Hi All,

Just bought a 2017 GT. Been a dream for awhile and it finally happened. Question I have an I apologize if it's been answered but I couldn't find the thread.

When it rains my trunk gets soaked. Checked all the seals and everything looks good. Any ideas?

Did the car came with a fixed rear wing? in most cases it will leak from improper drain seals when one change from the active wind to a fixed wing. These drain path need to be blocked.

Check this thread for additional info: https://mbworld.org/forums/coupe-roa...-question.html

Thanks for the reply. No it's doesn't have a fixed wing just the factory pop up one.

Moist likely it’s coming from under the spoiler. I have a 2017 GT and recently removed the factory spoiler and had a fixed wing installed. The shop was told to put weather stripping around the base of the new wing, but that never got to the mechanic so mine leaked too. I’m having them remove it tomorrow and reinstall with weather stripping to fix it.

There are two black rubber drain hoses located at the base of the active rear wing. If the active wing assembly is removed and replaced with a fixed wing, these drain openings must be properly sealed.
Otherwise, rainwater flowing around the perimeter of the wing area can enter through these drains and leak into the trunk compartment.




The 2 pictures above show the 2 black drain pipes connected to the original active rear wing,


You will have to "plug" seal these drain pipes as shown in the pictures below: