Replacing spark plugs
(only cars with petrol engines)
Spark plugs should be replaced at the intervals specified in section 5, or when the engine performance decreases. Signs of deteriorating spark plug performance are misfiring in cylinders under load, increased fuel consumption, poor throttle response, etc. When replacing, use only spark plugs recommended by Hyundai. Use of other types of spark plugs may result in poor engine performance, radio interference and engine damage.
Note:
- To replace the spark plugs, use only recommended Hyundai Genuine Parts. It is recommended that the 2.7L engine spark plugs be replaced by an authorized Hyundai dealer.
- Cleaning of platinum and iridium electrodes and adjustment of the gap between them is prohibited.
Recommended Spark Plugs
Type | Unleaded gasoline | Leaded gasoline |
CHAMPION | RC10YC4 | RC10YC |
NGK | BKR5ES-11 | BKR5ES |
Replacing spark plugs
Spark plug replacement is easier when the engine is cold. In order not to mix up the ignition wires, replace the candles only one by one.
1. Remove the center part of the engine cover (2.0L engines).
2. Use a clean cloth to remove any dirt around the spark plugs so that it does not get into the cylinders when removing the spark plugs.
3. Disconnect the spark plug wire by pulling on its insulating lug, but not on the wire itself, because. this can damage its carbon conductive core.
Warning: It is recommended to change the spark plugs when the engine is cold or cold. A hot engine can be burned from wire ends, spark plugs, or hot parts of the engine.
4. When unscrewing the candles, carefully put the key head on them so as not to damage the ceramic insulator.
5. Remove the spark plug by turning the wrench counterclockwise.
6. When wrapping candles, carefully put the key head on them so as not to damage the ceramic insulator.
Note: Plugs must be tight. Overtightening can damage the threads of the sockets in the aluminum cylinder head. Insufficient tightening can cause the spark plugs to overheat and damage the engine.
7. Attach the wire to the candle by putting a tip on it and pressing it. Check that the tip is secure.