How to replace the key shell of the Opel Astra J 2009-2016

In order to replace the key shell of the Opel Astra you must first remove the part of the shell where the key battery is located by pulling slightly upwards. Once the affected part of the shell has been removed, remove the battery from the key with the aid of a not too large screwdriver; to remove the battery it is necessary to move the two tabs upwards with the aid of the screwdriver. At this point you have to completely open the shell to remove the circuit inside it, to do this you have to press outwards on the lower part of the key blade, but you have to be careful not to let the springs positioned inside fall. To remove the circuit from the old shell, simply pull upwards slightly with the help of a screwdriver. Once the circuit has been inserted into the new shell, it will be necessary to replace the key blade to put it in the new shell. To do this you will need to use a nail to insert into the block of the blade and a hammer to hammer and be able to remove the block. Once the blade blocks have been removed, replace the blade by inserting the old one in the block of the new shell, taking care to insert it in the right direction, block it by hammering it twice and then inserting the block. At this point, mount everything in the new shell by loading the spring of the key blade. Once you have made sure that you have correctly loaded the key blade after having assembled the circuit and the battery, close the shell and the operation will be complete.