How to Deal with the Squeaking Noise from the Shock Absorber of Mercedes-Benz GLC?

[McBarrett]

The solutions for the squeaking noise from the shock absorber of Mercedes-Benz GLC are: 1. If the shock absorber itself is leaking oil or bent, simply replace the shock absorber; 2. If the shock absorber pressure bearing is aged or abnormally worn, replace or lubricate it directly; 3. If the shock absorber spring is deformed, replace the spring directly; 4. If the wheel bearing is making noise, replace the bearing directly. Taking the Mercedes-Benz GLC 2021 GLC 260 L 4MATIC Dynamic model as an example, its body dimensions are: length 4764mm, width 1898mm, height 1642mm, wheelbase 2973mm, and fuel tank capacity 66l.

[GageMarie]

I've been driving a Mercedes for over a decade, and squeaky shocks in the GLC are all too common. The noise mostly comes from aging rubber bushings in the suspension or insufficient lubrication, especially when going over potholes—it can be really annoying. First, do a quick check yourself: park on level ground, engage the handbrake, squat next to the wheel, and shake the car body to pinpoint the noise. If it’s coming from chassis connection points, try spraying some rubber lubricant (but don’t overdo it to avoid oil contamination). If the squeak persists, it’s likely cracked bushings or internal wear in the shock absorbers that need replacement. Mercedes’ suspension systems are quite precise—ignoring this small issue long-term can lead to unstable handling and increased skidding in wet conditions. Last time, I handled it myself to save some money, but amateur work might damage other components. I recommend cleaning undercarriage dust weekly to maintain lubrication. Ultimately, take it to a trusted repair shop for a thorough inspection—safe driving is what matters most.

[DelJackson]

The squeaking noise from the suspension is usually caused by friction due to worn bushings or rubber mounts. The Mercedes GLC uses a multi-link suspension structure, and the rubber components can become stiff and squeak as they age. First, I locate the issue: listen for sounds when driving over speed bumps at low speed to determine if they originate from the front or rear axle—it could be the shock absorber top mount or spring seat. Lubrication can provide temporary relief; I recommend using a silicone-based spray on the connection points. If this doesn’t work, parts replacement is likely necessary. Genuine Mercedes bushings are expensive but durable, while aftermarket options like Lemförder offer a more affordable alternative. You can try tightening the bolts yourself, but make sure to use safety stands to support the chassis and avoid accidents. Suspension issues can affect wheel alignment and prematurely wear out the braking system, which isn’t worth the risk. It’s best to have a professional workshop diagnose potential oil seal leaks. For prevention, inspect suspension bushings every six months to check for cracks.

[AshlynRose]

The squeaking noise from the Mercedes-Benz GLC's shock absorbers must be addressed immediately to prevent safety hazards. Squeaking often indicates worn suspension bushings or lack of lubrication. Driving on bumpy roads can cause unstable body sway, posing a high risk of loss of control at high speeds. When parked, manually shake the vehicle to locate the noise source. If near the springs, lubricate first. Avoid driving a noisy car for too long; take it directly to a repair shop for a comprehensive inspection, emphasizing testing the shock absorbers' rebound force. During repairs, replace aged rubber components to ensure reliability. Delaying repairs is minor, but causing an accident leads to irreversible regret. Maintain regularly.