It is EXACTLY what I mean, water may have intruded into the Central Locking Pump/Module. Do a search, you'll find many posts/advice. In a nutshell, to check, you have to remove the lower right trim and rear (dark grey?) trim panel to remove the right side foam piece under the carpet in the rear. Once you get that out, it will be easy to see if you have/had water down there. If its all dried up and you cannot tell, you will have to remove/open the foam covered module lower right cavity. Check that module for external/internal water damage and go from there. There is a number of posts linking this module to light/lock/alarm/problems, it may not be the reason for all the problems but I would eliminate this 'common' problem first. If I remember correctly, the RCM issue doesn't effect the lights/locks/alarm, it does effect the starting/running issues. So, eliminate this first (its a free check, no cost). Good luck!






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