Heroes under the hood: With more then 120 years of ignition expertise, Bosch spark plugs have original equipment quality and are trusted by many well-known manufacturers worldwide Compatibility matters: Use the parts' search function at the top of this page to find the correct spark plug for your vehicle, the engine requirements define the spark plug design needed for each car Tech specs: 4 spark plugs with 4 ground electrodes - Electrode gap: 1.1 mm - Thread length and size: 19 mm, 14 mm - Spark position: 5 mm - Prescribed tightening torque: 28 Nm Highly reliable: Outstanding protection against carbon fouling thanks to the advanced surface air-gap technology Easy to replace: No adjustment necessary as the electrode gap is pre-set - It's advised not to lubricate the thread and to use a torque wrench - Refer to the instruction manual for guidance