Renault Clio RSi Mk1
I have had no end of problems with my coolant system since having the coolant changed 
The latest one being the engine oil cooler....
It has rusted through the inlet and outlet pipes
I have by-passed it for now, but was wondering how important it is, as a local Renault guy has said he has seen loads by-passed ??????
They are £100+ from Renault

The cooler is between the oil filter and the block.
The pic shows the pipe by-passing the cooler.
The latest one being the engine oil cooler....
It has rusted through the inlet and outlet pipes
I have by-passed it for now, but was wondering how important it is, as a local Renault guy has said he has seen loads by-passed ??????
They are £100+ from Renault
The cooler is between the oil filter and the block.
The pic shows the pipe by-passing the cooler.