The alarm in my car will always go off if I unlock the car with any key other than the one with the red dot. I have used the valet key, a key I had made at a local locksmith and a key ordered from Mercedes Benz (using the car's VIN) which allegedly is a master key (no red dot-- as that blank is, as I understand it, not made any more) -- so, how do I get the car to unlock (with any of those keys) without the alarm going off????

thanks in advance for your input.

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Dan

1986 560SL (52.5k miles) sold 11/24/04

1987 560sl (55.6k miles)