my ride E46 318i 99 got a crack water tank ..change t water tank but t temp meter won't go down even engine not hot.when i turn on t key t meter go straight up to t red dot.send t car again for check-up after n change t whole meters few times n its still not functioningleft t car at t workshop and until today WAAAA my mechanic called that t computer box burn..will cost nearly 2k to repair..still wondering why my computer box burn becouse of t meter...ANy sifus Any ideA..thinking to smack down that old mechanic..huhu