1. When checking the tire pressure, also check the tire wear.
Difficulty index: ★ ☆ ☆ ☆ ☆
Making sure the tires are in good condition is the most important thing you can do in maintenance. The road traffic law suggests that car owners should check the tire pressure once a week, and it would be better to check the tire wear by the way at this time.
When checking the tire pressure, first look for the tire standard barometer, which is usually located on the door, fuel tank cover or vehicle user manual, indicating the standard range of tire pressure and judging whether people are overweight.
Because heat expands and contracts, you need to measure the tire after cooling to be more accurate. Remove the dust cover on the tire valve, press the valve interface of the tire pressure gauge on the tire valve to detect the tire pressure; You can also use the pressure gauge on the tire pedal pump or the gas pipe at the gas station. If the pressure gauge shows that the tire pressure is too low, it is necessary to inflate the tire with an air pump to a reasonable value.
When measuring values, you can also look at tread patterns and tread scratches. If you find nails on the tread, don't pull them out, because it may cause discouragement. At this time, it is necessary to slow down, find a tire repair or go to a dealer, repair some damage at a low price, or change a new tire.
Finally, check the tread depth. You can use a tread depth measuring instrument or a one-dollar coin. The outer edge is about 1.85 mm thick, which is the recommended minimum tread depth. Insert coins into the tread pattern. If you can see the outer edge of the coin, you need a new tire.
The road traffic law stipulates that "the tread pattern depth in the middle three quarters of the whole tread needs at least1.6mm."
2. If you are a technical house, you can do it yourself.
Difficulty index: ★★★☆☆
Although this maintenance difficulty rating is three stars, different models have different differences. Some cars may be completed in two minutes, some cars may take two hours, and some cars will grind their fingers. Compared with modern models, the headlights of old cars are usually easier to maintain, because modern models are generally difficult to touch the inside of the headlights.
Most. Headlamp bulbs are fixed by metal clips in the lampshade. Once the lampshade and base are removed, and then the clip is removed, the light bulb can slide out. Take off the light bulb, and then slide the new light bulb in, taking care not to touch the glass. Connect the base, put back the metal clip and lampshade, and you can try out the new lamp.
Taillights are generally easier to maintain because they are easier to disassemble and assemble. Before opening the bulb bracket, you need to open the interior trim panel of the car trunk. In most cases, a bracket supports multiple light bulbs. Most taillight bulbs use snap-in devices, which require you to gently press the bulb and rotate it, a bit like a child-proof medicine bottle. Then press the light bulb in the reverse order.
3. The windshield washer fluid was added correctly by yourself.
Difficulty index: ★ ☆ ☆ ☆ ☆
This maintenance is too simple. First find the windshield washer tank, which is generally located under the front hood and marked with the washer nozzle. Usually, the lid of a can is snap-in. If you find a spiral, you are wrong. Please check the manual for confirmation.
After opening the lid, fill the funnel with washing liquid. Special cleaning solution is superior to ordinary water and mixed solution of water and cleaning solution because it has good anti-freezing and cleaning effects.
Fill the reservoir with water and cover it.
4. antifreeze should not be sloppy.
Difficulty index: ★★★☆☆
The function of antifreeze is to prevent the engine water tank from freezing. Also called coolant, because it can take away the excess heat energy generated when the engine is running, make the engine run at normal working temperature, and you can also avoid being trapped in the vast steam on the roadside. So, don't just use water as antifreeze.
The coolant reservoir is located under the hood and has an identifiable warning label on the tank cover. But you'd better check the manual to make sure it's correct. Before opening the cover, please ensure that the engine is in a cooling state to avoid rapid heating and rapid ejection of frozen liquid.
The anti-boiling and anti-freezing performance of antifreeze is not permanent and needs to be replaced every few years. The coolant detector in the parts store can help you measure the relevant data to determine whether it is necessary to change the coolant.
There are many kinds of antifreeze to choose from, so it is best to buy the right product according to the instructions and the seller's suggestions. But no matter which product you choose, you need to add the right water according to the coldest weather. Everyone should make a decision according to the manual and professional advice.
Finally, open the liquid storage tank and fill it with liquid. It is best to use a funnel to prevent the liquid from leaking and damaging the car paint.
It is not difficult to check the oil.
Difficulty index: ★ ☆ ☆ ☆ ☆
It is also easy to check the oil, but for accurate measurement, it is also necessary to ensure that the engine is cold and park the car on a level ground. After determining the position, insert the engine with a dipstick (usually yellow or orange handle).
Pull out the dipstick and dry it with a roll of paper. Be careful not to drip oil. Repeat the operation again and then take it out again. At this point, the oil stops somewhere between the minimum and maximum values. If it is at or near the maximum, everything is fine.
