Does Skipping 4S Shop After First Maintenance Affect Warranty?

[LydiaLynn]

If a new car under warranty period gets oil, oil filter, air filter, etc. replaced at external maintenance shops, some 4S stores may attribute subsequent vehicle problems to substandard quality of these externally replaced components and refuse warranty coverage. Relevant details are as follows: 1. Prior Consultation: Since fluid-related issues are difficult to verify, to avoid unnecessary disputes, consult with the 4S store before maintenance. Alternatively, consider replacing critical system fluids (e.g., powertrain, brakes, transmission) at 4S shops while opting for external replacement of consumables like AC and air filters. 2. Timely Replacement: Follow the manual's first maintenance schedule. Many manufacturers offer free first maintenance. Even with low mileage, remember that fluids have expiration dates - prolonged non-replacement leads to oxidation and impaired performance.