Will private auto repair shops replace car parts without permission?

[SanMariana]

Generally, private auto repair shops do not replace car parts without the owner's knowledge. The main reason is that most private repair shops value their reputation to attract business. If they are caught replacing parts without permission, they could face severe consequences, including potential closure, which would outweigh any benefits. Therefore, private repair shops usually avoid taking such risks. Do not casually agree to the removal of critical components: Complex major components like engines and transmissions have strict assembly parameters. Some brand-specific parts even require assembly in absolutely dust-free and cold environments. Therefore, car owners should not readily agree to the disassembly of these critical parts. Ensure the reliability of replacement parts: When repairing a car, always choose parts with quality guarantees. Many repair shops, including some authorized dealerships (4S shops), may clean and reuse salvaged parts, passing them off as new or even using substandard components, which can pose hidden risks to the vehicle.