The function of the rear car bracket mounting bracket assembly
The phrase "installation components of the rear support bracket" can refer to various components in different contexts. According to public information and based on common automotive structures, its function mainly depends on the specific type of "rear support" being referred to. Here are several possible explanations and their corresponding functions:
If it refers to "engine rear support" (engine support frame):
Fix the position of the engine and prevent it from moving due to vibrations or acceleration/deceleration during driving.
Absorb and buffer the vibrations generated by the engine operation, improving driving comfort and reducing the impact on the vehicle structure.
If damaged, it may cause engine abnormal noise, increased shaking, and even looseness or damage to other components in the engine compartment.
If it refers to "rear bumper support":
Support and fix the rear bumper, ensuring it fits tightly to the vehicle body and avoiding abnormal sounds or loosening during driving.
During low-speed collisions or rear-end scrapes, it absorbs part of the impact force, protecting key components such as tail lights, radars, and fuel tanks.
It acts as a "hidden skeleton", enhancing the overall rigidity and safety of the vehicle rear structure.
If it refers to "rear wheel support" (rear axle/saddle)
Support the rear wheel assembly and is an important part of the suspension system.
Integrated rear axle: Focuses on space utilization and ride comfort, suitable for family cars.
Split rear axle: Has strong bearing capacity and fast response, often used in trucks or SUVs.
If it refers to "rear seat support"
Support and fix the rear seats, ensuring they remain stable during driving.
Some designs also support functions such as backrest reclining, angle adjustment, or Easy Entry, enhancing practicality.
During collisions, it can absorb impact force, ensuring passenger safety, and is a key safety component.
If it refers to "rear shock absorber aluminum seat support" (suspension system component)
Connect the shock absorber to the vehicle body, undertaking the task of buffering vibrations and stabilizing the vehicle posture.
Aging or damage can cause chassis abnormal sounds (such as "clicking"), increased hardness when crossing uneven terrain, and decreased control accuracy.
If it refers to "transmission shaft support" (applicable to front-wheel drive or four-wheel drive vehicles)
Support the transmission shaft and maintain its dynamic balance, ensuring smooth power transmission.
If it fails, it may cause steering wheel shaking, chassis abnormal sounds, and in severe cases, even lead to the detachment of the transmission shaft.
The installation components of the rear support bracket may involve multiple parts, including trunk support, rear bumper support, engine/transmission support, rear axle support, etc. Based on the current time (April 2026) and the latest public information, the following are common fault types, judgment methods, and handling suggestions:
Common fault manifestations:
Abnormal noise and vibration: A "clicking" sound or continuous low-frequency vibration is heard during driving, especially on acceleration, turning, or bumpy roads.
Abnormal vehicle posture: Rear wheel alignment deviation, causing vehicle drift, uneven tire wear, or rearward sinking (severe fracture).
Reduced handling performance: Obvious vehicle shaking during sudden acceleration or braking, slow steering response.
Loose or deformed connections: Poor closure of the trunk cover, loose rear bumper, damaged latch or screw hole positions.
Oil leakage signs: If there is gear oil leakage near the support, it may be due to damage to the rear axle seal after the support cracks.
Fault cause analysis:
Rust and cracking of rubber bushings: Long-term use or high-temperature, bumpy road conditions accelerate rubber aging.
Fatigue fracture of metal components: Especially after accidents or impacts, the support body may fracture.
Improper installation or loose screws: Failure to tighten according to standard torque after repair, resulting in connection failure.
Material deterioration: Some aftermarket supports use high-tensile engineering plastics but lack metal reinforcement, prone to fracture. Check if the screws are loose and if the snap fasteners are broken.
Try to manually shake the bracket to determine if it is loose.
Minor Damage
If only the connection is loose, you can re-tighten or replace the screws .
If the bracket is bent but not broken, you can try to correct it with tools (be cautious).
Serious Damage
Must be replaced: If there is fracture, severe deformation or the rubber completely fails, it should be replaced immediately .
It is recommended to use original factory or compatible aftermarket parts, as emphasized in the case of Geely Vision X6, "Original design, snap fasteners and screw holes are perfectly fitted".
Self-replacement vs Professional Repair
Simple Brackets (such as trunk and bumper brackets): Those with some manual skills can replace them themselves, usually requiring basic tools such as screwdrivers and wrenches .
Complex Brackets (such as engine, transmission, and rear axle brackets): This involves lifting the vehicle and disassembling the assembly, it is recommended to be operated by a professional repair shop to ensure that the bolt tightening torque meets the standard (usually 80–120 N·m) .
Preventive Maintenance
Check the aging condition of the rubber parts of the brackets every 20,000 kilometers, and test the elasticity by lightly pressing with a pry bar .
For vehicles with a mileage of over 5 years or those frequently traveling on bumpy roads, it is recommended to shorten the inspection cycle .
If you want to know more, keep reading the other articles on this site!
Please call us if you need such products.
Zhuo Meng Shanghai Auto Co., Ltd. is committed to selling MG&MAXUS auto parts welcome to buy.
