I have just put the key (electronics and blade) to my wife's 1.9tdi into a new casing. The car can be locked and unlocked as usual but the immobiliser no longer 'unlocks' and so the engine only runs for a second or so. The glow plug light flashes in unison with the car security light. As this is the only key to the car, I seem to be beached! Any help much appreciated .

Did you move the transponder chip as well? Little grain of rice thing, separate from the rest of the circuitry.

Sent from my Nexus 4 using Tapatalk