6. Oil should be replenished at any time.
Difficulty index: ★★★☆☆
If the dipstick shows that your oil is close to the minimum, you need to add some oil. In order to avoid engine damage and warranty failure, you must choose the correct grade of oil. This is written in the manual, and the dealer will also tell you the relevant information.
Oil labels are usually expressed in numbers and letters, such as 10W-30, but there are also synthetic engine oil and non-synthetic engine oil.
When the engine is cold, find the oil cover (the top of the engine is marked with an oil pot). It is best to clean up the dust and sundries around before opening the cover to avoid falling into the engine.
After opening the cover, slowly pour the oil into the engine with a funnel. Wait a moment, and then measure the depth with a dipstick. This value should be less than the maximum value. Add more if necessary, but don't fill it too full. Take out the dipstick, cover it and wipe off the dripping oil.
7. Air filters should also be cleaned and maintained.
Difficulty index: ★★★☆☆
Air filters play a great role. It can filter out dust and sundries in the air and protect the engine, so its cleaning and maintenance is also very important.
Most filters are located in a plastic box on one side of the engine. To open the top of the bellows, you need to loosen some metal clips or screws. Air filters are usually yellow with orange edges. After writing down the placement direction, take out the filter and put in a new filter. Finally, cover it and install the metal clip.
8. Don't try if the spark plug is not awesome.
Difficulty coefficient: ★★★★★☆.
The importance of spark plugs is self-evident. The spark it produces can ignite the fuel in the engine, so it must be well maintained. However, because the spark is ignited in the engine, black deposits will be produced in the long run, so it needs to be replaced every few years.
Spark plugs are different. You should consult the seller or parts store before buying them. Its replacement varies from car to car, but no matter what kind of system your car is, make sure that the engine is in a cool state before replacement, and only change one spark plug at a time.
Many modern cars use ignition coils wrapped in plastic and connected to the top of the engine. We can remove the fastening bolt with a socket wrench, then untie the wire harness and gently remove the coil. In the structure of classic cars, each spark plug has an ignition wire (also called HT ignition wire), which needs to be removed every time.
Finally, carefully unscrew it from the engine with a spark plug remover. If you can't turn, don't use force to avoid damaging the engine. At this time, you should seek the help of professionals. Remove the old spark plug, apply a little copper oil to the thread of the new spark plug and tighten it in place. Similarly, don't force it. When finished, install the fuse or coil.
Friendly reminder, some models, it is easy to replace the spark plug, but some cars are difficult to disassemble, really depressed, so find a repair shop at this time.
9. Car washing is also a kind of maintenance.
Difficulty coefficient: ★ ☆ ☆ ☆.
Never thought that car washing is also a kind of car maintenance, did you? But it's true. Car washing can clean dirt and bird droppings. Especially in winter, it can also wash away the residual snow and salt on the road. Salt will corrode car paint and lead to rust.
Manual car washing is generally considered to be the mildest way of car washing, because automatic car washing and spray washing will scratch the surface of the car and cause paint loss. There are many car cleaning fluids for us to choose from, and those are better than household cleaning fluids because many of them contain salt.
Prepare a soft cloth and a bucket of warm soapy water and scrub your body from top to bottom. After each board is scrubbed, wring out the towel and put it in a bucket to avoid polluting the water. The bottom of the car and tires are the dirtiest, so just scrub them at last. After all scrubbing, rinse off the soap residue with a bucket of water or a hose, and then dry it with a clean microfiber towel.
Remember, don't forget to scrub the doorposts and wheel arches, which are prone to dust accumulation.
After washing the car, protect the top coat with good wax. Suitable car wax can be applied with a dry towel and applied in the circumferential direction. In the process of smearing, some places may be blurred after drying. At this time, wipe it with another soft towel in the same way until the wax line is not clear under the bright paint.
10. It is not difficult to change the wiper yourself.
Difficulty coefficient: ★ ☆ ☆ ☆.
Different models have different sizes and accessories, so you need to choose the accessories that suit your model. You can replace the rubber strip yourself, but it is not cost-effective, because you want to buy a new rubber blade, so you need to replace it.
After turning off the wiper, gently lift it from the windshield. The flagpole will be raised and fixed. Stand the wiper at a 90-degree angle so that you can reach the clip at the root.
Most clips are different, so the assembly structure should be carefully checked before disassembly, and the disassembly methods of different mechanisms are different. Most wiper blades have clips, and the wiper can only be removed after being pressed. As long as you hear a click, you can take it off.
Press the new wiper according to the following steps in turn. Finally, after putting down the wiper, check the cleaning effect.