cg7 0 Report post Posted January 17, 2023 Hi, just had a ZF 8HP45 transmission fail, and a low mileage diesel replacement is available. Is this doable, and if so, does it involve any more coding or work, other than swapping torque converters? Quote Share this post Link to post Share on other sites
Palazzo 427 Report post Posted January 17, 2023 I believe (and could be entirely wrong) that the gearbox either needs to be coded to new or virgin status to be able to be coded to your car. Or the mechatronics unit has to be swapped over (assuming this isn’t the part that failed). Have you checked the gear ratios are the same? Wouldn’t surprise me to find they were completely different for diesel/petrol engine power/torque curves. Quote Share this post Link to post Share on other sites
promo 93 Report post Posted January 18, 2023 if you need help in resetting ISN key on Mechatronics I can do for you. Once cleared it will automatically sync from BDC/FEM module. If you do not reset the ISN key you will not have any gears Quote Share this post Link to post Share on other sites
