Maintenance of electronic anti-theft system

Under normal circumstances, if someone attempts to start the engine in the anti-theft state by illegal means, the anti-theft control module will take intervention measures to close the ignition circuit or fuel injector circuit of the engine and set the fault code.

1. Electronic security is the feature that you are triggered

When the car equipped with electronic anti-theft system fails to start, the first need to determine whether the electronic anti-theft system is locked, or the engine itself has a fault.If the engine starts 2.After flameout, it is necessary to consider whether the electronic anti-blue system is triggered, do not hastily remove the irrelevant parts.

A simple way to determine whether an electronic security system is locked is as follows:

(1) see if the engine is easy to start, but not easy to start.

If so, it’s not a lock.An electronic anti-theft lock is characterized by an engine that can start, but then automatically shut down after 2-10s and never start again.

(2) check whether the anti-theft indicator light on the combination instrument is on.

If the indicator light is on, the anti-theft system is dead.If the indicator light is not on, there is an oil injection signal but weak, it is not an electronic security system lock.

(3) if there is a fault code stored in the control unit of the combined instrument, it indicates that the electronic anti-theft system has been locked.

Electronic anti – theft system locked, generally need to use a fault diagnosis instrument and input a specific password, in order to solve the problem.

2. Access to anti-theft passwords

Theft-proof password is the main basis for theft-proof control module to identify whether it is a legitimate user. Its function is used to decrypt and reconfigure the key.In many cases, the “password” is simply the resistance value of the key.

There are several ways to obtain anti-theft passwords:

(1) a 14-bit identification code and a 4-digit password are posted on the anti-theft control module.

(2) look on the key card.The new car’s security code is embedded in the car’s key card, and scraping off the vinyl will reveal a four-digit security code.

(3) look in the glove compartment.Some cars have anti-theft codes pasted on the left side of the glove compartment in front of the soft seat.

(4) some cars’ anti-theft codes are included in user manuals.

(5) the anti-theft codes of some cars are affixed to the luggage cases of new cars.

(6) if the anti-theft password cannot be found in the above places, you can connect the fault diagnosis instrument and enter the “anti-theft system”. After a few seconds, the 14-bit identification code of the anti-theft control module will be displayed, and then you can inquire the anti-theft password to the service hotline (or telex) of the seller or importer.

3. Solutions to abnormal anti-theft system

(1) alarm horn often sounds.

Some cars park at the roadside and set the anti-theft status, whenever large cars or heavy vehicles through, will cause alarm horn honk, this is because of vibration sensors too sensitive cause.In the electronic anti-theft system, a vibration sensor is installed, which is used to detect the intensity of car body vibration.If its sensitivity is too high, a breeze will cause the alarm, the sensitivity can be adjusted at this time.The adjusting knob is installed on the vibration sensor or in the main engine box.The sensor of the anti-theft system can be removed, or the connector of the main body of the anti-theft device can be removed.Generally, there are adjustment holes left. When adjusting the adjustment knob installed in the host box, it is unnecessary to disassemble the host.

If the car has no obvious vibration, after a period of time alarm horn automatically sounding, this phenomenon is often due to the door did not close well, the door light switch is bad or the wiring caused by a short circuit.

(2) the anti-theft status cannot be lifted.

The fault phenomenon is that in the winter morning, when the remote control sends out the unlock signal, the system has no normal response, the door cannot open, the car cannot start.This phenomenon may be caused by the battery voltage can not reach the alarm start voltage.The treatment method is, to confirm the storage capacity of the battery, check whether the terminal is loose and corroded, electrolyte is missing, if necessary to replace the battery.If the battery on the remote control is short of power and the signal is weak, the anti-theft status cannot be removed. At this time, just change the button battery.

4. Electronic sticky theft indicator reading essentials

There is an anti-theft indicator light installed on the table board of the car. When the electronic anti-theft system fails, the cause of the failure can be preliminarily determined by the different displays of the anti-theft indicator light.

