Oil cooler reseal. Tips?

[Rx7145]

Well I disturbed my Oil cooler when installing a coolant heater and now it’s leaking. I have the O-Rings and plan on digging into it this week. Any tips. Everyone says not to mess with it but I don’t have that option as it’s leaking pretty bad.

06 Jetta

Thanks.

 

[Jbwoo]

Engine oil cooler or DSG oil cooler? Either way, it’s not hard.

 

[Rx7145]

Engine oil. I seems like it’s pretty straightforward. I couldn’t find a YouTube video on it, witch is my normal thing to do before a repair I haven’t done before.