I haven't found a thread that combines all these issues; perhaps others have similar collected problems.
Over eighteen months ago both my key fobs stopped working. I didn't try to fix the issue; having been locked out once with the 'engine disabled' message; I'm happy the immobiliser and alarm circuitry are dormant. Only a specific, agressively self-hating flagellant would attempt to steal a P38. I think it's because, as the fob or receiver system failed when it was unlocked, I am using the car permanently in the non-immobilised, non-alarmed state. No problem so far, except for two, possibly-related issues:
1) I can lock the car with just the blade from outside and then start the car through the open window with the same blade so it's not immobilised. I'm fine with that, but shouldn't locking the car with the key immobilise the car and set the alarm? That's what the manual says. Something must have stopped working. What I don't want to do is start poking around and inadvertently 'fix' this issue, thus re-activating the immobiliser with all the potential problems that may create. The question is then: how did this happen and how can I retain this status?
2) I have the random central locking isue: out of nowhere the central locking opens and closes, usually reverting to a working state. I can open the driver's door and start the car but not open the other doors or open the hatch; the doors won't open from either inside or outside the car; I think they're super-locked. The question is then what causes the random central locking behaviour and is it a good idea to snip the orange/pink wires inside the door to disable the super-locking? There are posts on this under 'disable super lock'. Searches seem to indicate this is one of the door locks but as I said in (1) I don't want to fix that and find it re-activates the immobiliser. Once I've found the issue with the random locking I plan to fit an after-market remote central locking kit that just activates the central locking via an actuator solenoid.
Thanks to all in advance!