Mercedes Benz SL550 computer thinks the trunk is open but its closed.
Is the truck light ON? getting a 'trunk open' message..
Yes- it states "trunk open"
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.
Looking for a Used SL-Class in your area?
CarGurus has 3,094 nationwide SL-Class listings starting at $3,500.
Search Mercedes-Benz SL-Class Questions
Mercedes-Benz SL-Class Experts