Why does the Mercedes GLK260's brakes make noise?
3 Answers
There are many reasons for brake noise in the Mercedes GLK260, such as: excessively hard brake pads, brake pads worn down to the backing plate, excessive wear of the brake disc or brake drum, rust on the brake caliper, etc. Below are the specific reasons: 1. If it's a squealing noise, first check if the brake pads are nearly worn out (the wear indicator is making noise). If they are new pads, check if there is any foreign object caught between the brake disc and the pad. 2. If it's a dull noise, it is mostly an issue with the brake caliper, such as worn slide pins or a fallen spring plate. 3. If it's a hissing noise, then there could be multiple issues: the caliper, brake disc, or brake pads might be problematic. If the noise persists, first check for any dragging brakes, as poor caliper retraction can cause prolonged friction between the disc and pad, leading to noise under certain conditions. Also, check for any foreign objects stuck between the pad and disc. If the pads are new, inspect the brake disc for grooves, as localized friction can cause noise. If the disc is fine, consider whether the brake pads are too hard.
I've been driving for over two decades and have handled many Mercedes models. The GLK260's brake squealing is quite common. The most frequent culprit is excessively worn brake pads - when you press the brake, the metal components scraping against the rotor create that sharp noise, which over time can damage the brake disc. Additionally, surface rust on the brake discs or accumulated debris can also cause noise, especially noticeable after rainy days. Lack of lubrication in the braking system or aging components are other potential causes. I once encountered a GLK making noise during low-speed braking, which turned out to be overdue brake pad replacement. Mercedes' braking systems are precisely engineered - never ignore unusual sounds. Get it professionally diagnosed immediately, or it could compromise safety and lead to costlier repairs. A friend of mine nearly had an accident from neglecting this, and still gets chills thinking about it.
My GLK260 had been making annoying squealing noises when braking a while back. Every time I stepped on the brake, it would screech. I asked some car-savvy friends, and they said it was likely due to worn-out brake pads or uneven brake rotors. Dust and debris getting in could also cause constant noise. I drove straight to the 4S dealership and had the mechanics check it—turned out the brake pads needed replacing. After the replacement, the noise stopped immediately. Actually, the braking system on the Mercedes GLK is quite good, but issues can crop up over time. Avoiding sudden stops and hard braking in daily driving can extend its lifespan. I’ve also heard that some owners experience noise due to improper modifications or low-quality aftermarket parts, so proper maintenance is key. This experience taught me that addressing small issues early saves money and hassle.
