The brake calipers are among the most important parts in your Mercedes-Benz vehicle's disc brake system. In simple terms, the calipers clamp onto your brake rotors. That creates friction -- or resistance -- that slows the rotation of your wheels. How brake calipers do that is more complex, though.

How Do Brake Calipers Work?

When you press the sole of your foot against the brake pedal, the master brake cylinder responds by sending hydraulic brake fluid to pistons in the calipers. The building pressure forces the calipers to close brake pads onto the rotors. The pads protect against damage from metal-on-metal contact, and also help to disperse some of the heat generated by the act of braking.

How Do You Spot Failing Brake Calipers?

Even the best calipers can go bad, especially if the heat isn't properly removed. That can lead to seals decaying, which allows contaminants to collect in the calipers. Signs of trouble include:

• You hear grinding or squealing noises when you brake
• Your vehicle pulls to one side when you brake
• The brakes feel spongy
• You feel as though you have to "pump" the brakes to get them to work right
• The dashboard warning light comes on

Which Brake Calipers Are Your Best Choice?

If you do need to replace your factory brake calipers, insist on buying genuine Mercedes-Benz. After all, it only makes sense that your manufacturer makes the right calipers for your model, since they're the only ones that are guaranteed compatible. Find them, along with hardware such as bolts, brackets, pins, and supports that you may need, right here in our online auto parts catalog. Buy now and we'll get your order shipped right out!