The service life of an ignition coil depends on various factors. To prolong its life, car owners should avoid using aging spark plugs and maintain proper engine water temperature. Unlike common transformers, ignition coils work intermittently, converting low voltage to high voltage. They are prone to aging and damage due to their working environment. Generally, spark plugs need replacement every 30,000 kilometers, while ignition coils can last up to 100,000 kilometers if undamaged. Replacing them only when necessary is recommended. Read More »