What causes the squeaking noise from the suspension when starting a Volkswagen CC?
3 Answers
The reason for the squeaking noise from the suspension when starting a Volkswagen CC is due to damage, deformation, or detachment of the brake shoe support plate, damping spring plate, or guide plate of the disc brake. This causes an increase in the clearance between the brake shoe and the brake caliper support frame in all directions, leading to mutual impact and resulting in the noise. Introduction to the automotive suspension system: The automotive suspension system refers to the entire support system composed of springs and shock absorbers between the body and the tires. The functions of the suspension system include supporting the body and improving ride comfort. Different suspension setups provide drivers with varying driving experiences. Although seemingly simple in appearance, the suspension system integrates multiple forces and determines the stability, comfort, and safety of the vehicle, making it one of the most critical components in modern cars. Functions of the suspension system: The suspension system is the general term for all force-transmitting connection devices between the car's frame and the axle or wheels. Its role is to transmit forces and torques acting between the wheels and the frame, while also cushioning the impact from uneven road surfaces transmitted to the frame or body and dampening the resulting vibrations to ensure smooth driving.
When I drive my Volkswagen CC, the suspension always creaks and squeaks when starting off. At first, I thought it was a brake pad issue, but the noise occurs at low-speed turns and disappears at high speed. After analysis, it might be due to aging rubber bushings in the suspension system. Volkswagen cars tend to develop hardened and cracked rubber after a few years, especially the buffer components near the control arms or shock absorbers that wear out or lack lubrication. The weight transfer during acceleration causes these parts to rub. Another possibility is dust or debris stuck in the spring seat, causing scraping noises. I recommend not delaying—this noise indicates worsening parts. If the bushings fail completely, it could affect steering stability. I plan to visit the 4S store this weekend and have the technician lift the chassis for inspection. Probably just replacing a small part will fix it, costing a few hundred bucks. Peace of mind while driving is what matters most.
I've been driving my Volkswagen CC for five years, and the suspension friction noise during acceleration is quite noticeable. Experience tells me this is often caused by failed shock absorber top mounts or stabilizer bar bushings. When the rubber wears out, the gaps increase, resulting in squeaking noises as soon as the car moves. It could also be loose chassis bolts, but the Volkswagen CC's design tends to accumulate dust and lack lubrication. Try to roughly locate the noise by listening—for example, front suspension noises often indicate more component fatigue. Don't underestimate this issue; my previous car had ignored such noises, and later the bushing ruptured, costing over a thousand to repair. For safety, have a mechanic inspect the suspension during regular maintenance, and accelerate smoothly to reduce load fluctuations. Get a professional diagnosis at a specialized shop to avoid DIY mistakes that could worsen the damage.
