Does the Lavida's buffer rubber sleeve need to be replaced if it's broken?
3 Answers
Lavida's buffer rubber sleeve needs to be replaced if it's broken. Specifications for automotive buffer rubber: The buffer rubber appears as an open-ring shape with a groove on both the top and bottom (to accommodate the coil spring), and two, three, or more holes on the side. Based on the standard specifications for spring spacing, buffer rubbers are divided into seven standard models: A+A, A, B, B+, C, D, E, and F. Theoretically, these eight models can cover the needs of the vast majority of coil spring suspension vehicles worldwide. Reducing the lifespan of the suspension system: The product itself is quite hard, or becomes hard during use. Simply put, hard or even cracked so-called 'buffer rubber' is indeed harmful rather than beneficial to the suspension system.
My Lavida had the same issue last year, making terrible creaking noises over speed bumps. The mechanic said if the buffer bushings are worn out and not replaced, the entire suspension system would suffer. Metal parts hitting directly against each other could cause minor issues like steering wheel vibration or major ones like misalignment. After replacing them, my car became quiet immediately, and it no longer makes loud clunking noises over bumps. Take my advice: spend a couple hundred yuan on genuine bushings to avoid costly repairs for control arm ball joints later. Oh, and when replacing them, remind the mechanic to check if the lower control arm is deformed—damage here can affect wheel alignment data.
As a mechanical engineering professional, I must say: This thing is the buffer valve of the suspension system! When the buffer bushings of the Lavida are broken, it means the suspension is running 'naked.' When the wheels move up and down, the metal connections without rubber damping will cause displacement deviation. The most direct consequence is uneven tire wear—a tire can be worn bald in just three months. If you encounter extreme conditions while cornering, the geometric deformation of the suspension will lead to a sudden loss of grip. My colleague's Passat once sideswiped a guardrail because of this, and the repair cost was enough to replace twenty sets of bushings. If you really want to save money, at least inspect it first—jack up the car and shake the tire. If there's play, it needs immediate attention.
