Thank you for the reply.


My car is stamped as a 11th month 2006 build. I have heard of the issue of remapping if I fit a EGR bypass, but to be honest I cannot see any way that it would cause any engine light warnings. There is only a vacuum line attached.


As to the oil catch can, I have seen that the hoses and intercooler have an amount of oil in them and when the car is tilted to one side with the inter cooler hose off it drains out. All joints are saturated in oil dribble an the only assumption I can come up with is this is coming through the turbo system from the engine.


I therefore thought that after being advised an EGR bypass was not advisable, maybe a Catch Can would help reduce the amount of oil passing into the inter-cooler and back through the EGR.


This is why I asked, as I have been gradually been replacing hoses and vacuum lines.


I thank you for your reply, I hope you can expand upon it or my reply. Yet as my follow up post implied, it may be more to this than just the engine.


Cheers, Jeff

__________________
I own a BMW E53...Always questions, unfortunately I can rarely supply solutions. I will try to give results to my problems if they are fixed and how it was done.