Turn the ignition switch to “ON”. If the anti-theft indicator is ON for 3 seconds and then goes out, the electronic anti-theft system is normal.Turn the ignition switch to “ON” and if the anti-theft indicator continues to be ON 60%, the ignition key matching process is incorrect.

After turning the ignition switch to “ON” 2.5s, if the anti-theft indicator starts flashing and lasts for 60s, it indicates that there is no password chip in the ignition key or an unauthorized key is used.

Turn the ignition switch to “ON” and if the anti-theft indicator blinks immediately and persists for 60% of the time, it indicates a functional failure of the reading coil or data cable.

If you cannot find the cause of the fault, then connect the fault diagnosis instrument to test the electronic flow control system of the car.

5. Electronic anti-theft system is the match after death

Configuration of an electronic security system is required under the following circumstances:

(l) replace the battery.

(2) replace the engine electric control unit (ECU).

(3) replace the new anti-theft control module (including the combination instrument of the third-generation electronic anti-theft system), and replace the anti-theft control module removed from other cars.

(4) replace, add or lose the ignition key.

(5) use improper ways to open the door, including opening the door lock by hand and then opening the door;Break the window outside the car.

(6) use the unregistered key for more than 5 times of starting operation.

The so-called matching refers to the mutual adaptation and confirmation between ECU and electronic components, that is, the engine ECU, the anti-theft control module and the key erase the old code and write new code.When the anti-theft control module is matched with the engine ECU, it is included in the scope of the engine electronic management system.

Take passat B5 automobile (equipped with l.8t engine) as an example. The matching method of anti-theft control module and engine ECU is to connect v.a.g1552 fault diagnosis instrument and then enter 17-11-10-50.The matching method of anti-theft control module and key is 17-l1→10-21.

6. Legal issues on electronic drug theft system maintenance

(1) due to the transmission of anti-starting information, compared with the automobile without electronic anti-theft system, the engine starting time may be slightly longer.

(2) for the failure of electronic anti-theft system, replacement repair method is often ineffective.

(3) when the car needs to be parked for a long time, it should enter the anti-theft state. The operation method is to press the lock button of the remote control.This produces three effects: locking the doors; a single flashing of the turn signal;Enable pot defense kinetic energy.If the car is already out of check, the small red light (LED) on the left front door flashes periodically.After parking, if do not let the car into the theft state, not only is not safe.And the vehicle’s electrical system has been on standby, this time too long will cause the battery capacity of the day consumption (so-called leakage).Some cars parked a few days later but found no electricity, repair personnel inspection may be troubleless, often this reason is caused.

(4) new cars should not be equipped with burglar alarm at will for the following reasons:

(1) add anti-theft device must change the door lock control circuit, and the door money control circuit directly affects the work of the burglar alarm, and indirectly affect the normal work of the engine.Specifically, if the door is open but door lock switch, you can’t get a door debt security control module by iron signal switch, anti-theft control module will decided that the door did not open, the driver did not enter the car, about 25 s and then automatically enters the FangZha alert, make four car door lock to lock, and lock the engine, make it can’t start.

(2) the additional installation of anti-theft device is easy to conflict with the car’s control system, resulting in the engine can not start, because this modification operation is often not standard, resulting in excessive current, interference with the original car’s electronic control system.If you have to install extra preventer, separate it from the ignition system, otherwise it will easily cause the engine can’t start.

The release method of electronic anti-theft system lock

If, due to various reasons, the electronic anti-theft system is locked, the door cannot be opened, the engine cannot be started, and the sound cannot be normally used, special instruments and special procedures need to be used at this time, and the password can be input to restore its performance.Under the premise of not knowing the anti-theft password and basically not changing the anti-theft system hardware, the solution method is called “soft solution mirror”, which saves time and effort.

1. Leave the key on the ignition for half an hour

For the second generation of electronic anti-theft system (reading coil) of the car, you can use the original key ignition switch on, and make the key stay in ignition gear 0.5~l.0h, the engine may start.The essence of this stay process is to allow the anti-theft control module and the engine control unit (ECU) to re-identify the key.Do not turn off the point switch or start the engine while waiting.

