Will taking this out or putting in another CDV valve void the warranty if manual trans problems occur?
If the car has problems and is on the side of the road needing a tow to BMW, there will be no time to put the original one back in.
Without this mod I have heard the manual is really bad in most opinions. I guess its a must do, even though I didn't want to mod anything. Warranty is very important to me, but a nasty manual is worse I guess?