does anyone know if bipassing(not unplugging) the communications part of a tcu unit will screw up the other other functions of the tcu? i went to 2 bmw dealerships the one that did the bi pass for me said its ok and its been a year now, but the other one says in due time other functions of the tcu unit will screw up like my memory and computerized stuff, i was wondering if neone can confirm this with me? cuz a new tcu unit is expensive.

 

it sure is, 1200 for mine installed, just got it replaced 2 days ago

 

What! That's crazy, I hope it's covered under warranty.

 

mine is a 04 and out of warranty, and i was quoted 1700 cad for it, just wondering if neone can answer my question or if they've had experience with this at all?