I have been working to eliminate my engine oil leaks. ('82 300D) I have replaced the front crankshaft seal, IP gasket, oil filter housing gaskets, and oil cooler lines.

But I still have engine oil dripping off the a/c compressor. Can't tell exactly where it originates. It's not the vacuum pump gasket. The worst area seems to be near the elongated compressor adjusting slot next to the upper oil pan. Just wondering if anyone has any insight as to what might be causing the leak.