Transmission problem, any ideas ???

[bcredliner]

Originally Posted by titofre

Hello. I have the same problem.
upshift 1-2 gives a blow and stop at traffic lights slams.
The car has 58000 km, someone can tell me if it has been fixed.
The first morning shift 1-2 is smooth.
thanks

Same symptoms are not always the same problem. My first step is always to have a qualified BMW tech check for codes and diagnose the problem, if I don't have the software to do so myself. Cheap investment when compared to trying 'stuff' to see if anything fixes the issue.

That said, prior to troubleshooting or diagnostics, if you can do a reset (as mentioned) it is worthwhile to try as there is no cost. If there is a software update associated with your problem that is something else to do as it doesn't take long and is not expensive.

There are strong feelings on both sides of changing the transmission fluid and filter as fixes. I am in the camp that changes the lifetime fluid every 50,000 miles. From the posts I have read here, changing the fluid after you have a problem, my guessing, has a 20-30% success rate.

I don't know your budget or how long you have had this problem but unusual shifting characteristics, in any gear change up or down regardless of the RPM or if it is under light or heavy acceleration is not something to leave unaddressed. You need to know if this is something that is going to cause a more costly repair.

There have been some posts where the problem has been lessened or is not present when the transmission is in sport mode. I would try that to see if the issue changes or is not present in that mode. If it does help, that would be something to lessen the irritation and perhaps keep the problem from getting worse until you can get diagnostics done.