The function of the right suspension soft pad assembly of the car
The right suspension cushion assembly of the car is an important component of the powertrain suspension system. It works in coordination with the left suspension to jointly ensure the stability, comfort, and safety of the vehicle during driving. According to authoritative public information, its core functions can be summarized as follows:
Three main functions:
1. Supporting function:
It bears the weight of the engine or transmission, ensuring that the powertrain (engine + transmission) maintains the correct installation posture and stable position on the frame, preventing displacement due to bumps or acceleration/deceleration.
2. Limiting function:
During transient conditions such as engine start-up, shutdown, rapid acceleration, or sudden braking, it limits the excessive displacement of the powertrain to prevent it from colliding or interfering with surrounding components (such as the frame, radiator, pipes, etc.).
3. Vibration isolation function:
It absorbs and isolates the high-frequency vibrations generated by the engine operation and the excitation transmitted from the road to the vehicle body through the impact, significantly reducing interior noise and vibration, and enhancing driving comfort.
Special note (for "right" suspension):
Although the functions of the left and right suspensions are similar, in the actual vehicle layout, the "right suspension" usually needs to withstand the additional torque reaction force from the transmission side (especially in rear-wheel-drive models), so some designs will strengthen its torsional stiffness or adopt special structures (such as hydraulic damping suspensions) to optimize the vibration isolation effect.
Faults of the car's right suspension cushion assembly usually manifest as problems such as increased vehicle body vibration, idle shaking, abnormal noises during acceleration or gear shifting. According to current public information, combined with specific models and usage conditions, they can be summarized as follows:
Common fault manifestations:
During idle, the steering wheel, seat, or center console vibrates noticeably.
During rapid acceleration, deceleration, or gear shifting, there are metallic noises such as "tap-tap" or "click-click" (especially from the right side of the cabin).
During vehicle start-up or braking, there is an abnormal vibration in the engine compartment.
Long-term neglect may lead to premature wear of surrounding components such as the subframe and transmission system.
Typical fault causes:
The rubber cushion deteriorates, cracks, or hardens, losing its elastic buffering capacity.
Internal hydraulic oil leaks (applicable to hydraulic suspension), causing the damping to fail.
The bracket deforms or the installation position shifts, destroying the original factory damping design.
Batch quality issues (such as some Xingtu Zhuifeng LX models produced before July 2022 for the right suspension cushion)
Troubleshooting and handling suggestions:
Initial judgment:
In a safe environment, idle at the stop and gently step on the accelerator to listen for a continuous "tap-tap" sound from the right side of the cabin.
Observe if the engine is significantly "lifting" or shaking during acceleration.
Professional inspection:
Check the appearance of the right suspension cushion using an elevator: look for signs such as rubber cracking, exposed metal frame, or hydraulic oil leakage.
Use a bracket to lift the engine at the corresponding support point. If the shaking or abnormal noise disappears, it can be confirmed that the suspension is faulty.
Replacement key points:
It is necessary to fix the engine or transmission first to prevent damage to other components due to the sinking after disassembly.
When replacing, pay attention to aligning the original installation marks to avoid a decrease in damping effect due to misalignment.
The new part must be checked for fullness, elasticity, and no collapse, and maintain a reasonable gap with the lower stop point.
Warranty and rights protection:
If the vehicle is still within the warranty period (such as Xingtu Zhuifeng LX clearly states "normal warranty"), you can apply for a free replacement.
Some models (such as Changan CS55 PLUS) have repeated faults. If the replacement fails after multiple attempts, you can complain to the manufacturer or platform (such as Car Quality Network) to question the design defect.
Related vehicle models reference: Starway Chasing Wind LX (T1C platform): The right suspension cushion parts with part numbers 206000569AA and 206000596AA are supplied by 1KT. There were issues with these parts in batches before July 6, 2022.
Changan CS55 PLUS: The rear suspension cushion assembly has frequently failed after 2025. Some owners reported it as a design defect.
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