My 3 button remote will not unlock the doors and trunk on some days. Other days it works fine. At times I have had to use the blade key to get into the car. No problem using the key to start the car. Is there a way to fix this key ?

Asked by mydans Mar 24, 2017 at 04:29 AM about the 2002 Mercedes-Benz C-Class

Question type: Maintenance & Repair

My 3 button remote will not unlock the doors and trunk on some days.
Other days it works fine.
At times I have had to use the blade key to get into the car.
No problem using the key to start the car.

Is there a way to fix this key ?

Grandma answered 7 years ago

May be the small battery inside the remote..I just take it into Batteries Plus and have them switch out the battery :)

Mark helpful

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My 3 button remote will not unlock the doors and trunk on some days. Other days it works fine. At times I have had to use the blade key to get into the car. No problem using the key to start the car. Is there a way to fix this key ?

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My 3 button remote will not unlock the doors and trunk on some days. Other days it works fine. At times I have had to use the blade key to get into the car. No problem using the key to start the car. Is there a way to fix this key ?

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