Will the car collapse if the sedan chassis is rotten?

[Ronnie]

The car will not collapse if the sedan chassis is rotten. Here is the relevant introduction about the chassis: 1. Introduction: The chassis refers to the combination of the transmission system, running system, steering system, and braking system on the car. It supports and installs the car engine and its various components and assemblies, forming the overall shape of the car, bearing the engine power, and ensuring normal driving. 2. Function: The role of the chassis is to support and install the car engine and its various components and assemblies, forming the overall shape of the car, and receiving the power of the engine to make the car move and ensure normal driving. At the same time, a good chassis can ensure the driver's life safety.

[Lydia]

I've been driving for over 20 years and have seen several old cars with completely rusted-through chassis. If the chassis rots out, it can really collapse! Especially when the frame rails or suspension mounting points rust through, you'll hear creaking when going over bumps, until eventually the whole car leans to one side. Last time, my friend's old Jetta had such severe chassis rust that the rear suspension detached completely, and the wheel was rubbing against the wheel arch. Don't neglect washing the chassis during regular car washes, especially after driving on snow-covered roads with de-icing agents – cars with rotten chassis feel unstable when driven. If you notice abnormal body vibrations or rust flakes dripping from the chassis, immediately take it to a repair shop for inspection with a lift. If it's beyond repair, scrap the car – forcing it to stay on the road could cause accidents.

[SanAriana]

The worst thing when repairing cars is encountering vehicles with rusted-through chassis. Such cars won't suddenly collapse, but with severe corrosion, even going over speed bumps might deform the body. For example, if the subframe mounting points are rusted out, the suspension will become loose, causing tire misalignment and uneven wear. The most dangerous scenario is when the fuel tank brackets rust through - on bumpy roads, even the fuel lines can get scraped open. Last time there was a ten-year-old car whose chassis steel was as thin as paper - I could poke through it with a screwdriver. Don't attempt amateur welding repairs - the proper fix requires complete section cutting and replacement with new steel. During rainy seasons, check frequently whether the underbody coating has peeled off, especially in coastal cities where rust is particularly common.

[SanWilliam]

The chassis won't collapse like paper, but severe corrosion will ruin its handling. My old Passat's chassis rusted for three years, and I always felt the rear wheels floating during turns - later found out the subframe had rusted through. The mechanic warned that continuing to drive could fracture the shock absorber bracket, causing wheel misalignment. It's recommended to inspect underneath every six months, especially checking the frame rails and sheet metal around the exhaust. If you can press dents with your fingers, stop driving immediately. Underbody coating costs just 300 bucks, far cheaper than major repairs.