i got my rangi at a bargain price just recently because it had a bad cracnkshaft, so i replaced the engine with a 5 series bmw one it fitted no problem just the sump and external stuff to change and its in and running sweet. and now the let the problems begin first the windows pack up durring the engine swap,now the glow plugs have packed up as well and yep you guessed it now the hvac is playing up. having read through some posts on here i have a new relay/timer for the g plugs and a switch panel comeing for the windows but can i sort the heater is the question the symtoms are no display working but its been like that for ages not to worried but now the blowers only work when they feel like it with no pattern any ideas before i hav to spend more money i dont have.