What to Do When the Plastic Underbody Shield of a Car is Broken?

[Susie]

If the plastic underbody shield of a car is damaged, it should be repaired or replaced promptly. The plastic underbody shield protects the engine from impact damage while driving and prevents dirt from accumulating on the engine. Here are some relevant details: 1. If the shield is damaged, it should be repaired or replaced at a 4S shop. 2. The original underbody shields are typically made of plastic or resin, which effectively safeguards the engine and the safety of passengers in the cabin. There are also metal underbody shields, which generally do not pose significant issues under normal circumstances. However, in the event of a collision, the engine may impact the metal plate, potentially causing severe harm to the passengers. The underbody shield not only protects the engine from damage but also helps keep the engine compartment clean by preventing dust and mud from entering.

[GemmaDella]

I once encountered a cracked plastic underbody shield on my SUV, probably from scraping against rocks during off-roading. I temporarily sealed the crack with heavy-duty industrial tape to prevent water or debris from splashing into the engine compartment while driving, but it only worked for a short time. Later, at the repair shop, the mechanic warned that a damaged shield poses significant risks—it could lead to rust and corrosion of chassis components at best, or impair cooling efficiency at worst. He recommended replacing it for about 500 yuan, much cheaper than engine repairs later. I also picked up some prevention tips: avoid parking on uneven surfaces and regularly clean oil stains from the undercarriage. The replacement was straightforward, taking just an hour including labor and parts.

[VonAndres]

Last time my car's underbody shield had a big hole, I tried a DIY fix using epoxy resin to bond the crack, but it only lasted a few weeks before splitting open. From experience, a broken shield shouldn't be ignored—it's designed to protect the chassis and battery pack from sand and debris impacts. Small damage can be temporarily patched with waterproof tape, but for larger breaks, it's best to replace it entirely. Online, shields cost just a few hundred bucks, and installation is simple with just a wrench. Just make sure to buy the correct model-specific part, or it won't fit securely. Daily driving tips: slow down over speed bumps to reduce unnecessary wear and avoid hassle.

[EmilioLynn]

That time when my car's underbody shield broke was quite a scare. The underside was making loud whooshing noises, and upon inspection, I found severe cracks. The shield plays a crucial role in protecting the chassis components from water and stone impacts. A damaged shield could lead to water leakage or short circuits in the generator. I immediately used temporary tape to seal the crack and scheduled a repair. Replacing a new shield isn't expensive, typically costing between 300 to 800 yuan for an average car, and a reputable shop can get it done in about 20 minutes. Regular maintenance should include checking the shield's condition, especially before long trips to ensure it's intact and safe.