Erratic Shifts on Turns

[B4_685]

Very interesting - not sure it matters but I do recall a specific re-learn for the 6HP which I believe doesnt apply to the 8hp - have you tried contacting zf directly?

Was thinking speed sensors when you mentioned it - any chance one could be faulty on the rear wheels causing a sensed wheel spin and subsequent brake application? Dunno if unplugging one or both sensors could be an option to test...

Edit: I dont know specifically about BMW’s but other manufacturers still have some active diff input even though you switch the traction/stability programs off - maybe unplug the abs pump? That’ll obviously upset the dme a bit but I dont know how else other than unplugging a wss to disable the input (yaw sensor in jeeps also works)

2012 E70 N63 50i