Where are the drain holes located on the Buick Regal?

[VanMackenzie]

The drain holes on the Buick Regal are located at the bottom of the doors, and there are also designs behind the front wheel arches of the doors. The purpose of the vehicle's drain holes is to allow accumulated water to drain out of the vehicle during rainy weather. During normal driving, if not cleaned in time, it can eventually lead to water entering the vehicle, and in severe cases, it may cause irreversible damage to the vehicle's mechanical components and electronic devices. Below are specific methods for maintaining the drain pipes: 1. Waterproofing: When driving in the rain or going to a car wash, be careful to prevent water from entering the muffler, which can cause rust and affect the use of the exhaust pipe. 2. Rust prevention: Remove the muffler, block the drain holes, add rust-proof oil, and evenly distribute it inside the cylinder before reinstalling the muffler. 3. Cleaning: The exhaust pipe is often exposed to the outside, similar to the interior of the car. Internal dirt can affect normal use, so it's important to clean the exhaust pipe regularly.