Hello All, after cleaning the throttle body in my 89 420sel.. it has developed a High idle symptom.. after some research was determined that the ICV should most likely be cleaned.. The two hoses connected to the ICV are very hard and brittle.. so before removing I went ahead and ordered brand new hoses... is there any other procedure I should be aware of in the removal of the ICV other than the connector, 1 screw/clap and connection to the 2 hoses? From other threads I have done some homework on cleaning the ICV, but in case anyone has anything to add It would be much appreciated... Thanks all so much in advance!!