Crazy antitheft alarm, 2002 C240
My car's alarm is acting up. It often goes on for no apparent reason, no one even close to the car or other rf/if signals generated nearby. Mostly happens within a few minutes of being armed, but that is not a rule. Sometimes happens after its been parked for hours. Went to the dealer, who attributed the problem to faulty keys. Ordered new keys for me which I received yesterday, problem persists. Problem happens even if I turn off the anti-towing feature. This is driving me nuts! Has anyone had problems like this before? Any ideas what could be causing it? Any help would be greatly appreciated.