2. Use a password reader to get the password

Engine control unit of the security password and against porcelain control module chip password is consistent, so the engine control unit of the chip can be removed, with code reading device to read the password, and then in accordance with the procedures to replace combination instrument, the engine control unit of the password security control module, and then start the engine, engine generally can start was locked.

3. Swap anti-theft chips

For Volkswagen cars, in replacement of the damaged after the ignition switch, try to start with the new key, if the alarm lock engine (embodied in security lights flashing), can use small slotted screw whorls pry original car key department of plastic, remove the send code chip (namely columnar repeater, 13 mm long, 3 mm in diameter), and then install the new key (not original) department within the plastic handle, then start the engine with the new key, finally to drive the car to the repair shop, with fault diagnosis instrument to clear memory, and new key matching.If an emergency is needed, the above cylindrical transponder can be taped directly to the reading coil to enable the engine to run.

A bora l.6L. Vehicle, after replacing the instrument panel assembly, starts the engine to run 2s and then dies, and the anti-theft indicator light is on.This model adopts the third generation of electronic anti-pot system, and the anti-theft control module is embedded in the combined instrument.The engine entered the anti-theft state because the anti-theft control module in the new combination table was not matched.However, it still cannot start after entering the password “13861” according to the method described in the maintenance manual.Since the original combination instrument can be started, it shows that the original anti-theft control module is not damaged, so you can find a 93C86 chip (8 feet) on the original combination instrument, cut it, and then install the two chips on the old and new instrument panel interchangeably.Since the original chip is used, the anti-change password has not been changed (and the mileage is still the original number). After the installation, the engine starts and returns to normal.

4. Serial rheostat queries the resistance of anti-theft key shadow

For the PASS – the KEY prevention system, general motors, can be from the ignition switch to the security control module of the feedback signal wire broken, in the middle a series resistance for 5-10 k Ω variable resistance, and turn the ignition switch to the starting position, then slowly adjust the variable resistor, until the engine starting.Then measure the variable resistance that can be started, which is the resistance of the anti-theft key.Finally, connect a fixed resistance with the same resistance value on the feedback signal line to unlock the device.You can also use the general motors inspection system query j-35628 to find out the grade of ignition key resistance value.

5. Repeatedly unlock the lock

A Honda mileage 3.2l car had flashing lights and a honk that triggered an electronic burglar alarm system when the door was not opened when the key was used to open it.Can use the key repeatedly open, close the mirror method (need to turn many times), sometimes can release the lock state.Investigate the reasons.It is the trigger switch inside the door lock assembly is worn out, the line contact is bad, in the process of repeatedly unlocking, its contact condition has been improved.

6. The door cannot be opened due to battery failure

If the door cannot be opened normally due to battery failure and the remote control does not work, for Mercedes S600 cars, you can disassemble the tail light and use the positive pole of 12V battery to connect the tail light and the negative pole to refer to iron. The tail light should be bright at this time.

Press the turn button on the remote to open the door.

For BMW cars, you can insert the car key into the driver’s side door, turn 30°-45° clockwise, then pull up the door handle and turn the key 90° to open the door.

7. Modular 5V pulse square wave signal

If the lock is caused by the missing unlock pulse signal, the anti-theft control module can be removed.

Find the A3 terminal in the harness connector (it is the data line connected to the PCM, dark blue) and draw a spare line from the A3 terminal.Take another bolt, attach one end of the bolt to the iron, and run the end of the spare thread across the thread area, simulating a square wave of 5V pulses.Repeatedly adjust the speed of the spare line across the threaded area until the engine can start.

8. Use a wire to short-circuit the contact of the relay

For Honda zhige 2.31 car.If the engine is shut off due to road vibration during driving, unplug the circuit break relay of the flow prevention system, and then connect the connector of the electrical contact of the end with a wire, and the engine may start.

