Does anyone have instructions on how to disassemble into parts the ECU (engine control unit) wiring harness connector for Mercedes-Benz E200K 211.241 ?

Having engine oil in connections.

ECU box:
A2710106144 271956 3 0827145 5

423 807 F211 M019
A 271 010 61 44
12.09.2006
M1.8 (gasoline)