* Brake pad break-in: New brake pads often have a slightly different friction coefficient than worn pads. This can lead to squeaking, especially during the initial break-in period. This usually resolves itself within the first few hundred miles of driving. If it persists beyond that, it's time to investigate further.
* Moisture/contamination: Water, dust, or other contaminants on the brake rotors or pads can cause squeaking. This is common if the car has been sitting for a while, or has driven in wet conditions. Sometimes a few hard stops can help clear this up.
* Brake pad material: Different brake pad compounds have different acoustic properties. Some materials are simply more prone to squeaking than others. This is less likely to be the sole cause on a *brand new* car, but it's a factor.
* Hardware issues: The brake pad clips or shims (thin metal plates behind the pads) might be worn, improperly installed, or vibrating against the caliper or rotor.
* Rotor scoring or warping: Although unlikely on a new car, slight imperfections on the brake rotor surface can cause squeaking.
* Caliper issues: A slightly sticking or binding caliper can put uneven pressure on the pads, leading to noise.
What to do:
1. Drive it: The easiest first step is to drive the car for a few hundred miles, applying the brakes firmly several times. This helps bed in the new pads.
2. Check the brake pads and rotors: If the squeaking persists, visually inspect the brake pads and rotors. Look for anything obvious like debris, scoring, or unusual wear patterns. However, this requires some mechanical knowledge and the right tools.
3. Consult your VW dealer/mechanic: If the squeaking continues after a reasonable break-in period or you're uncomfortable inspecting the brakes yourself, take your car to a qualified mechanic or your VW dealer. It's still under warranty, so they should diagnose and fix the issue at no cost to you. This is the safest and recommended option.
Don't ignore squeaking brakes. While it might be a minor issue now, it could indicate a developing problem that could compromise your braking performance and safety.
