
The method for cleaning a car's chassis is as follows: 1. Lift the car to working height and use a high-pressure water jet to rinse the chassis. Pay special attention to curved areas, edges, and fenders, ensuring no mud or grease remains; 2. For particularly heavy grease stains, use a degreasing cleaner and a scraper to carefully clean until the chassis returns to its original color; 3. If there is rust, use sandpaper to remove it, then dry and wipe the chassis clean. Apply an even coat of rust-proofing agent to form a durable protective film. Allow it to air dry naturally after completing all steps. The function of the chassis is to support and install the car's engine and its components, forming the overall shape of the car. It also receives power from the engine to enable movement and ensure normal driving.

Cleaning the car chassis is actually quite important, especially for those living in northern or snowy regions. Over time, the chassis can accumulate mud or salt, which can lead to rust and corrosion of the frame. I often clean the chassis myself. A simple method is to use a high-pressure water spray to rinse off the sludge from underneath the car, being careful to avoid sensitive components like the suspension system. If there are oil stains or heavy grime on the chassis, applying some specialized cleaner and letting it sit for a few minutes before rinsing can improve the cleaning effect. After washing, it's best to wipe it dry or let it air dry naturally to prevent water accumulation and rust. The key is to do it regularly, such as quarterly, which can significantly extend the chassis's lifespan. Don't neglect cleaning after winter snowfalls, as de-icing agents are a major cause of rust. Quickly rinsing them off can protect the metal structure. Although cleaning the chassis can be tiring, it's more cost-effective and safer than repairing the car.

I recommend cleaning the undercarriage in a few simple steps without overcomplicating it: First, find a safe location to park, such as a car wash or your own driveway, where the ground clearance is higher for easier access. Prepare a high-pressure water gun or a powerful hose nozzle to spray away mud and debris. If there's heavy grease buildup, apply some undercarriage cleaner or diluted soapy water, then gently scrub stubborn areas with a brush to avoid scratching the surface. When rinsing, cover all areas thoroughly from top to bottom, especially the corners. After washing, inspect the undercarriage to ensure it's as clean as new, repeating the process if necessary. Personally, I like to apply a rust-proof coating afterward for added protection. Remember to wear waterproof gloves to protect your hands and avoid splashing water onto electrical components to prevent issues. Regularly cleaning the undercarriage after driving in rain or snow helps prevent damage. DIY cleaning is cost-effective, usually around 100 yuan per session, which is more economical than professional services.

Once after driving on muddy roads in the countryside, my car's undercarriage was completely covered in smelly mud. I tried washing it myself and found it quite simple: After parking the car steadily, use a hose or pressure washer to rinse off most of the mud, then scrub the tougher spots with some soapy water to get it clean. Be careful to avoid the engine area to prevent water ingress. After washing, the undercarriage is clean and fresh, preventing rust and significantly extending its service life. Here's a little tip: make it a habit to rinse the undercarriage after rain or long drives.


