2010 Mazda5/Premacy Sliding Door Leak

Hi, we bought a 2010 (New Shape) Mazda5 back at the end of March. First owner in NZ and very tidy.

With the winter weather now in full swing I have noticed water building up on the bottom rubber sliding door seal on one side only.

I cant see any leaks around the top where water could be getting in and think I have narrowed it down to the inner door.

I think water may be tracking along the wire cover and building up. Can some advise if there's a seal in the door that may have given out. Door drains are clear and working as they should.

Has anyone had this issue before?

Any help would be much appreciated.

Photo below.

2015 Mazda 5 Sport
Can you pull the step trim piece off and see if it shows the source of the leak or at least the affected area? Does the liquid soapy? If it does then there may be a leak from the windshield wiper fluid tube joint in the ceiling. If it is just water, and the wet portion extend to the back, then you may wish to check the hatch on the passenger side. I would also check the spare tire wheel well too if the hatch is leaking.

Does the car come with a sunroof? If it does, I would check the drainage tubes on the passenger side. That's another potential source of leakage if they are blocked.
Last edited: