BKR5EK 7956 双铱金火花塞，适配大众奥迪奔驰宝马

For numerous post-2000 models from Volkswagen, Audi, Mercedes, BMW, etc., upgrade with BKR5EK 7956 double iridium spark plugs. They mount on the engine cylinder head and directly ignite the air-fuel mixture for smooth engine operation and efficient combustion. OEM number BKR5EK 6101 7956; widely compatible. Installation difficulty medium; estimated labor 0.5–1 hour, with slight variation by model. If you experience starting difficulties, rough idle, weak acceleration, or noticeably higher fuel consumption, electrode wear or heavy carbon buildup is likely; replace promptly.