Msd80 to Msd81 DME upgrade problem

[haitam]

Hi everyone

I’ve got 30bb and 30ba code tried to change mosfet with no success so i choosed to upgrade my DME to an MSD81.
The thing is the MSD81 is from 535i xdrive and my 135i is RWD.

I tried to download every sp daten i could’ve find to flash the dme with a new zb number compatible with my rwd but i couldn’t find anyone with msd81 files and even in msd80 i couldn’t find compatible msd81 zb number

Any help please trying to make the car safe to drive cuz when i pull hard on it i got dtc flashing and the car start kicking sideways even shifting gears is sometimes a miss

[Afam28]

Originally Posted by haitam

Hi everyone

I’ve got 30bb and 30ba code tried to change mosfet with no success so i choosed to upgrade my DME to an MSD81.
The thing is the MSD81 is from 535i xdrive and my 135i is RWD.

I tried to download every sp daten i could’ve find to flash the dme with a new zb number compatible with my rwd but i couldn’t find anyone with msd81 files and even in msd80 i couldn’t find compatible msd81 zb number

Any help please trying to make the car safe to drive cuz when i pull hard on it i got dtc flashing and the car start kicking sideways even shifting gears is sometimes a miss

Ship your old DME to a shop(that works on MSD80’s) that replaces mosfets…

Or…

Ship your old MSD80 and 81 with keys and CAS modules to a shop that specializes in writing old MSD80’s to MSD81’s…

[eastsidaz]

Originally Posted by Afam28

Ship your old DME to a shop(that works on MSD80’s) that replaces mosfets…

Or…

Ship your old MSD80 and 81 with keys and CAS modules to a shop that specializes in writing old MSD80’s to MSD81’s…

Sounds like the swap is already done. Car starts so its completed ISN numbers written etc.

Problem is finding the correct zusb which they wont help with.

haitam Try FindECU app (DME/DDE SA option helper) could help you find the correct one IJE0S. Find a vin number from newer one with msd81 which should help

[haitam]

eastsidaz The thing is i can’t find the correct zb number for msd81 on any sp daten i downloaded v68,69,70,71,73 they all support msd80 but not the 81