
Pressure loss requires going to a 4S shop if there is no inflation equipment. When the tire pressure drops to the minimum limit, the tire pressure monitoring system will alert the driver. If there is no inflation equipment, you can also drive the vehicle to the nearest repair shop or 4S shop for inflation. Tire pressure monitoring can currently be divided into two main types: direct and indirect. Both present the tire pressure in specific numbers or states to the driver through the combination meter and issue alerts when the tire pressure is too high or too low, or when the tire temperature is too high. Excessive tire pressure reduces the contact area between the tire tread and the ground, affecting braking performance. It can also cause abnormal bumps during driving, reducing comfort, and the tire tread wear will be abnormally concentrated in the middle. Insufficient tire pressure increases the contact area between the tire tread and the ground, leading to higher rolling resistance, which increases fuel consumption. Additionally, the tire tread wear will be abnormally concentrated on both sides. In severe cases, it can cause the tire to develop standing waves, directly leading to the risk of a blowout.

A few days ago, my old car also experienced a pressure loss issue. Let me share my experience. If the tire pressure is low, there's no need to rush to the 4S shop—just use a portable air pump on the roadside to fix it. For serious air leaks, a simple tire repair at any auto repair shop will do the job in about half an hour and it's cheap. However, if the engine oil pressure warning light comes on, you must not take it lightly. That time, when my dashboard flashed a red light, I immediately pulled over and had it towed to the 4S shop. They found it was an oil pump issue, and the mechanic said continuing to drive could have destroyed the engine. Honestly, 4S shops mainly have more professional equipment, like being able to precisely detect minor leaks in hydraulic lines, which ordinary shops can't identify. Overall, tire issues can be handled outside, but for core problems like the oil cooling system, it's worth spending a bit more at the 4S shop for peace of mind.

As a newbie who just got my car, seeing the dashboard pressure warning light for the first time really scared me. Later, an experienced driver friend taught me how to distinguish issues: if it's low tire pressure, it's completely manageable by yourself—just use the onboard air pump to inflate to the recommended value. However, if it's abnormal engine oil pressure, you must take it seriously. Last time, my friend's car broke down on the highway because of this. When I went to the 4S shop, the technician used a professional diagnostic tool and found that the cylinder head gasket had aged, replacing it with a new part on the spot. Honestly, 4S shops are more expensive but follow standardized procedures, unlike some small shops that might use inferior parts to cut corners. I recommend that friends who often drive long distances keep a tire pressure gauge in the car and top up the air promptly if the pressure is low. If you encounter issues with the oil pressure or cooling system, it's more worry-free to drive directly to a 4S shop.

When it comes to pressure loss, I hate queuing at 4S shops the most. Last time when I detected abnormal tire pressure, I directly used a mobile app to monitor it. After confirming which tire was low on air, I found a tire shop along the way and got it inflated in just five minutes. However, pressure drop in the cooling system is more troublesome. Once, coolant leakage caused the water temperature to soar. Fortunately, I stopped in time and went to my trusted repair shop to get it fixed. I recommend car owners to buy a set of simple testing tools and check tire pressure and oil pressure themselves every month. It saves time, effort, and money. Unless it's a new car under warranty or a dangerous fault like abnormal brake boost occurs, it's worth going to a 4S shop and spending that labor cost.


