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Thread: Auto to manual conversion?

  1. #1
    Join Date
    Jun 2011
    My Cars
    Too Many

    Auto to manual conversion?

    I have a 128i (n52) with 90k miles and torque converter vibration. Warranty may not cover it and give me back the $1,800 I paid. I owe too much $ on this car and selling or trading is not feasible. I have done manual conversions on e36s but I changed out the engine harness in order to delete EWS and the transmission computer. I can get all the conversion parts from a manual 328 or 330 at local junkyard but I am not familiar with the computers used on anything newer than an e46. Is there a way to convert to manual without changing out the harness? Can the DME be flashed to ignore the errors associated with this swap? This is Florida and there is no inspections or emissions testing and I dont care about error lights on dash, as long as it functions properly.

    I guess for $1,800 I could just fix the torque converter but what's the challenge/fun in that? It's not my daily driver, but the car that gets me around when I dont feel like using my truck
    Current lineup: 99 BMW M3vert (project) , 05 Mazda RX-8, 04 Mercedes CLK320, 03 Chevy Express 1500 (work van).
    Previous rides: 07 Mazda RX-8, 92 BMW 325iNV, 94 BMW 325iC, 94 BMW 325i S50 M3 clone, 84 Mitsubishi Cordia Turbo, 84 Mazda B2000 lowrider, 88 Toyota Tercel, 88 Honda Accord, 93 BMW 318i, 95 Nissan Altima, 89 Toyota Camry, 95 Mitsubishi Eclipse GS-T, 93 BMW 318is, 84 Toyota Tercel, 96 Mitsubishi Eclipse GS-T, 97 BMW 528i 1JZ swap, 94 Acura Integra 4dr, 88 Toyota Corolla Wagon, 97 VW Jetta GLS, 86 Toyota Corolla AE86 4A-GZE supercharged engine swap, 94 Lexus LS400, 95 Isuzu NPR Turbo, 01 Suzuki TL1000R, 98 Honda CBR600F3, 99 Yamaha R6 and countless other dirt bikes and toys

  2. #2
    Join Date
    Jan 2007
    Atlanta, GA
    My Cars
    2019 Silverado 2500
    I would just fix it if it was me. The GM trannies on those cars are very reliable (at least I'm assuming it's the GM tranny. It was definitely the GM tranny used in the 3 series with N52).

    The hardest part will be sourcing the parts to make the swap happen, and then whatever subsequent coding is needed to tell the DME that the EGS is gone, and not to look for it.
    ASE and BMW Master Certified Technician

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