Need Help Please. I have a a 1997 RR P38 2.5 BMW Engine etc etc with no reverse gear. Been on and googled this problem and read some interesting notes about low voltage etc etc. Had the car in the garage were the starter motor,Alternater, and the battery all tested fine but I still get Gearbox Fault and Alternator fault no reverse gear car seems to be in limp mode can't drive over 45mph and my speedo needle revs upto 4000rpm but i'm not going anywhere fast. And then to put the icing on the top my heaters have gone off aswell....So loads of luck but unforunatley all bad. some help would go a very long way...Many Thanks Paul 1 Sick As F**k P38 Owner....