What Causes Severe Brake Noise in the New Jetta?

[MatthewLynn]

Here are the reasons for brake noise in the New Jetta: 1. It may be that the mechanic installed the brake pads incorrectly. Upon removal, you can see that only part of the brake pad surface shows signs of friction. In this case, you need to go to a 4S shop to have them removed and reinstalled. 2. If the noise suddenly appears after driving for a while, it is mostly due to hard objects on the road, such as gravel or metal debris, getting caught in the brake pads. In such cases, you can go to a 4S shop for cleaning. 3. Due to manufacturer issues, friction block dimensions may vary for the same type of brake pads, especially in width. Some manufacturers may have deviations of up to three millimeters. This can make the brake disc surface appear smooth, but if larger brake pads are installed on a brake disc that was previously used with smaller pads, noise can occur. In such cases, the brake disc may need resurfacing. Alternatively, you can drive for a while without resurfacing, and the noise will stop once the friction marks align.

[LeHope]

I've handled quite a few cases of brake noise in the new Jetta, mainly caused by severely worn brake pads or material issues. Sometimes, the factory-installed brake pads on new cars are too hard, and they haven't adapted well during the break-in period, resulting in squeaky noises while driving. Another common cause is uneven or rusted brake disc surfaces, especially noticeable after rain, which creates noise during friction. Dust accumulation in the brake system also adds to the problem, as more dust over time can lead to noise. I recommend checking if the brake pad thickness is normal using a ruler; if they're too thin, they should be replaced, and you should also inspect the brake discs for any scratches. Safety should never be taken lightly—brake noise could indicate reduced braking performance, which is even more dangerous at high speeds. It's best to have it checked by a professional shop as soon as possible. Regular cleaning of brake components can also help prevent this issue.

[AlanaAnn]

When I drove the new Jetta before, I encountered brake noise. At first, I thought it was a minor issue, but later discovered it was caused by metal particles in the brake pads, which made a screeching sound when rubbing against the brake disc, especially noticeable in cold weather. Sometimes, the brake discs of new cars aren't smooth enough, or they aren't installed properly, causing more noise and vibration during hard braking. Dust clogged in the brake caliper gaps is also a common cause. Once, after cleaning with compressed air, the noise immediately stopped. I suggest you try pressing the brakes hard a few times to heat up the system and see if it helps reduce the noise. If not, go to a repair shop for inspection as soon as possible to avoid damaging other components. Driving safety is more important than anything else, so it's better to address this issue early for peace of mind.

[GriffinAnn]

Brake noise may be caused by excessive wear of brake pads or deformation of brake discs. The factory brake pads of the new Jetta are sometimes made of harder materials, and if not properly broken in during the initial period, they can easily produce noise. Excessive dust accumulation or foreign objects stuck in the brakes can also increase noise. The inspection is simple: listen to the location of the sound to determine whether it's a front or rear wheel issue; noise at low speeds is mostly due to aging brake pads. It is recommended not to ignore this and to repair it early to prevent brake failure.