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Discussion Starter #1
2006 e60 m5
Sporadic rough idle 7-1100
Warm or cold doesn't matter
Does not sputter or die but engine surges (annoying at the most right now)

Shop says the idle control valves are going bad but not throwing any faults but numbers are reading low.
Recommended to replace them if it gets worse.

Looks like this is a common issue with this part. Is there a way to clean them or is this a hard failure on the internal part?
Or do I have to just buy new ones? Thinking about taking them off and hitting it with carb cleaner and putting new O rings on em.
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