What are the effects of replacing the windshield at a 4S store?

[MacGemma]

4S stores use original factory-shipped glass, which are all vehicle-mounted parts. There are no negative effects. Here are some precautions to note after windshield replacement: 1. Avoid washing the car for three days: To prevent wind and water leaks, do not wash the car for three days, and remove the tape securing the windshield position after three days. 2. Drive smoothly: Maintain steady driving and avoid sudden braking or rapid acceleration. 3. Avoid excessively bumpy roads: Try to avoid roads with too many bumps to prevent the windshield from shifting. 4. Control speed: Keep the maximum speed below 80 km/h and avoid high-speed driving.

[SanJayden]

The most obvious feeling about replacing the windshield at a 4S shop is that it's worry-free but costs more. I had mine replaced after it was cracked by a stone. Their glass is 100% original factory parts, exactly the same as when it left the factory, with no optical distortion or thickness deviation. During installation, I saw the technician using a professional positioning bracket to secure it, and the adhesive used was original factory sealant, unlike roadside shops that just slap it on carelessly. However, the bill was indeed about 30% more expensive than at a repair shop, and you often have to wait in line for parts. After replacement, you also need to be careful not to wash the car or drive on the highway for three days to let the adhesive fully cure. It's been over two years now, with no leaks or strange noises. Once, they even fixed a small crack at the edge of the glass for free, so the higher cost is somewhat justified by the peace of mind.

[PeterRose]

As a daily commuter, the most frustrating part of getting my windshield replaced at the 4S shop was the time cost. After making an appointment, I had to wait three days just to get a service bay. Removing the old glass alone took over two hours because they had to carefully handle the attached rain sensor and camera wiring. The upside is that I got OEM glass with a noise-reducing coating – the wiper noise during rain is noticeably quieter now. The price did give me pause though; using insurance still left me paying an 800 RMB co-pay, while paying out-of-pocket would've cost three to four thousand. The technician specifically mentioned that the new glass has an extra UV-blocking layer to prevent arm sunburn during summer drives, which is genuinely useful. On the drive home, I noticed the HUD display was slightly blurry, requiring a 30-minute recalibration when I went back.

[LaLandon]

Last year, when getting the windshield replaced at the 4S dealership, safety was my biggest concern. The receptionist said the most critical part of the job was the adhesive—they used black polyurethane glue, which can withstand 300 kg of impact force after curing, while roadside shops often use clear adhesive with only half the strength. During installation, I noticed the technician using an infrared level to adjust the tilt, mentioning that an error exceeding 1 degree could affect the car body's rigidity. Upon pickup, they provided a two-year warranty. Once during a car wash, I noticed bubbles at the edges, and when I took it back, they replaced the entire windshield without hesitation. Now, every time I hit the highway, I instinctively check the corners of the glass—fortunately, there haven't been any issues with air leaks.