What Causes the Burnt Smell from a New Car's Exhaust Pipe?

[LeDylan]

Car burnt smell reasons are as follows: 1. New car: It is generally normal for a new car to have this smell. Various rubber and plastic components in a new car produce this odor under high temperatures, which will gradually fade away until it becomes unnoticeable. 2. Gasoline smell: When starting the car in winter, due to low temperatures, it becomes more difficult to atomize gasoline, affecting combustion. Some unburned gasoline molecules are expelled through the exhaust pipe and then enter the car's interior via the external circulation. 3. Brake pad friction smell: If the handbrake is not fully released, the brake pads will continuously rub while driving, producing a metallic burnt smell. 4. Scratched exhaust pipe: While driving, the exhaust pipe becomes very hot. If a plastic bag sticks to it, the bag may melt, producing a burnt rubber smell.