E36 alarm fob initialising after changing battery

[kdevitt]

Thanks lads. Does this explain the spare key not starting the car all the time too? Or is that another problem?

That sounds more like a transponder issue - not sure you could activate / deactivate keys on an E36

[FunkySeeFunkyDoo]

When you say spare I’m guessing it’s an older key, possibly the original? Wouldn’t worry it would be as Ken says a fault with the keys transponder


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[JohnH]

Does that mean a new key?

[kdevitt]

Does that mean a new key?

Might be possible to re-code it. I had a load of spare transponders, and software, for doing VW keys - I'm guessing similar exists for doing BMW keys. Some of the key cutting places might be able to do it.