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What maintenance is required at 25,000 kilometers?

1 Answers

VanRichard

07/25/25 4:24pm

When a car reaches 25,000 kilometers, the following nine maintenance items should be performed: 1. Engine oil, oil filter, air filter, and cabin air filter: Replace according to the manufacturer's specifications. If maintenance is done every 5,000 kilometers, 25,000 kilometers is the standard interval. 2. Fuel filter (gasoline/diesel): The fuel filter removes impurities from gasoline or diesel. A clogged filter can reduce fuel supply pressure. 3. Transmission fluid replacement: Follow the manufacturer's recommended schedule for the first transmission fluid change. 4. Coolant replacement: Test the pH level with a pH strip. If the coolant remains slightly alkaline, clear, and free of sediment or impurities, replacement may not be needed yet. 5. Spark plug replacement: Replace according to the manufacturer's guidelines. 6. Brake fluid replacement: Brake fluid absorbs moisture over time. High moisture content can cause boiling under high temperatures, leading to vapor formation. Since vapor is compressible, this can result in soft brakes and reduced stopping power. 7. Battery electrolyte check/replenishment: Most modern cars use maintenance-free batteries, but electrolyte levels should still be checked periodically and topped up if low. 8. Tire rotation: Due to suspension system characteristics, tires wear unevenly. Manufacturers recommend regular tire rotation to promote even wear and extend tire life. 9. Additional services: Throttle body cleaning, fuel system cleaning, injector cleaning, lubrication system maintenance, and catalytic converter cleaning.

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