Here are the best professional car service steps used by top automobile service centers 🚗 1. Vehicle Reception & Job Card Customer complaint noted Previous service history checked Job card created Vehicle inspection (scratches, fuel level, km noted) 2. Computerized Diagnosis OBD scanner check Error codes reading Sensor & ECU health check 3. Engine Inspection Engine oil level & quality Coolant Brake fluid Power steering fluid Transmission oil 4. Air & Fuel System Check Air filter cleaning/replacement Fuel filter check Throttle body cleaning Injector inspection 5. Brake System Service Brake pads & discs Brake fluid top-up Handbrake adjustment 6. Suspension & Steering Shock absorbers Ball joints Bushes Wheel alignment & balancing 7. Electrical System Battery health Alternator Lights Fuses Horn & wipers 8. Tyre & Wheel Care Tyre pressure Tread depth Wheel balancing Rotation 9. Engine Tuning & Road Test Engine tuning Clutch & gear operation AC performance Road test 10. Washing & Interior Cleaning Foam wash Underbody wash Dashboard polish Vacuum cleaning 11. Final Quality Check Re-inspection No warning lights Customer approval 12. Delivery & Service Report Work done explained Invoice generated Next service reminder