
Toyota Vios does not require underbody coating. Underbody coating can provide rust and corrosion protection, safeguard the chassis during rainy or snowy weather, and reduce noise. The Toyota Vios is a compact 4-door, 5-seater sedan with body dimensions of 4435mm in length, 1700mm in width, and 1490mm in height, and a wheelbase of 2550mm. It is equipped with a 1.5L naturally aspirated engine and a 5-speed manual transmission, delivering a maximum power of 81 kW and a maximum torque of 138 N·m. The drivetrain is front-engine, front-wheel drive, with a MacPherson strut front suspension and a torsion beam rear suspension.

As an average car owner, my Toyota Vios has been in use for nearly five years, and I initially considered whether to apply undercoating. Essentially, it's a protective layer sprayed onto the chassis to prevent rust and corrosion. Honestly, if you drive in dry urban areas, it's completely unnecessary; the car is designed to be durable, and the chassis rusts slowly. However, if you live by the coast or in rainy regions where road salt splashes are common, getting it done can save you a lot of hassle. If the chassis does corrode, repairs can be very expensive. Before I had it done, I consulted a mechanic—typically costing a few hundred bucks, the protection lasts for years. In the long run, keeping it well-protected also boosts its resale value.

I enjoy tinkering with my car and have applied undercoating to my Toyota Vios. The process isn't complicated: simply clean the undercarriage and spray on a layer of rubber or asphalt-based material. It blocks moisture and salt to prevent rust and extend the vehicle's lifespan. The Vios is an economical and practical model with a compact chassis structure - adding this protection gives extra peace of mind on rough roads. If you frequently drive mountain routes or in areas where roads are salted in winter, undercoating is a cost-effective investment. It's inexpensive (just a few hundred yuan) and provides protection for several years, saving you from frequent part replacements. Just mention it during routine maintenance - any auto shop can handle the application.

My Toyota Vios has run 100,000 kilometers, and we've discussed the underbody coating multiple times. For general driving conditions like urban-rural commuting on good roads, it's unnecessary—the rust risk is low, and the car's own protection suffices. However, if you plan long trips or live in humid areas, applying it can prevent minor issues from escalating. The coating is affordable, lightweight, and doesn’t affect performance. My neighbor skipped it and ended up spending thousands repairing rusted underbody parts. Assess your driving habits—if the risk is high, invest a small amount for prevention.

Chassis armor mainly depends on the driving environment. When I drove a Toyota Vios in coastal areas with high humidity, the salt from seawater accelerated chassis corrosion, making armor necessary: a sprayed layer isolates damage and extends part lifespan. In dry inland areas, it's unnecessary and a waste of money. For economical cars like the Vios, chassis protection isn't costly, but its value depends on your location and road conditions. First, check local climate and common road conditions, then consult professional shops for advice.


