As an automotive expert with years of experience in the industry, I can provide you with a comprehensive overview of what a major service typically includes for a vehicle. It's important to note that while the specifics can vary depending on the make and model of the vehicle, there are certain commonalities that are generally included in a major service. Here's a detailed breakdown:

1. Oil and Filter Change: This is a fundamental part of any service, major or minor. The engine oil lubricates the engine's moving parts, reducing friction and heat, and the oil filter removes contaminants from the oil to ensure it can perform its function effectively.

2. Fluid Replacement: Besides engine oil, other fluids such as transmission fluid, brake fluid, power steering fluid, and coolant are often checked and replaced as needed during a major service. These fluids are crucial for the proper functioning of various systems in the vehicle.

3. Spark Plugs: These are essential for ignition in gasoline engines. Over time, spark plugs can wear out and need to be replaced to maintain optimal engine performance.

4. Timing Belt Replacement: The timing belt is a critical component that synchronizes the engine's camshaft and crankshaft rotation. It should be replaced at the manufacturer's recommended intervals to prevent engine damage from a belt failure.

5. Air and Cabin Filters: The air filter ensures that the air entering the engine is clean, while the cabin filter provides the passengers with clean air inside the vehicle. Replacing these filters can improve performance and the comfort of the vehicle's occupants.

6. Brakes Inspection and Service: This includes checking the brake pads, rotors, and fluid levels. Worn brake components are replaced to ensure the vehicle can stop safely.

7. Suspension and Steering Check: The suspension and steering systems are inspected for wear and tear. Components like shock absorbers and struts are checked for leaks and proper operation.

8. Tires: A thorough inspection of the tires is conducted, including checking the tread depth, tire pressure, and looking for any signs of damage or uneven wear.

9. Battery: The health of the vehicle's battery is checked, and if it's nearing the end of its life, it may be replaced.

10. Exhaust System: The exhaust system is inspected for leaks and proper function, as a damaged exhaust can lead to decreased performance and increased emissions.

11. Drive Belts: These are checked for wear, cracks, and proper tension to ensure they are functioning correctly.

12. Lights and Electrical Systems: All exterior and interior lights are checked to ensure they are working correctly. The vehicle's electrical system, including the charging system and battery, is also inspected.

13. Body and Interior: A general inspection of the vehicle's body and interior is performed to check for any signs of damage or wear that may need attention.

It's worth mentioning that while minor services might include some of these tasks, a major service is more comprehensive and thorough, often performed at longer intervals or higher mileage counts. It's always best to consult the vehicle's owner's manual or a trusted service professional to understand the specific requirements for your vehicle.

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While it varies by make and model, major services generally include: all minor services. the replacement of various filters, fluids and spark plugs. timing belt replacement at the manufacturer's recommended replacement interval.Oct 3, 2011read more >>