[atomic335]

Originally Posted by NISFAN

Does anyone know if M235iR (racing) gearbox data can be uploaded into x40i zf8?

There were two different boxes used with the M235i Racing. The first year of the M235i Racing Cup (2014) featured the standard ZF 8HP45 and had updated software only. The 2016> M235i Racing featured a 8P45R and this was a somewhat different box. The most important modification to the 8P45R compared to the standard volume production 8HP45 is that the 8P45R transmission does not feature a hydraulic torque converter or the associated lock-up clutch. The pulling away or drive-off process is implemented by internal shift elements with a vibration damper upstream from the gearbox input to prevent damage through engine oscillations. The gear ratio spacing is also closer and the rev drops between gears have been reduced. Normally only the first six gears of the 8HP45 gearbox were used when racing, but in the new 8P45R all eight gears are spaced for optimal use.

With this in mind if you were to look at reflashing the box of your production car you'll need to ensure the software was for the earlier 2014 8HP45 gearboxes and not the later 8P45R.


I'm hoping to get ZF to agree to sell me a 8P45R for a project I'm working, if they're no keen I'll be using their new Anti-Stall Clutch connected to a Samsonas sequential and XAP e-Shift...either way no more clutch peddle.

[pcp1234]

1.Make a copy of VO, SVT and ECU
2.Add to VO:
920, 9XA
Production date 1211 or higher
Typeschlussel XA71 for F10 or 3E51 for F30
Factory ilevel 11-09-507 or higher
3. Follow "How to change FA" guide to modify and upload new FA
4.Follow "ECU flashing" guide and flash EGS
5.Then in TAL-PROCESSING:
Uncheck all
Check just EGS procedures - BLFLASH, SWDEPLOY, CDDEPLOY