9. Keep the controller as close to the door as possible

For general motors (omege-b) cars, if for some reason caused by the remote control system transmitting, receiving the signal of the two sides of the digital difference, will not be able to open the door and start the engine.At this time, you can put the remote control as close as possible to the door, hold down the door button 5 on the remote control.Above, in order to establish a anti – theft system transmission, receiving both sides of the confirmation relationship.

Use the emergency key pad to open the door

For JLR XK, when the electronic door lock system fails to work (due to battery failure, remote control key failure and electronic door tilt system failure), the emergency key in the smart key can be used to open the left front door and trunk cover.

The specific methods are as follows:

(1) insert the emergency key pad into the slot at the bottom of the door cover.

(2) gently lift the emergency key.

(3) carefully turn the emergency key piece and pry out the fixing card and cover.

(4) turn the emergency key in the left front door lock to unlock the door.

To reinstall the door lock cover, force the door back to its original position until it is stuck, and ensure that all 3 locating lugs are stuck in place.

Use infrared signal to unlock

In some mercedes-benz cars, the ignition Key is replaced with a Keyless go, which starts the engine (by pressing the key-les-go on the gearlever) and opens and locks doors and suitcases.Sometimes the “Keyless go” CARD is unrecognized, and the word “CARD NOT RECOGNIZED” appears on the multipurpose display in the dashboard.

For the electronic key of the 2010 modified Mercedes C200, the following two signals can be used to unlock the door.

(1) adopt radio signals.

Press the remote control button on the electronic key to send a radio signal.By wireless amplifier to receive and transmit signals to the SAM (information acquisition and actuating module), after which CAN – B data bus will request the doors solution of electronic key, signal transmission to the electronic ignition switch (EIS), ElS identity authentication of electronic key, if confirm the electronic key for the car’s legitimate keys, and then through the CAN – B bus door unlock instructions to pass the sugar to the left, right, left, right back door control unit, after each control unit through the “line”, make each lock unlock.

(2) adopt infrared signal.

In the case of radio remote control signal failure, you can use the infrared transmission window on the electronic key to aim at the infrared receiver on the left front door handle and transmit the unlock signal.The infrared receiver transmits the unlock signal to the left front door control unit, and the can-b bus transmits the request door unlock signal of the electronic key to EIS, which also authenticates the identity of the electronic key and a series of decoding processes.

SHOULD YOU BUY A NEW OR USED CAR?

Time to replace your car? That means it’s time to decide whether to buy new or used. While there is no correct answer to this age-old question, it helps to know the pros and cons. Take this information into account and consider how it applies to your unique situation.

Here are the pros and cons of buying a used car:

Pros of buying a used car

Lower price – pre-owned vehicles are priced lower than new ones, making them a great opportunity to get a better deal or get into a higher-end vehicle than you may have been able to afford otherwise.

Avoid major depreciation – it’s no secret that new vehicles depreciate quickly. Buying used can help you avoid the ‘right off the lot’ depreciation while still enjoying a reliable ride.

Lower insurance rates – buying used can allow you to pay less to insure the new model of the same vehicle. It can also help you avoid additional fees like freight and (depending where you live) sales tax.

If you want to combine some of the benefits of buying new and used, consider looking for a certified pre-owned (CPO) vehicle. These units are typically only a couple of years old, have lower mileage and come with manufacturer warranties. Learn more about CPO programs and their benefits here.
Cons of buying a used car

Older technology and design – vehicle manufacturers are constantly improving safety options and cool features like surround-sound audio equipment and Wi-Fi. Buying an older model could mean missing out on the latest and greatest features, or new exterior body styling.

Uncertainty around its history – purchasing a vehicle that has had a previous owner raises questions about how it was cared for and whether it sustained any damage. You can rely on a pre-purchase inspection and a CARPROOF Vehicle History Report to give you detailed insight into the vehicle’s past. This will give you a good idea of how well the car’s been cared for, where it’s been driven, if it’s had any damage and whether that damage has been properly repaired.
There are pros and cons to buying a used car – it can save you some money, but it can come with some uncertainty. Fortunately, used car buyers have access to better history and condition information than ever before. If you decide that buying used is the right move for you, make sure to do your research so you can drive away with confidence and peace of mind.

