Audi A4 Select the Engine of the Vehicle: 1999   4 Cylinders, 1.8L liter   6 Cylinders, 2.8L liter 1998   4 Cylinders, 1.8L liter   6 Cylinders, 2.8L liter 1997   4 Cylinders, 1.8L liter   6 Cylinders, 2.8L liter 1996   6 Cylinders, 2.8L liter < < BACK