my w 126, i did 2 of them, one using a zip grinder, did cut a hole on the dash padding, 2nd time use a zaw saw, which is much more refined able to left the dash alone.
I did saw /cut the pod goes into the steering lock dead bolt. 2nd time i cut distal to the clamp so a new pod & tumbler can be slide on again.
If i can find the small bearing which can easily be pushed in when the dead bolt is slided off position.
U can drill the small ball then slide the pod out.

merc are worse to break in anyways.

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