Hello all.

I'm hoping some of you here would have had some experience with roof/seal leaks on these motors.

I have a 2007 3L V6 alphard which was fine and leak free (have had it in Skye in worse conditions back in September). I went further north last weekend and it was rather rainy as you could imagine. Slept in the van overnight and in the morning it was much damper than usual. I noticed the roof liner where the A pillar is had quite a large damp patch on both the passenger and driver sides.

I drove 3 hours back home with the heater and AC on full, which dried the liner out completely.

Today I went out to use the van after sitting for a week and noticed another damp patch. Seems to be happening on the passenger side only this time, but the driver side is dry this time.

Any ideas would be appreciated. Is this common? Where should I be looking to try fix this? By the looks of my picture, I am not sure if it is coming from inside the pillar, or if it's above the passenger door and running downwards.

Picture attached!

Thanks a lot

EDIT: My alphard is the one with the sunroof and moon roof, but I doubt this is anything to do with the sunroof because it is happening so far from it?

Edited yesterday at 02:39 PM1 day by TheRizzler
Adding useful info Re: sunroof

Damp meters aren’t too expensive, when we had issues with a motorhome body leak it indicated the area where the source was.

2 hours ago, TheRizzler said:

Hello all.

I'm hoping some of you here would have had some experience with roof/seal leaks on these motors.

I have a 2007 3L V6 alphard which was fine and leak free (have had it in Skye in worse conditions back in September). I went further north last weekend and it was rather rainy as you could imagine. Slept in the van overnight and in the morning it was much damper than usual. I noticed the roof liner where the A pillar is had quite a large damp patch on both the passenger and driver sides.

I drove 3 hours back home with the heater and AC on full, which dried the liner out completely.

Today I went out to use the van after sitting for a week and noticed another damp patch. Seems to be happening on the passenger side only this time, but the driver side is dry this time.

Any ideas would be appreciated. Is this common? Where should I be looking to try fix this? By the looks of my picture, I am not sure if it is coming from inside the pillar, or if it's above the passenger door and running downwards.

Picture attached!

Thanks a lot

EDIT: My alphard is the one with the sunroof and moon roof, but I doubt this is anything to do with the sunroof because it is happening so far from it?

Hi Dan,

You need to do some searches on this Forum.

It is not unknown for the drainage tubes from the sun roof gully to block.

How to clear them is covered in the Forum.

I would get a cleaning rod for the moon roof and sun roof front and back drains. They are about £2 in temu and clean them out first.

If they block he water overflows the pans the roofs sit in an can track anywhere

As said by James, the drain holes in the sunroof channels get blocked and the water then overflows,

Temu

Sorry Ali express