Sunroof Technicalities

rosswalki · 14th October 2015, 14:24

Hi all, not sure if this is the correct section for this thread but it is a sort of technical question.

Here goes...

I have had a water ingress problem (sunroof drains) which has now been resolved. This was done by clearing the drain tubes and sealing the joints.

I tested the operation of said tubes last night by pouring water (to simulate rain) into the gap around the sunroof (with it closed) to make sure all was clear and I have disloged any blockages. This was all fine and drain tubes working well.

Now, when I checked, I had water in the rear passenger footwell again... A bit of.investigation and by dropping the headlining I found that there was a leak from the sunroof casette itself. It is leaking from a white plastic box style thing onto which attaches the drain for the NSR. Now I don't know if I overdid it with the water (wanted to make sure it was fine) or that I have a problem with the casette.

My question is, how much water is the sunroof casette and subsequent drains designed to cope with? And what happens if the water level exceeds this?

The car was parked with the NSR downhill so most of the water would have gone to this corner. Just want it right before I put it back together and have to end up takjng the carpet out again...

Thanks in advance all!

Ross

Rick-sta · 14th October 2015, 15:00

Hi Ross,

Can you see exactly where the water is coming from? Is it coming from where the rubber drain tube attaches to the white plastic bit on the sunroof cassette, which would indicate the pipe is not tight enough?

Could fitting a jubilee clip around the rubber drain tube where it attaches to the white plastic outlet on the cassette prevent water leaking from there?

rosswalki · 15th October 2015, 06:50

Hi Rick, thanks for your response, the water is coming out of the seam between the metal cassette and a white plastic box with a spout which the drain tube attaches to. It appears to the the seam. This being the case, do you think I will have to remove the cassette to repair or seal it or just seal the outside?

Thanks for your help, Ross

14th October 2015, 14:24	#1
rosswalki Regular poster MG ZT 190+, MG ZT 190 SE Join Date: Apr 2014 Location: Harrogate Posts: 72 Thanks: 7 Thanked 7 Times in 7 Posts	Sunroof Technicalities Hi all, not sure if this is the correct section for this thread but it is a sort of technical question. Here goes... I have had a water ingress problem (sunroof drains) which has now been resolved. This was done by clearing the drain tubes and sealing the joints. I tested the operation of said tubes last night by pouring water (to simulate rain) into the gap around the sunroof (with it closed) to make sure all was clear and I have disloged any blockages. This was all fine and drain tubes working well. Now, when I checked, I had water in the rear passenger footwell again... A bit of.investigation and by dropping the headlining I found that there was a leak from the sunroof casette itself. It is leaking from a white plastic box style thing onto which attaches the drain for the NSR. Now I don't know if I overdid it with the water (wanted to make sure it was fine) or that I have a problem with the casette. My question is, how much water is the sunroof casette and subsequent drains designed to cope with? And what happens if the water level exceeds this? The car was parked with the NSR downhill so most of the water would have gone to this corner. Just want it right before I put it back together and have to end up takjng the carpet out again... Thanks in advance all! Ross

14th October 2015, 15:00	#2
Rick-sta This is my second home MG ZT 2.0 CDTI+ in Typhoon, MG TF 135 in Typhoon & Rover 75 Connoisseur CDTI SE in Pearl Black Join Date: Oct 2012 Location: Norfolk Posts: 7,537 Thanks: 2,718 Thanked 2,827 Times in 1,462 Posts	Hi Ross, Can you see exactly where the water is coming from? Is it coming from where the rubber drain tube attaches to the white plastic bit on the sunroof cassette, which would indicate the pipe is not tight enough? Could fitting a jubilee clip around the rubber drain tube where it attaches to the white plastic outlet on the cassette prevent water leaking from there? __________________ How to retrofit Cruise Control on a diesel with no OEM wiring in place: Link How to retrofit heated electric memory seats with no OEM wiring in place: Link How to operate FBH and ATC via text Link How to restore cloudy projector headlights Link

15th October 2015, 06:50	#3
rosswalki Regular poster MG ZT 190+, MG ZT 190 SE Join Date: Apr 2014 Location: Harrogate Posts: 72 Thanks: 7 Thanked 7 Times in 7 Posts	Hi Rick, thanks for your response, the water is coming out of the seam between the metal cassette and a white plastic box with a spout which the drain tube attaches to. It appears to the the seam. This being the case, do you think I will have to remove the cassette to repair or seal it or just seal the outside? Thanks for your help, Ross