Seven Points to Pay Attention to when Purchasing Used Cars

Whether you buy a used car from a dealer or a private seller, there is a lot you need to know to be confident you’re making a smart purchase.

These questions will help with your information gathering:

1、 What is the vehicle’s condition and current mileage?

⦁    Give the seller an opportunity to tell you about any known issues with the car.

2、Has anything on the car been replaced or updated?

⦁    Updates or replacements can increase the value of a vehicle – like a new set of tires or brakes. This information can help you predict expenses that may come up down the road.

3、Can I take it for a test drive?

⦁    This is an essential part of any vehicle purchase – it’s your opportunity to get inside the car, see how it feels and evaluate if it’s a good fit for you. There are lots of things to look and listen for, and little tests you can perform to get the most out of your test drive –  get a comprehensive list here.

4、Does it come with winter tires?

⦁    Most Canadians need winter tires. Ask the seller if they have winter tires for the vehicle – this could be the add-on you’re looking for to sweeten the deal.

5、Why are you selling the car?

⦁    They could be selling for simple reasons like a growing family or change in lifestyle, or maybe they can’t stand the way it handles in the snow. Either way, this is important information that will help you decide whether to buy the vehicle.

6、Was the vehicle serviced regularly? Do you have the service records?

⦁    The vehicle’s service history gives you a good idea of its condition and how well it was cared for, and records of this service give you proof that it was completed and an idea of what to budget for in the future.

7、Do you have a vehicle history report?

Vehicle history reports tell you about accident history, lien status, registration history, unfixed safety recalls and more. Paired with a  pre-purchase inspection, this is the most important piece of information to inform your purchase, and you should never buy a used car without one.

Arming yourself with the answers to these questions should give you the information you need to make an informed purchase.

Used Cars With a Damage History: What to Do?

Most used car buyers start the shopping process fairly certain on their budget, and many have a good idea of the type of vehicle they’re looking for. A lot of shoppers assume they want a vehicle that’s never been in an accident, and sometimes get scared off if they discover the vehicle does have damage history.

Checking for damage
What many don’t realize is that damage history doesn’t have to be a deal-breaker, and if framed properly, can actually be an opportunity. The first step to knowing how to leverage damage history is to identify and assess the damage itself. Get a CARPROOF Vehicle History Report to learn about what has happened in the vehicle’s past. The report will also tell you about registration history, unfixed safety recalls, lien status and more, making it a key part of the Canadian used car buying process.

Using damage as an opportunity
If you’re one of the many used car buyers with luxury-brand taste on an economy-brand budget, finding damage in a vehicle’s history could be the opportunity you’ve been looking for. Damage history impacts vehicle value, even if the repairs were done perfectly. Just like anything you’d buy—think refurbished phone or laptop—a model that’s been damaged and repaired has a different value than one in its original condition. But if the damage has been repaired properly by a reputable source, the vehicle can still be perfect for you—and its history can allow you to get into a more premium model than you could have afforded otherwise. Remember that damage history impacts value, and keep this in mind during price negotiations to ensure you get a safe car at the right price.

Pre-purchase inspection
The key concept here is “as long as the damage has been repaired properly.” Getting an accident history report and asking the seller for all the information available about the accident and repairs is a great head start to determine if the vehicle is safe. Take the vehicle, the history report, and any anecdotal information you receive from the seller, to a reputable, licensed mechanic for a pre-purchase inspection. This will help the mechanic focus on the areas that need it most. They will check out the whole vehicle, focusing on the areas that have been repaired, and let you know if it’s in good working order.

How do I avoid receiving the tuner ?

Adjustable table is already commonplace in currently used car flow field, a lot of people are selling the car to fetch a high price will be adjusted their vehicle odometer, in order to let everybody to collect as much as possible to avoid being deceived, small make up summed up the three help you identify the tables used car, hope to be able to help you dealer friends.

I、there are usually several places to look

1、is the wear of the steering wheel

Two is the wear of brake pads, three is the wear of tires. “If the odometer says the car has only gone 10,000 kilometers and the steering wheel is badly worn, something is wrong. The same is true for brake pads and tires. However, because the replacement of tires and brake pads may be more frequent, so according to the actual situation: for example, the car is about 50,000 km, but the tires are brand new, there may be some problems. On average, a tire can run about 60,000 kilometers.” But such a view, need to have a certain amount of experience to see probably, but also do not rule out to see out of sight, and for the novice used car people is more difficult.

II、 check information

because the vehicle is generally in 4S shop for maintenance, so you can go to the 4S shop to inquire about the relevant information.

How to avoid receiving water tanker

Bubble water car won’t have traumatic commonly, it is vehicle interior part damage mostly, general naked eye is distinguished very hard come out. In addition to the need for enough experience, to master some skills is also quite necessary, the following small make up of some ways to identify the bubble water car for your reference.

Classification of waterwheel

Slight dip: the water depth exceeds the wheel and rushes into the car. The harm of this kind of car is relatively small, after repairing, the impact on daily use is not big.

Moderate soaking: the water is too deep to cover the dashboard, and the cars are dangerous even when repaired. Don’t buy them.

Heavily soaked: if water builds up over the roof, this type of car is a time bomb and can’t be bought cheaply.

Hazard of waterwheel

Waterlogged vehicles, electrical circuits and electrical equipment can be severely damaged. At the same time, the body parts can also be severely corroded by soaking water. The longer the soaking, the worse the damage.

The maintenance cost of bubble water truck is very high, and the insurance company will not pay the full amount of compensation, so there are many bubble water truck owners in order to reduce their losses, after a simple repair of the car directly sold. Since it is a “simple” repair, the choice of accessories standard is absolutely based on the low price. The most economical way is to take apart the vehicle electrical products to clean, after drying continue to use, what airbag directly removed on the end. After the water bubble after a change has taken on a new look, again on the road, the car stalled, the possibility of brake failure is very high.

How to identify a waterwheel?

1、The appearance is impeccable

After the water car to see the surface basically can not see what flaw. There was no shock, no paint, no sheet metal. But there is one place can see the marks of water, that is the front and rear lights of the car! Lamps and lanterns have been soaked in water, before and after the lamp group internal will have been blister and yellowing traces, especially to pay attention to look at the silver lamp bowl. If the used car or lamp in front of you is excessively new compared with the whole car, you have to pay more attention to it. In order to destroy the body and trace, some repair shops will replace the whole lamp set. If you encounter this kind of situation in doubt, might as well pay attention to the car fog lights. Generally speaking, few people pay attention to fog lamps, and its position is relatively low. Even if the front and rear lamps are changed, fog lamps will not necessarily be changed.

2、Enter the car to smell and observe the details

Everything that has been soaked has a musty smell, and there are so many auto parts that no amount of cleaning and repairing can accurately remove the musty smell from every place. To tell the difference, just go inside and smell it. But if you don’t smell a musty smell but smell a perfume if you have to be vigilant, spray perfume is probably to cover up the musty smell of the water bubble.

Next look at the car seat, seat fabric or leather material, if the water will produce some yellow water, even after cleaning, the surface of the seat will also have different degrees of off color, in addition, because most of the car seat using foam material, material is relatively hard, after water and soft hard will be uneven, vigorously press edge can find difference.

The water is easy to rust, the main look at the bottom of the seat of the metal support, if there is rust, 80 percent is the water bubble, do interior cleaning will never touch there! Of course, if this is too new like the lamp, it is likely to have been replaced. A little gray is normal.

Another area that’s easy to overlook is seat belts. After soaking in sewage, the safety belt will leave obvious water marks, and is not easy to be removed.

3、Open the trunk and look for rust

Open the trunk and lift the cover to see if there is any water stains and observe the corrosion of the vehicle’s tools. If the spare tire is new but the steel hub is obviously corroded, it shows that the trunk has been flooded, most likely by a watercar. If there is water or rust on the bottom of the spare tire, it also indicates that the stern tank has received water.

