Which cars use Bosch R6 spark plugs?

[LeRicardo]

Bosch-produced spark plugs are generally used in German cars such as Volkswagen, Mercedes-Benz, and Audi. Functions of Bosch spark plugs: As high-grade spark plugs for ordinary engines, Bosch spark plugs feature a fine iridium center electrode, achieving superior ignition performance and significantly improving sensitivity. Additionally, the electrode discharge part uses platinum, resulting in a longer service life than platinum spark plugs. Bosch spark plugs ensure stable sparking, enhancing engine operation stability and smoothness. Due to the hardness of iridium, they are more durable than ordinary spark plugs. Spark plug lifespan: The service life of spark plugs can exceed 80,000 kilometers, but their condition should be checked during every major maintenance. The most common issue with spark plugs during use is carbon buildup, which can be cleaned with carburetor cleaner before reinstalling them.