Audi A4 Quattro
Report: Use correct oil/filter to prevent sludge accumulation
Audi A4 Quattro Problem
Engine Affected: 1.8L 4 Cylinder Turbo
To avoid sludge accumulation inside the engine, our technicians recommend using the proper synthetic oil with the appropriate oil filter.
Visitor, 2002 Audi A4 Quattro, 1.8L 4 Cylinder Turbo, 70,000 mi
Dealers were using the wrong oil for warrantied 50k maintenance. Audi covered sludge issue and burned turbo.