Which parts of new energy vehicles need maintenance?

Although the maintenance cost of new energy vehicles is low, it does not mean that maintenance is unnecessary! Now I will talk about the maintenance items that extend the service life of new energy vehicles.

First of all, you need to pay attention to a primary part: that is, replace the reducer oil. The car needs to be replaced when it reaches 2 years or 40,000 kilometers, because the speed reduction of new energy vehicles is very large, and the large torque will cause pressure on the reducer bearing. If the gear oil is not replaced for a long time, it will damage the gear of the reducer, and even penetrate the entire cylinder wall, which is very dangerous. You need to pay more attention to maintenance at ordinary times. If it breaks down, it will cost tens of thousands more to replace it.

In addition to this, the maintenance of the following parts also requires everyone to pay attention:

01. Battery pack maintenance.

The battery pack is the core component of new energy vehicles, and these need to be checked:

Whether the high-voltage battery pack has odor, bulges, or damage;

Whether the bottom guard plate nearby is deformed abnormally;

Whether the fastening bolts between the high-voltage battery pack and the body are loose;

Whether the heat dissipation and waterproof performance of the battery are normal;

Whether the wiring harness is exposed and the plug is firm;

Whether the air tightness of the battery is intact.

02. Motor and electronic control system.

The motor and electronic control system are the power source and control center of new energy vehicles. Their working status and performance need to be checked regularly to ensure their normal operation.

At the same time, attention should also be paid to the heat dissipation and dustproof performance of the motor and electronic control system to avoid interference from the external environment. Key inspections:

Whether the high-voltage battery pack has odor, bulges, or damage; replace the gear oil, which is generally recommended to be replaced every 2 years or 40,000 kilometers;

Whether the appearance of the parts is intact, whether the wiring harness is exposed, and whether the plug is firm;

Lubricate the motor gears, bearings, and deceleration parts to ensure they are intact;

Whether the system has faults and whether the version is compatible;

Optimize the system. Reducer oil replacement, 2 years or 40,000 kilometers, because the new energy vehicle has a very large deceleration and torque, which will cause pressure on the reducer bearing. If the gear oil is not replaced for a long time, the gear of the reducer will be damaged and even penetrate the entire cylinder wall, which is very dangerous. Not only that, it will cost tens of thousands more to replace it at that time

03. Tires and brake systems.

Tires and brake systems are important guarantees for the driving safety of new energy vehicles, and they need to be checked regularly:

Check parameters such as tire wear, air pressure, and pattern depth; check whether the brake disc is severely worn; check the brake oil status. It is generally recommended to replace it every 2 years or 30,000 kilometers.

04. Chassis and suspension system.

As the component closest to the road surface, the chassis will inevitably be scratched during driving.

Since most of the components of new energy vehicles are concentrated on the chassis, the inspection of the chassis is particularly important. The following parts are checked in particular:

Check whether the transmission components and suspension components are loose or damaged; whether the chassis is rusted, deformed, or damaged; the suspension system should regularly check whether the shock absorbers, springs, connecting rods and other components are damaged or leaking oil.

05. Air conditioning system and cooling system.

The air conditioning system has a certain impact on the range of electric vehicles. Regular inspection and cleaning of the air conditioning filter can improve the efficiency of the air conditioning system. Regular inspection is required to ensure its normal operation:

Regularly check the state, color, quality, and remaining amount of the refrigerant and coolant. Generally, the refrigerant is added every 2-3 years;

Whether there is leakage in water pipes, joints and other parts;

It is recommended to maintain the coolant every 2 years or 40,000 kilometers, but if tap water is added to the coolant, the coolant needs to be replaced that year.