I always Lock my 02 ML320 doors in the evening but when I go out in the morning they are unlocked. It must be unlocking itself in the night. Has anyone ever heard of this problem?
There is a problem with the rear doors locking and unlocking I never use them so I have locked them manually and they remain locked. I only mention this because perhaps it's related. It's a very mysterious situation. Thank you in advance for any help.