Can the Engine Still Run After Cylinder Scuffing?

Why is the Haval network not working?

Here are the reasons and solutions for the Haval network not working: 1. Poor network coverage around the vehicle: Driving into an underground garage or traveling in remote areas with weak signal coverage can cause the vehicle to lose network connection or have a weak signal. The network connection will automatically restore once the vehicle moves out of the area with insufficient coverage, requiring no special handling. 2. Signal interference: Driving near military management zones or similar areas can cause interference with the vehicle's network signal, leading to unstable or interrupted connections. The network signal will return to normal once the vehicle leaves the restricted area, requiring no special handling. 3. The infotainment system needs an upgrade: If the vehicle has not been on the market for long, the infotainment system might not be fully optimized, leading to unstable program operations. When the system is handling multiple tasks, it may experience lag or errors, causing abnormal network functionality, intermittent connections, or complete disconnections. In such cases, the owner can consider upgrading the infotainment system to improve its performance. Start the infotainment system and check for any new software version updates when the network connection is stable. If an update is available, proceed with the upgrade. This can be done via OTA (Over-The-Air) updates by the owner at no cost. 4. Data traffic is turned off: If the data traffic is disabled, the infotainment system will not have network access. The owner can check whether the data traffic switch is turned off and manually reactivate it through the infotainment system without any additional cost.

20

5

Share

Can the Vios Battery Be Turned Off?

The Vios battery can be turned off, but it is not necessary to do so. The designed lifespan of the battery is 27 months. Generally, family cars are more economical, and new car batteries often last 3-4 years. However, after the first replacement, it is usually necessary to replace the battery again in about 2 years. The steps to test the condition of the battery are as follows: 1. Inspect the battery's exterior: Check if the battery casing is bulging, leaking, has broken separators, or if the battery terminals are corroded. If any of these signs are present, it indicates that the battery is dead. 2. Measure the battery voltage: After charging for two hours, measure the voltage of each individual battery cell every 20 minutes. If the voltage is below 13, it indicates a problem with the battery. During discharge, measure the voltage every 10 minutes in three intervals. If the discharge time is faster than other batteries and the voltage drops below 10V, the battery has an issue. 3. Check if the battery is "dehydrated" or blackened: After charging the battery for 3-6 hours, if the charger's red light remains on, it indicates severe "dehydration" of the battery. Open the cover on top of the battery to reveal six round holes. Check the color of the electrolyte in each hole. If it appears black, it means the lead powder from the plates has fallen off, indicating that the battery is dead.

5

0

Share

Where is the USB port on the Haval Big Dog?

The USB port of the Haval Big Dog is located inside the storage compartment under the front armrest. Simply open the cover to use it. If you want to play music from a USB drive, you can store songs on it, but avoid too many formats as the vehicle's computer typically recognizes MP3 format. Below is some related information about the Haval Big Dog: 1. Exterior: The Haval Big Dog measures 4620×1890×1780mm in length, width, and height, with a wheelbase of 2738mm. As an SUV, its side profile showcases its rugged appeal. The iconic split waistline and three-dimensional surfaces draw inspiration from Australia's Gold Coast. The dual-tone multi-spoke wheels are highly stylish, offering a visually robust appearance. The addition of side steps, though not highly practical, enhances the vehicle's wild character. 2. Features: The three-spoke multifunction steering wheel and embedded central touchscreen, along with paddle shifters, significantly elevate the tech-savvy ambiance inside the cabin. The full LCD instrument cluster has a unique design, with a separate screen at the top to display gear positions. The overall clarity is excellent, and the UI is straightforward. The central console features a 12.3-inch large screen packed with all necessary functions for daily use. It operates smoothly, is user-friendly, and has a minimal learning curve. Beyond standard features like online music and radio, it also supports video apps, online downloads, and remote FOTA system upgrades, giving users the freedom to download applications as needed.

13

2

Share

Is the DCT Transmission Wet-Type?

