Vehicles using CAJA engine list:

Engine CAJA in the Audi A6 3.0 TFSI (2008–2011) commonly faces issues like carbon buildup on intake valves, timing chain tensioner wear, and oil consumption. Diagnose carbon buildup via rough idle or misfires; a walnut blasting cleaning can restore performance. Timing chain tensioner noise or rattling indicates wear—replace tensioners promptly to avoid severe engine damage. Monitor oil levels regularly to catch excessive consumption early; use high-quality synthetic oil and change it on schedule to prevent sludge. Preventive maintenance includes regular intake cleaning, timely oil changes, and addressing unusual noises immediately to ensure engine longevity and reliability.