97 sl320 I do have an estimate.The issue is I have a flip metal key.Id really like to replace the lock and tumbler and switch assembly.Is that possible is what your saying the assembly.c/S both keys are not locking.c/locking is inoperative with Remote only works inside vehicle.NO DTC 'S relegated to central locking.Sds displayed error 15c key in the ignition switch is malfunctioning.Checked switch status found that steering lock does not disengage.Ie does not lock wheel when key is out.Vehicle still thinks the key is in the ignition.Price to replace steering colum,+ignition lock+tumbler $2225