What Causes the Vehicle Body to Cross the Line During Parallel Parking?

[Wayne]

The reason is that the driver turned the steering wheel back too early during the parking process, before having a chance to correct the direction in time. Here are the relevant details: Body Crossing the Line: During parallel parking, the vehicle body crossing the line means that the projection of the body has exceeded the boundary, which is considered a failure in the driving test. Currently, driving tests use infrared sensors. During the test, even if the wheels do not touch the line, if the distance is very close and the infrared sensors detect that the body is over the line, it will still be marked as a failure. Precautions: Before the test, adjust the seat and rearview mirrors properly. At the beginning of parallel parking, find the correct parking spot to prepare for the next step of reversing. When reversing, turn or straighten the steering wheel promptly upon reaching the designated point.

[StEmilio]

Last time, there were several white lines on the side of my car. Upon careful reflection, I realized they were scratches caused by accidentally scraping against a low pillar while turning in the supermarket parking lot without paying attention. Such issues are quite common, mostly resulting from careless driving, such as reversing into roadside obstacles or taking turns at too sharp an angle. Lines on the car body indicate paint damage, and in severe cases, the primer may be affected, leading to rust on the metal, which can spread over time. I usually recommend developing the habit of checking around before driving, especially using mirrors for assistance in tight spaces. If lines have already appeared, minor scratches can be treated with scratch wax by yourself, while deeper ones require professional repainting at a shop. For daily maintenance, avoid parking in areas with gravel and regularly wax the car to protect the paint, reducing the likelihood of such damage. Keeping the car body in good condition also helps maintain its value and prevents rapid depreciation.

[SanAnna]

I've seen many cars with side door scratches, caused by various reasons. The most common is hitting a pole or railing while parking, leaving dark streaks; or tiny scratches from flying stones hitting the body while driving. Long-term exposure to sun and rain can also cause paint to age and crack, forming subtle but annoying linear marks. From my perspective, these scratches expose issues with external factors or driving habits—they should be addressed promptly, otherwise, when the paint peels off, rainwater can seep in and cause rust. A simple solution is to cover minor scratches with wax paste; for major damage, visit a repair shop for repainting. Additionally, avoid using hard brushes when washing the car—gentle cleaning helps protect the surface. Overall, cultivating safe driving and regular maintenance habits can prevent most of these scratch issues.

[OElaina]

My car keeps getting fine scratches on the side, and after analysis, it's mainly due to careless parking and bumping into things. Body scratches usually originate from paint damage, possibly caused by tree branches or bicycle racks. Minor scratches only affect appearance, but ignoring them can worsen the situation. I'll clean the scratches as soon as possible to prevent rust, and regular maintenance helps keep the paint surface clean and shiny.