Mercedes Benz SL550 computer thinks the trunk is open but its closed.

Asked by Apr 24, 2016 at 05:49 PM about the 2008 Mercedes-Benz SL-Class SL 550

Question type: Maintenance & Repair

Additionally, when I remotely lock the car I don't get the double beep.

3 Answers

13,345

Is the truck light ON? getting a 'trunk open' message..

2 of 2 people found this helpful.

Yes- it states "trunk open"

13,345

Possibility a sensor in the trunk that is malfunctioning as I know the 'boot lid' is closed. The power top will not work when this warning is active. Open the trunk lid and close it firmly then give it a push downward to be certain it's contacting the sensor. ( temporary solution) IF this works there are two tiny micro switches located inside of the rear door's lock.Those switches are monitoring the status of the door and the Cargo Area lights. I suggest inspecting them, I use a MB STAR C4 to scan for codes on RCM roof control modules along with computer DTC codes. The key fob can be checked after the "Truck Open" light is off.

1 of 1 people found this helpful.

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