Egr cooler leaking externally?

[Nilao]

Started reassembly today. I used a real thin layer of anaerobic sealant on the mating surfaces to try to seal up the small corrosion pits in the face of the oil cooler housing. Letting it cure overnight. The only thing I have left is to hang the turbo and refill the coolant system. I have a new oil and coolant filter and am going to change my own oil while I'm at it. It's due soon.