E36 m3 cab flat battery.i have now fitted a new 1 and my alarm will not work and the car is immobilised.the key fob is black with 1 button in the centre and the car is a 1995 can you help.
BMW E36 316I BUILD DATE 21-5-1994 ALARM RESET AFTER BATTERY CHANGE
Alarm was going off intermittently after battery replacement.
This is how I fixed it after much research. Hope this helps someone.
Open all doors, bonnet and boot lid.
Put ignition key to position one in ignition (First click)
Disconnect Battery at negative earth lead
Short positive battery lead to earth for 15 minutes to discharge all capacitors in ECU etc.
Remove shorting lead from battery
Reconnect battery at earth lead with key still in ignition at position one for 5 minutes.
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