How often should the spark plugs of an Audi A6L be replaced?

[McJosie]

The spark plugs of an Audi A6L should be replaced every 20,000 kilometers. If the vehicle is under warranty, strictly follow the maintenance manual for replacement; otherwise, the manufacturer may refuse warranty claims if engine issues arise. For vehicles out of warranty, spark plugs generally need replacement every 40,000 to 50,000 kilometers. The Audi A6L has body dimensions of 5036mm in length, 1874mm in width, and 1466mm in height, with a wheelbase of 3012mm. All models of the Audi A6L feature a dual exhaust pipe design on both sides, which is cleverly integrated into the overall bumper design, enhancing the visual effects of 'wide and flat' as well as 'stable and solid'.