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Hi ! Story goes that the car doors will not lock when pressing the lock button on the key remote. I do hear the locking mechanisms closing in the 2 doors and the trunk panel, but they all unlock immediately after. Pressing the unlock does de-activate the immobiliser so i can still drive the car. I am essentially looking for ideas as my local Smart mechanic has already spent many hours and replaced a few components without success to resolve this issue. I read most if not all threads on the topic in this forum, but did not get any luck so far. The Fusebox/SAM was replaced a few days ago (with a second-hand unit, in an attempt to resolve the issue) including reprogramming my 2 key/remotes. The passenger-side door was replaced (by a used one) about 6 months ago and the driver-side latch mechanism was also replaced a few days ago. The trunk panel was dismantled, all wires are sound. All doors and trunk latches work well. All doors close well and tight (no slack, well adjusted). The connector at the base of the battery was also replaced a few days ago (was seized). I doubt there is any link to it, but the front suspension coils were replaced last week (reason it went into the shop) so the front bumper panel was removed / re-installed. Any electrical wires / contacts to should check in that area (aside from the door connectors) ? The trunk window struts were also replaced last week. I am no car expert and would dearly need some help Many thanks and happy holidays ! Alacazam.