By using a hydraulic Infiniti brake caliper at all four corners of your J30 or M35, the engineers at Infiniti ensured that you had the best possible braking available to you from the factory. Some of these cars are more than a decade old now, though, and the Infiniti brake caliper is one of those items with a finite lifespan. After a hundred thousand miles or so of stopping your car on a dime, the Infiniti brake caliper frequently begins to leak around the rubber seals and boots that are designed to keep the brake fluid inside. This can happen slowly: You may notice a slight loss of braking ability as an Infiniti brake caliper begins to bleed its hydraulic pressure out through a leak. More frequently, you'll notice that your brake fluid is disappearing in the master cylinder reservoir. Instead of returning to the reservoir, it's leaking from a bad Infiniti brake caliper or from a hose connection that needs to be tightened. While the potential loss of braking power is a big concern, equally concerning is that a leaking Infiniti brake caliper can drip fluid onto your spinning brake rotors. The rotors fling that fluid across your car's paint, and brake fluid eats right through paint. It makes you want to go check your Infiniti brake caliper out right now, doesn't it? When you're washing your car or rotating your tires, give each Infiniti brake caliper a quick look. If you see fluid staining or moisture on the Infiniti brake caliper, order a new one from us right away. Not only will you remain safer with a new Infiniti brake caliper, but your car's expensive paint job will remain where it belongs: On your car.