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2007 e90 320d 167k km 4f8d warning automatic transmission on my car. but but there is no gear shift gap or slippage in the car. and this way I have received this warning 4 or 5 times in the last 1 year. the mechanic says the transmission needs to be renewed, but it didn't seem convincing to me. Because as I said, there is no problem in shifting any gear in my car. Anyone know about the software update? or is there someone to help in general .. Thanks...
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