it, the master cylinder reservoir appeared to still have brownish fluid---I complained to the service manager, and the mechanic said he "forgot"....