How to Use the One-Touch Window Control Feature with Mercedes-Benz Key

Is the Subject 3 Test Conducted at Night?

Generally, the Subject 3 driving test is conducted during the day. Here are some relevant explanations: 1. Lighting: Human eyes can see objects clearly under good lighting conditions, but the range and clarity of vision become very limited when lighting is insufficient or absent. 2. Surroundings: During daytime driving, one can judge distances, determine directions, and avoid obstacles by observing surrounding objects or reference points. However, in nighttime or dark environments, it is difficult to make quick judgments based on the surroundings, which is why nighttime driving techniques differ from those used during the day.

8

0

Share

What is the fault when water comes out from under the car?

Here are three possible fault conditions: 1. Coolant reservoir leakage: The coolant reservoir is made of plastic and may become brittle and prone to cracking after several years of use. 2. Coolant level too high: If the coolant level is too high, it can easily overflow from the pressure relief valve on the reservoir cap. When adding coolant, avoid overfilling—just fill between the MAX and MIN marks. 3. Coolant hose damage: Like the reservoir, coolant hoses are made of plastic and may deteriorate over time, leading to potential leaks at connection points.

20

4

Share

What does the wrench symbol on the car dashboard indicate?

When a wrench symbol appears on the car dashboard, it indicates a maintenance reminder. Here are the solutions when the wrench light comes on: 1. Turn the ignition key to the ON position, then press and hold the mileage reset button until the dashboard lights up before releasing; 2. Simultaneously press the brake and accelerator pedals, waiting for the maintenance light to flash for 15 seconds; 3. Release both the brake and accelerator pedals. Car maintenance tasks include: 1. Changing the engine oil and oil filter; 2. Regularly cleaning the air filter; 3. Replacing brake fluid, transmission fluid, battery, throttle body, fuel injectors, and brake pads. The benefits of car maintenance are: 1. Ensuring optimal vehicle performance; 2. Enhancing driving safety; 3. Reducing engine noise; 4. Extending the vehicle's service life.

11

3

Share

How soon can a car be driven after a small area touch-up paint job?

Small area touch-up paint jobs can typically be completed within a few hours, and the vehicle can usually be driven on the same day after the paint has been applied. However, it is important to avoid exposing the touched-up areas to corrosive cleaning agents such as adhesive removers or tar removers, as these can completely dissolve the newly applied paint. Below is some relevant information about automotive paint: 1. Function: Automotive paint is a protective film sprayed onto cars, serving as a type of coating that helps prevent corrosion of the vehicle body. 2. Precautions: Always refer to safety technical data before use; thoroughly stir the paint before application to ensure uniform color; wear appropriate protective gear, including a respirator and work clothing, during use.

20

5

Share

Can I Watch the 990 Minutes of Subject 1 Freely?

According to the "Motor Vehicle Driver Training Teaching Outline," completing 12 class hours is sufficient to schedule the Subject 1 exam. Here are the relevant details: 1. Subject 1: The primary learning method is practicing questions, as the questions on the software are the same as those in the exam, only arranged differently. Watching videos mostly serves as basic road traffic safety warning education for candidates, so whether you watch them carefully or not has little impact. 2. Scheduling: As for how long after watching the videos for Subject 1 you can schedule the exam, it actually depends on whether the 12 class hours have been completed. Once the 12 class hours are met, the system typically reviews the application within 1-3 working days, and upon approval, you can proceed to schedule the exam.

8

4

Share

Where can ETC be installed?

The ETC installation position is generally in the upper middle part of the front windshield for most vehicles, while for large vehicles like trucks and buses, it is installed in the lower middle part. The appropriate installation position should be no lower than 1.2 meters and no higher than 2.5 meters, with an installation angle between 30 to 90 degrees. For vehicles with factory-installed or aftermarket anti-explosion films, which may affect the signal transmission of the microwave communication link, the ETC should be installed in the microwave window area. ETC stands for Electronic-Toll-Collection, meaning electronic toll collection system. To apply for ETC, the vehicle owner needs to provide valid identification and the original and photocopy of the vehicle registration certificate. If the application is not made by the owner, the agent's valid identification is also required. The photocopy of the vehicle registration certificate should include the page with the most recent annual inspection stamp. A bank card for deducting highway tolls is also required, and the vehicle must be registered under the name of an individual aged 18 to 60. For company vehicles, the required documents include: An introduction letter from the vehicle owner (with official seal); a photocopy of the organization code certificate or business license (with official seal); the original ID of the agent; the original vehicle registration certificate; and the vehicle that needs to apply for ETC. Here are some precautions for installing ETC: Do not obstruct the view; it is best to install it behind the rearview mirror: Many car models have a large inclination angle of the windshield, which can reduce the driver's field of vision. If ETC is installed without considering this, it may increase the driver's blind spots. Installing it behind the rearview mirror on the right side can avoid obstructing the view. Do not affect charging: The ETC electronic tag consumes power, but generally does not require charging or battery replacement because it has a solar panel on the back that can charge itself. Therefore, during installation, avoid the black areas on the windshield and positions that may block the solar panel. Once installed, do not remove it casually: The button in the middle of the adhesive is an anti-removal lever, connected to a switch below. After the electronic tag is installed, the windshield will press the anti-removal lever in. If it is removed casually, the anti-removal lever will pop out and trigger the switch, locking the electronic tag and making it unusable. In this case, you need to go to an ETC service point to unlock it. This is designed to prevent multiple vehicles from sharing one device. When using ETC, note the following: The ETC transaction sensing area is 8 meters. To prevent the ETC device of the vehicle in front from malfunctioning, maintain a distance of more than 10 meters from the vehicle in front to avoid automatic payment for the vehicle in front. The ETC lane recognition speed is 20 kilometers per hour. If the speed is too fast, the vehicle device information cannot be read, leading to payment failure. When using a debit card bound to ETC, insufficient balance will also cause payment failure.

3

2

Share

How to Use the One-Touch Window Control Feature with Mercedes-Benz Key

Is the Subject 3 Test Conducted at Night?

What is the fault when water comes out from under the car?

What does the wrench symbol on the car dashboard indicate?

How soon can a car be driven after a small area touch-up paint job?

Can I Watch the 990 Minutes of Subject 1 Freely?

Where can ETC be installed?

What does car media mean?

What are the issues to pay attention to when driving?

What is the treatment method for color penetration in white car paint?

How to Turn on the Warm Air in Vios?