97sl320 I figured it out.I replaced the tumbler and switch no help.Realised the lock was not working as discussed lubercated lock Assembly spring the white sliding piece and now the steering locks and the alarm works.If one has to replace the lock assembly the steering wheel needs to come off and that's the only way I can see it being done.The pin that goes into the clam half on the colum is against the wheel.No way to get to the pin to remove the wheel must come off.Hopefully I won't have to replace it.