Join Date: Jun 2007
Location: Huntington Beach, CA
Re: Question about condensation on my 2010 mazda 3 s gt tail lights
Most of recent vehicle's taillight housing is designed that way ( ventilated whatever they want to call) to prevent condensation.
There is gasket between body and tail housing that is compressed to create seal.
If tail housing isn't tighten onto body enough, it may get week gasket compression, allow some water to leak in.
Or if gasket is worn somehow, same result.
Which part of tail housing you see condensation? If you see condensation only along certain lens edge, you may want to suspect housing/unit seal problem(seam crack).
Very slight condensation can occur in extreme climate, sudden temp shift, but if you see visible water sport inside, likely that's leak. Not normal.