What Documents Are Required for Driving on the Road?

What to Do If the ETC Device Falls Off?

ETC needs to be reinstalled and reactivated after falling off. The installation process for the ETC device is as follows: Upon receiving the device, first check if the ETC card and the electronic tag (OBU) are damaged. Press the anti-tamper button on the back of the OBU. A red light will briefly turn on, and the OLED screen will display "Tag Invalid" or "Please Insert Card," indicating the device is functioning properly. Clean the front windshield, ensuring the surface is smooth, clean, and dry. Then peel off the adhesive backing of the OBU and stick it to the installation position. Press firmly for 2-3 minutes to remove any air bubbles. Insert the ETC card with the front facing the driver and the back facing the windshield. The chip should be inserted into the OBU device. Method to activate the ETC device: Insert and remove the ETC card twice in succession until the electronic tag screen displays "Bluetooth On." If the screen shows "Tag Invalid" when inserting and removing twice without the electronic tag attached, this is normal and does not affect activation. Alternatively, press the button on the top of the electronic tag to enable Bluetooth. Turn on your phone's Bluetooth and open the corresponding mobile app (usually, a download QR code is provided on the electronic tag). Navigate to the device activation interface. Click "Connect Device" and wait patiently for the "Connection Successful" prompt. Once connected, upload a photo of the vehicle's front to complete activation.

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What Causes Clutch Slippage?

The causes of clutch slippage are as follows: 1. The rivets connecting the clutch steel plate and the groove shell flange are damaged or detached, causing slippage between the clutch plate and the transmission input shaft. 2. Insufficient pressure or breakage of the clutch pressure plate springs, resulting in incomplete engagement between the pressure plate and clutch disc. 3. Insufficient release lever clearance or pedal obstruction prevents full engagement of pressure plate and clutch disc, or release levers adjusted too high. 4. The clutch release bearing presses against the release levers, preventing the pressure springs from functioning fully. 5. Oil contamination on the clutch facing reduces friction coefficient, causing driving and driven parts to rotate asynchronously. 6. Severe wear on clutch facing affects engagement, and release lever clearance limits pressure plate movement. 7. The pressure plate gets stuck in its housing, preventing spring extension after compression. 8. Bent or deformed release levers affect engagement, caused by individual levers jamming at the pressure plate contact points.

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What is the Difference Between a Regular Car Remote Key and a Smart Remote Key?

Car regular remote keys and smart remote keys differ in functionality. Regular remote keys can only lock/unlock doors and activate the anti-theft alarm, while smart keys, in addition to these functions, can also disable the engine control unit (ECU) chip, providing a higher level of anti-theft protection. Smart remote keys utilize radio frequency technology and vehicle identification coding systems, integrating both remote control and keyless entry systems to achieve a dual RF system and dual anti-theft protection, offering maximum convenience and security for car owners. The types of car keys include: mechanical keys, remote keys, touchscreen LCD keys, and smart wristband keys. Precautions for using car keys: Do not place them near electronic devices, avoid exposing them to direct high temperatures, do not use batteries with different power levels, and pay attention to daily protection. Method for replacing car key batteries: Remove the car key, insert a flat-head screwdriver into the side gap to open the key cover, and then replace the battery.

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How many liters of engine oil does the Mercedes-Benz E300 require?

Mercedes-Benz E300 requires 7 liters of engine oil. The new Mercedes-Benz E300 uses engine oil with the specification 5W40. If you want to change the engine oil during later maintenance, you can choose Shell, Castrol, Great Wall, Tongyi, or Tianshan engine oils. The viscosity of engine oil changes with temperature, so special attention must be paid to its performance under low and high temperatures. For example, in 5W-30, the first number indicates low-temperature fluidity. 5W means it can withstand temperatures as low as -30°C. The smaller this number, the better the low-temperature fluidity, and the smoother the cold start of the car will be. The latter number represents the kinematic viscosity of the oil at 100°C. The higher the number, the better it maintains viscosity at high temperatures, which can also be understood as better lubrication performance under high temperatures. The method for changing the engine oil in a Mercedes-Benz E300 is as follows: Wait for the engine temperature to drop, and also allow the oil to flow back into the oil pan; Use a wrench to loosen the oil drain plug and place an oil pan to catch the old oil until no more oil flows out. Start the engine and let it run for 30 seconds to allow the oil in the main oil passage to drain out; Use a special wrench to remove the oil filter; Apply engine oil to the oil seal of the new oil filter and tighten it clockwise by hand; Add new engine oil through the oil filler cap on the engine valve cover. Generally, pour about three-quarters of a standard oil bottle; Start the engine and let it run for 5 minutes. Check for any oil leaks around the oil drain plug and oil filter. If there are leaks, perform necessary repairs; After stopping the engine, pull out the oil dipstick and check that the engine oil level is within the standard range.

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Which Parts Are Cleaned in an Intake System Service?

Here are the methods for cleaning a vehicle's intake system: 1. Throttle Body Cleaning: Remove the engine cover, detach the throttle body, clean it with carburetor cleaner, then wipe dry with a cloth before reinstalling. 2. Engine Internal Carbon Deposit Removal: Open the oil filler cap, pour in a full can of engine cleaner (mixing with old oil), close the cap, then idle the engine for 10 minutes before shutting it off. This process dissolves sludge, gum deposits, moisture, and metal particles in the engine while reducing new oil contamination and extending engine lifespan. 3. Fuel System Carbon Cleaning: This includes cleaning injectors, combustion chambers, spark plugs, and throttle valves to address power loss, excessive fuel consumption, rough idling, poor acceleration, or starting difficulties caused by carbon buildup, gum deposits, and contaminants in the fuel system.

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How Often Should the Coolant Be Replaced in the Elantra?

Modern Elantra's coolant replacement cycle is every 60,000 kilometers, with a replacement capacity of 4L. Modern Elantra coolant replacement tutorial: 1. First, the vehicle must be parked for a period of time before the replacement operation can be performed to prevent burns from the coolant. Locate and loosen the coolant drain valve at the bottom of the radiator to allow the old coolant to completely drain out. 2. Put the vehicle in neutral and run it while continuously adding clean water to the coolant reservoir to flush out any residual coolant in the cooling system until the discharged water runs clear, indicating that the old coolant has been mostly removed. 3. When water stops flowing out, install the drain screw and turn off the vehicle's engine. Then, fill the reservoir with coolant to between the MIN and MAX marks. If slightly overfilled, it will not cause any adverse effects. 4. Start the engine again, and at idle speed, the air in the cooling system pipes will be expelled, causing the coolant level to drop slightly. 5. Once the level stabilizes, add more coolant to between the two marks, completing the coolant replacement process.

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What Documents Are Required for Driving on the Road?

What to Do If the ETC Device Falls Off?

What Causes Clutch Slippage?

What is the Difference Between a Regular Car Remote Key and a Smart Remote Key?

How many liters of engine oil does the Mercedes-Benz E300 require?

Which Parts Are Cleaned in an Intake System Service?

How Often Should the Coolant Be Replaced in the Elantra?

What does it mean when the ST light is on in a truck?

What brand is the soluskh25 tire?

What are the symptoms of a faulty EGR?

How to Check the Manufacturing Date of a New Car?