The function of a car trunk lid
The trunk lid (also known as the tail lid) of a car is an important component at the rear of the vehicle. Its main functions include:
Isolation space
Separate the rear cabin from the trunk to achieve sound insulation, heat insulation and odor isolation, enhancing the comfort inside the vehicle.
Storage function
It provides an openable storage space for convenient storage of items. Some models can be easily opened and closed through an electric tailgate.
Safety protection
Equipped with anti-theft locking mechanisms, some models also integrate intelligent sensing functions to ensure the safety of items.
Extended functions
In the field of audio modification, it can assist in improving sound quality. When storing large items, the cover plate can be retracted to expand the space.
The trunk lid (also known as the tail lid) of a car is an important component at the rear of the vehicle. Its main functions include:
Isolation space
Separate the rear cabin from the trunk to achieve sound insulation, heat insulation and odor isolation, enhancing the comfort inside the vehicle.
Storage function
It provides an openable storage space for convenient storage of items. Some models can be easily opened and closed through an electric tailgate.
Safety protection
Equipped with anti-theft locking mechanisms, some models also integrate intelligent sensing functions to ensure the safety of items.
Extended functions
In the field of audio modification, it can assist in improving sound quality. When storing large items, the cover plate can be retracted to expand the space.
The malfunction of a car trunk lid may be caused by various reasons. The following are common causes and solutions:
Hydraulic rod failure
A malfunction of the hydraulic rod can cause the trunk to fail to spring up or close normally, which is common in vehicles that have been in use for more than three years. The fault is manifested as:
The trunk lid cannot pop up automatically and needs to be lifted manually with effort
Uneven internal resistance or oil leakage of the hydraulic rod
Mechanical structural wear or aging of seals may occur after long-term use
Youdaoplaceholder0 Emergency response : You can try applying lubricating oil to relieve the abnormal noise, but professional maintenance is required to replace the damaged parts
Problems with the lock core or the linkage rod
Dust or rust on the lock core can cause mechanical jamming. You can clean it with rust remover and then try to open
The breakage of the connecting rod requires professional maintenance (commonly seen in key-lock models)
Ununlocked or the remote key is faulty
Confirm that the remote key has been unlocked (check the battery power of the key)
If the key fails, try to unlock the emergency card slot (with the assistance of tools in the vehicle)
Problems with hinges or sealing strips
Loose hinges or aging sealing strips of the trunk lid can cause difficulty in closing
Check the condition of the hinge fixing screws and rubber strips, and replace the accessories if necessary
Youdaoplaceholder0 suggested processing flow :
First, check the unlocking status of the remote key and the battery
Troubleshooting the lock core/linkage rod (spray rust remover or check the linkage rod)
If the problem still cannot be solved, contact professional maintenance and inspection of hydraulic rods and mechanical components
The repair or replacement plan for a damaged car trunk lid should be selected based on the specific extent of the damage:
Slight concave deformation
Severe impact deformation
If the impact causes structural damage (such as breakage or severe deformation), the trunk lid as a whole needs to be replaced. Replacement at 4S stores can ensure original factory parts and craftsmanship, but the cost is relatively high.
Repair of cracked cover plate
If only the lock cover plate is cracked, it can be repaired by bonding with 502 glue, AB glue, etc. During operation, be careful not to affect other components.
It is recommended to choose the repair method based on the actual degree of damage. Problems involving structural components should be prioritized to be handled at professional repair points.
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