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      10-21-2020, 01:29 PM   #65
9M71
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Drives: 2018 F80 M3 | 6MT
Join Date: Jul 2019
Location: NYC

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Quote:
Originally Posted by Ferg View Post
Here is a question though. If the car is locked (battery is fine on the car) and you open the car only with the blade, the alarm goes off (both with the retrofit and OEM key); how do you drive the car without the dongle, or is that just not happening and the blade is only when the car battery is dead?
I think you need the dongle. If your dongle battery is dead and you unlock the car with the blade, you can still start the car if you hold the dongle close to the push start button. There should be a marking on the steering column.

Without the dongle, you are SOL.
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