Hoe simpel het contactslot vervangen.
Is misschien wel de naam belangrijk topic waard Jeroen?
Ik denk dat er wel wat e21´rs rondrijden met 2 verschillende sleutels.
How to easily remove an ignition tumbler without a working key or having to remove the ignition switch .
1. Disconnect the battery.
2. Remove the lower dash panel, lower steering column cover, and the ignition bezel.
3. Locate the hump protruding from the casing around the ignition switch (see photo).
4. On the hump you will notice it looks as if it has already been drilled an 1/8 of an inch, drill it all of the way through the top of the switch(not the the steering column) with a 3/16 drill bit (whatever you feel will do the job).
5. Now you will need a tool the slide into the drilled hole and push the tumbler spring towards the front of the car. I used an old bicycle spoke with the curved end cut off and it worked very well (see photo)
6. Turn the key if you have one and pull the ignition out while you are compressing the spring.
7. Clean out and grease the interior of the ignition switch.
8. A little more on the tumbler can't hurt.
9. Slide the new tumbler into the ignition switch.
10. Replace ignition bezel and lower panels (possibly some paint?).
BRON: https://www.bimmerforums.com/forum/show ... on-Tumbler
