How To Change The Oil Cooler on a MK4 Jetta 2.0

Doing some work on the 2.0 Jetta MK4. I am changing the oil filter as well as the Oil Cooler in this particular Video. I can't wait to get her back to 100% or as close as possible

[@Lupillo131986]

Hi... Can you tell me if having a bad oil cooler will cause the engine to lose power? for example if i am driving and i accelerate it feels like it's misfiring, but it's not because I don't get any codes that it is misfiring. I did find oil in my coolant reservoir. The dipstick and engine don't have any coolant. Just did an oil change. Thanks!
I have changed spark plugs, coils, airflow sensor.

[@curbsidemechanic3229]

Hello. I dont believe that the oil cooler will cause you to lose power. It may shorten the life of your oil. However, I am concerned about the oil in your coolant tank. Your head gasket may be going bad on you. What does the exhaust look like?

[@Lupillo131986]

@@curbsidemechanic3229 thanks for the reply the exhaust is clear no smoke of any kind...

[@Lupillo131986]

Also I can hear an exhaust leak not sure if it's from the manifold do believe that could be it?

[@curbsidemechanic3229]

@@Lupillo131986 With out hearing the vehicle I can't say for sure. If your car is older it is possible that the flex pipe may have cracked and with the oil in your coolant the oil cooler may have cracked as well.
I would recommend getting both of these issues checked out. It's like a tooth ache. If you can catch it early it can be an easy fix but if you wait it will bring you more pain and cost more to resolve the issue.
Good Luck