1992 BMW 735il transmission problems
1 have a 1992 bmw 735il. I had the second transmission go out awhile back. I was able to get a like new 89 635csi transmission. They both are 4HP22 EH . The car will go but very slow, it doesn't wont to shift. I think the big mistake I made is that I didn't get the TCU for the 635csi. The mechanic said that when the other transmission and torque converter went out it could have damaged the 735il TCU. Does anyone know how I can get the best TCU that will work for it? Any hope?