4、Wiring harness and vehicle chassis

Because of the consideration of maintenance cost, the wiring harness will not be replaced in the maintenance process of the water-soaked truck, so you can check the condition of wiring harness by looking at pillar A, pillar B and roof panel. The most intuitive can be seen whether soaked in water to produce corrosion of the vehicle chassis. However, car sellers may not want you to check out these two places. However, according to your previous appearance, interior judgment, whether the vehicle is a bubble water car can be seen. No matter how the engine, how the chassis, as long as you find the signs of water soaked car, this car you just give up!

How to Buy Used Cars

I. Why Buy Used Cars
1、Many used cars with the same quality as new cars are 20% – 30% cheaper than new ones.
2、The premium will be cheaper. There are many factors that determine the premium. For example, the insurance of sports cars makes SUVs expensive. Insurance for premium cars is more expensive than insurance for junior cars. Boys’insurance is more expensive than girls’ and it will be cheaper for boys to start insurance at the age of 26. Married is more expensive than unmarried and so on. When buying insurance, you need to fill in the address. If the address is in a well-policed area, it will be cheaper than the address in a poorly policed area. So if you have friends living in a safe area, you might as well fill in the address of your friend’s home.
3、Used cars are also maintained by manufacturers.
4、The condition of the car can be traced by VIN.
II. Choose a used car for you
Most car buyers probably know what kind of car they want before they buy it. But here’s a reminder that if you want to buy used cars without manufacturer maintenance, you’d better buy Japanese cars (Honda, Toyota, Nissan, Acura, Lexus, Infinit).
III. Do a good job of research before buying a car
1、Many car-buying websites offer free valuation services. You can find the daily wear and tear cost of the target model and the average fuel cost in these websites. (http://www.edmunds.com/tco.html).
2、You should also find out the market value of the car you want to buy first, so that you can know the bottom line when bargaining (http://www.kbb.com).
The most popular car-buying websites in the United States include:
Www.cars.com
Www.autotrader.com
Www.carmax.com
Wait
IV. Auto Loans
It’s limited to buying cars at the car dealership. Usually, no loans will be provided for buying and selling used cars privately. You can call 2 or 3 banks before you buy the car loan to ask what the interest is, and then go to the car to talk. Usually, the loan of automobile companies is more cost-effective, but some automobile companies are not good at entertaining international students and may charge higher interest than banks.
V. Where to Buy Used Cars
1、You can find many private car sellers on craiglist. Their prices will be lower, but the quality will be very uneven. If you don’t know a lot about cars, it’s not recommended to buy used cars in this way.
2、The second way is to buy it in a private car shop. This approach is similar to the first one, except that there may be more choices, some private car dealers may also provide maintenance, and consumers may have more guarantees.
3、The third way is to go to the car shop to buy. For used cars, I personally recommend Certified Pre-owned. Although this second-hand car is a little more expensive than the ordinary second-hand car, the manufacturer will provide the same maintenance as the new car. Because I don’t know much about cars, I think it’s safer, and I’m more assured.
VI. Test Driving
Test driving is an important part of buying a car. Through the test drive, you can see some details of the car (such as whether the driver’s seat is clean, whether the automatic window can move, etc.). Of course, friends who are experienced in cars will have many ways to test them. A simple way is to let the car cool down thoroughly, then hit the car, listen carefully to the sound of the engine, pay attention to whether there are strange sounds and so on. Then speed up to about 55 miles and press on the brakes vigorously to test whether the brakes are deflected properly.
VII. Bargaining
If you do research before buying, you may know where the bottom line of the car shop is and where the bottom line of your acceptance is when you buy a car. Of course, it’s hard to get the car we want at the lowest price. If after a round of bargaining, we still can’t reach the price you want, so we’ll go away. When bargaining with the car dealer, you should ask the car dealer to give you a total price (also known as out of the door price) rather than the price of the car. Sometimes the car dealer can reduce the price of the car and earn money elsewhere. Also, before signing any name, you should see what you are signing.