control system not turning on [Archive] - Bimmerfest - BMW Forums

: control system not turning on

07-31-2012, 09:59 AM
i already check the fuse for the radio and it good. any one have an idea what could be wrong why it wont turn on

07-31-2012, 05:46 PM
Good place to start is under the spare tire. Look for water. If anything on the fiber optic system goes down the whole system goes down. Common problem is bad tcu.

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07-31-2012, 10:25 PM
It did get wet with downey is there anyway that it will work if its completly dry or do i have to replace the tcu?