coolant leak

Oil Cooler Plastic Pipe In A8 D3

All A8 4.2L engine have plastic pipe for their oil coolers, and these plastic pipe get brittle and break over time, especially if the engine is running hot or over heat too many times. I’d replaced both 4.2L 32V and 4.2L 40V on the D2, but not on the D3, it’s a little harder to