DCT stands for Dual Clutch Transmission assembly, which is referred to as DCT regardless of whether it is dry or wet. However, the type of clutch is categorized into dry and wet. Here is an introduction to DCT transmission: DCT Transmission: The main body of a DCT transmission is a manual transmission, which can also be considered an upgraded version of a manual transmission. A DCT transmission has two sets of clutches, primarily responsible for shifting odd and even gears (including neutral gear), respectively. During operation, these two sets of clutch plates alternate to complete the upshifting and downshifting tasks of the DCT transmission. Generates a large amount of heat: During the shifting process, the friction plates of the two clutches generate significant heat due to extensive friction. This is especially true when driving in congested urban areas, where stop-and-go conditions frequently occur, leading to a high frequency of gear shifts. As a result, the vehicle's transmission clutch needs to work continuously, causing the DCT transmission to produce a substantial amount of heat. Here is an introduction to dry and wet clutches: Dry Clutch: Similar to the clutch in traditional manual transmission cars, the friction plates are cooled by air. Wet Clutch: Like the clutch in motorcycles, it has a multi-plate structure, immersed in engine oil, and cooled by oil. During clutch semi-engagement, the heat generation is enormous. Therefore, dry dual-clutch transmissions are prone to severe failures in congested urban environments due to overheating caused by insufficient heat dissipation. In contrast, wet dual-clutch transmissions do not face the risk of overheating, offering much better reliability.

15

4

Share

What Type of Gasoline Should the Haval H7 Use?

The Haval H7 should use 92-octane gasoline, as this is the recommended fuel grade specified in the vehicle's official user manual. In addition to checking the appropriate gasoline grade in the user manual, you can also find it indicated on the fuel tank cap. Generally, the fuel grade can also be determined based on the engine's compression ratio. Vehicles with an engine compression ratio between 8.6-9.9 should use 92-octane gasoline, while those with a compression ratio between 10.0-11.5 should use 95-octane gasoline. If the compression ratio is even higher, 98-octane gasoline is recommended. However, with the application of new technologies, the compression ratio alone cannot determine the appropriate gasoline grade, as high-compression engines can also be tuned to use lower-octane fuel. Other factors, such as ignition timing, turbocharging technology, and Atkinson cycle technology, also play a role. Generally, the higher the gasoline octane rating, the higher the octane number and the better the anti-knock performance. 92-octane gasoline contains 92% isooctane and 8% n-heptane, while 95-octane gasoline contains 95% isooctane and 5% n-heptane. If the Haval H7 occasionally uses the wrong gasoline grade, simply switching back to the correct grade after use is sufficient. However, prolonged use of the wrong gasoline grade can have the following effects: For vehicles recommended to use lower-octane fuel, using higher-octane gasoline will not cause damage, but the increased octane number can alter the fuel's ignition point, leading to delayed combustion in the engine. This reduces both the engine's power output and thermal efficiency, resulting in poorer performance. For vehicles recommended to use higher-octane fuel, using lower-octane gasoline can cause engine knocking. The significantly lower octane number lowers the fuel's ignition point, causing premature ignition during the compression stroke. If combustion occurs before the spark plug fires, resistance is created during the upward stroke. This resistance makes the engine run very unevenly. Mild knocking may only increase noise without significant engine damage, but noticeable knocking indicates severe engine conditions, affecting not only driving stability but also causing abnormal wear on pistons and cylinders, potentially leading to severe cylinder damage.

14

0

Share

How to Install the Sunroof Weatherstrip?

First, slowly pull out the old weatherstrip along its track and thoroughly clean the gaps inside. Then, continue along the edge track of the sunroof and forcefully press the new weatherstrip into place.

19

1

Share

Can the Engine Still Run After Cylinder Scuffing?

Why is the Haval network not working?

Can the Vios Battery Be Turned Off?

Where is the USB port on the Haval Big Dog?

Is the DCT Transmission Wet-Type?

What Type of Gasoline Should the Haval H7 Use?

How to Install the Sunroof Weatherstrip?

How much does it cost to drive a Volkswagen Tiguan for one kilometer?

How to Distinguish Between Haval EB and EG Engines?

How to reset the maintenance light on an old Mercedes ML350?

What are the differences between the Lynk & Co 05 Time Limited Edition and the AWD Halo version?