1. Check Engine Oil: Ensure the engine oil level is correct and the oil is clean. Replace the oil and filter if they are old or dirty.
2. Inspect Spark Plugs: Remove and inspect the spark plugs for wear or carbon buildup. Replace them if necessary.
3. Examine Air Filter: Check the air filter for dirt and debris. Replace it if it's clogged.
4. Test the Fuel System: Ensure the fuel filter is clean and the fuel pump is functioning properly. Replace any faulty components.
5. Run Diagnostics: Use a diagnostic tool to check for error codes and address any issues indicated.

Our Workshop Service & Repair Manual provides detailed instructions for diagnosing and fixing engine issues, helping you keep your Sonata running smoothly.

1. Check Transmission Fluid: Verify that the transmission fluid is at the proper level and in good condition. Add or replace fluid as needed.
2. Inspect for Leaks: Look for signs of fluid leaks under the vehicle and repair any damaged seals or gaskets.
3. Adjust Transmission Linkage: Ensure the transmission linkage is properly adjusted for smooth shifting.
4. Replace the Filter: A clogged transmission filter can cause issues. Replace the filter according to the manual's instructions.
5. Test Drive: After making adjustments, test drive the vehicle to ensure the transmission operates smoothly.

The Workshop Service & Repair Manual includes step-by-step procedures for transmission maintenance and repairs, helping you address issues effectively.

1. Check the Battery: Ensure the battery is fully charged and the terminals are clean and secure.
2. Inspect Fuses: Look for blown fuses in the fuse box and replace them with the correct amperage.
3. Examine Wiring: Check for loose, corroded, or damaged wiring connections, especially around critical components like the alternator.
4. Test Electrical Components: Use a multimeter to test components like the alternator and starter. Replace any faulty parts.
5. Consult Wiring Diagrams: Refer to the manual’s wiring diagrams for troubleshooting complex electrical issues.

Our manual offers comprehensive guidance on diagnosing and fixing electrical problems, ensuring your Sonata's electrical systems remain reliable.

1. Inspect Suspension Components: Check for wear or damage in the shocks, struts, and suspension bushings.
2. Check Alignment: Ensure the wheel alignment is correct. Misalignment can cause uneven tire wear and handling issues.
3. Examine Ball Joints and Control Arms: Look for play or wear in ball joints and control arms. Replace any worn parts.
4. Test Ride Quality: Pay attention to ride quality and handling. Address any issues with noise or excessive bouncing.
5. Replace Worn Parts: Follow the manual’s guidelines for replacing worn suspension components.

Our Workshop Service & Repair Manual provides detailed procedures for inspecting and repairing suspension issues, helping you maintain a smooth ride.

1. Check Brake Fluid Levels: Ensure the brake fluid is at the correct level. Top up or replace it if necessary.
2. Inspect Brake Pads and Discs: Check the condition of brake pads and discs. Replace any worn or damaged components.
3. Bleed the Brakes: If the brake pedal feels soft or spongy, bleed the brake lines to remove air.
4. Examine Brake Lines: Look for leaks or damage in the brake lines and repair or replace them as needed.
5. Test Braking Performance: After repairs, test the brakes to ensure they are functioning correctly.

Our manual provides comprehensive instructions for brake system maintenance and repairs, ensuring your Sonata’s brakes are safe and effective.