What causes the abnormal noise when driving a Mercedes GLC on uneven roads?
2 Answers
Mercedes GLC produces abnormal noise when driving on uneven roads due to foreign objects stuck in the tires, faults in the steering wheel energy absorption box, or loose components at the radiator connection. Below are detailed explanations of these causes: Foreign objects stuck in the tires: Owners should first check whether foreign objects are stuck in the tire-related areas or if some components are loose or detached, causing friction with other parts. Steering wheel energy absorption box fault: Abnormal noise from the steering wheel is a common issue reported by many Mercedes GLC owners. Due to the complex structure of the vehicle's steering wheel, which involves many other components, the main cause is often the energy absorption box. Owners can visit a 4S shop to replace the energy absorption box to see if the noise persists. Loose components at the radiator connection: Owners should focus on checking whether the components at the radiator connection are loose, causing the noise. If any parts are loose, owners can choose to tighten them themselves based on their situation or seek professional help from an auto repair shop to secure the loose parts.
As a Mercedes-Benz GLC owner with years of experience driving similar models, rattling noises on bumpy roads are quite common. It's usually an issue with the suspension system, such as aging shock absorbers, worn or loose rubber bushings on control arms, which create friction and noise when going over bumps. Another possible cause is loose chassis components, like sway bar links or ball joint covers that shift under stress and produce sounds. Sometimes the braking system is also to blame—loose caliper bolts or worn wheel hub bearings can make the noise more noticeable during turns. In car owner groups, I've also heard about unstable interior items, like a loose spare tire in the trunk or objects rattling in door storage compartments. I recommend first checking the suspension and chassis, and if necessary, visiting a dealership for a comprehensive inspection. Don’t ignore minor rattles, as they could lead to more severe wear and compromise driving safety.
