Adaptions?

[Naylz]

Ok so I’ve been playing with my code reader and when scrolling through its many menus I’ve noticed one that allows you the clear/erase “Adaptions”. So firstly what are they? Is it wise to just clear them if I have no idea what if any there are? I have no fault codes at present so I assume everything is working as it should. Advice greatly appreciated

[Naylz]

googled it. As my z4 recently had issues with the valvetronic and has now had a new actuator/ motor and a new eccentric shaft sensor which has now cleared all fault codes, would I be right in thinking this adaptive thing would have learnt to adapt with the previous valvetronic faults??? And now they are fixed would that apaption (if that's how it works) be redundant, i.e. If I clear adaptions using my reader will it make a difference? ....a good one I hope. OR am I playing with Fire clearing adaptions????

[ph001]

Feel free to clear them. Adaptations basically consist of STFT (short term fuel trims) and LTFT (long term fuel trims). The former are volatile (i.e are reset when you turn your ignition off) the latter are not. Car might run a little lumpy when you reset them for a few miles but will soon sort itself out. Actually can be a good thing to reset them if you change a major component/ sensor.

[MACK]

I'm never really sure if the key/ignition on off sequence for the throttle body test/adaption really actually works. But when I've done it in adaptions with INPA I've definitely noticed the difference so it's worth while.