my Skoda Octavia NFL (2020-Present) makes a rattling noise when idling

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, mechanic's stethoscope, safety goggles, gloves.
• Ensure the vehicle is parked on a level surface, engage the parking brake, and disconnect the battery for safety.

2. Engine Mount Replacement

1. Remove Engine Cover: If applicable, remove the engine cover by unscrewing the bolts holding it in place.
2. Lift Vehicle: Use a jack and jack stands to safely lift the vehicle.
3. Support the Engine: Place a jack with a block of wood under the oil pan to support the engine.
4. Remove Engine Mount Bolts: Use a socket set to remove the bolts securing the engine mount to the engine and the chassis. Keep the bolts for reuse if they are not damaged.
5. Replace Engine Mount: Position the new engine mount in place and secure it with the bolts. Torque the bolts to the manufacturer’s specifications (typically between 40-60 Nm, but refer to service manual for exact values).
6. Lower Vehicle: Carefully lower the vehicle back to the ground.

3. Inspect and Replace Belts/Pulleys (if necessary)

1. Check Serpentine Belt: Inspect the serpentine belt for signs of cracking or wear. If damaged, remove it by releasing tension on the tensioner.
2. Replace Belt: Install a new serpentine belt if needed, following the routing diagram typically found on a sticker under the hood.
3. Inspect Pulleys: Spin each pulley to check for smooth operation. Replace any pulleys that exhibit roughness or wobbling.