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#1
07-17-2014, 09:27 AM
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Sunroof Pan Sealant
The sunroof pan in my '85 300TD is leaking tons of water every time it rains into my car. The drains are clear and it seems like there is a seam on the pan itself rusted through. I have a complete good pan, saved from my last parts car and I want to install the whole thing as a replacement. My recollection is that there is some sort of sealant between the pan and the underside of the roof of the car. Does anyone know what that sealant is?
Thanks, Shane
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1985 Euro 300TD Turbo 
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#2
07-17-2014, 11:11 AM
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If I remember correctly there isn't sealant there - there is a seal at the front (that people often struggle with 'cos they don't drop the pan) and a seal on the sliding roof at the back and then two bristly bits that allow water to drip into the pan which then should drain it to the four corners of the cabin (and hopefully out of the car!).
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1992 W201 190E 1.8 171,000 km - Daily driver 1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone 1965 Land Rover Series 2a Station Wagon CIS recovery therapy! 1961 Volvo PV544 Bare metal rat rod-ish thing I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior  Don't leave that there - I'll take it to bits!
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#3
07-17-2014, 11:15 AM
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I think he's talking about the butyl rubber that seals the actual pan itself where it is attached to the roof of the car. not the upper moving part, but the ENTIRE pan that's inside the car...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#4
07-17-2014, 11:21 AM
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Quote:
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1992 W201 190E 1.8 171,000 km - Daily driver 1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone 1965 Land Rover Series 2a Station Wagon CIS recovery therapy! 1961 Volvo PV544 Bare metal rat rod-ish thing I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior Don't leave that there - I'll take it to bits!
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#5
07-17-2014, 11:24 AM
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I think the entire roof of the car has a sound deadener that sandwitches between the SRpan, and the roof... I don't know if there is any glue there...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#6
07-17-2014, 11:31 AM
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Yeah there was a lot of closed cell foam between the head liner and the steel it was about 1cm thick (on the floor it was more of a bitmastic substance). The English translation of the FSM doesn't seem to contain instructions for removal and refitting of the tray - I'll fire up windows (wish me luck) and see if I can find it in my German FSM copy - sometimes there's more information there.
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1992 W201 190E 1.8 171,000 km - Daily driver 1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone 1965 Land Rover Series 2a Station Wagon CIS recovery therapy! 1961 Volvo PV544 Bare metal rat rod-ish thing I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior Don't leave that there - I'll take it to bits!
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#7
07-17-2014, 11:46 AM
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Thanks for the help! I looked at my replacement pan and it looks like a foam gasket that is thicker around the back of the pan than the front. I wonder if there is a part number for it.
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1985 Euro 300TD Turbo
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#8
07-17-2014, 12:29 PM
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Oh yeah - I should have just looked on EPC for a head refresher
Thin foam seal (I think the front just gets more crushed) for tray to roof part number is 1237820098 according to this => ELECTRIC SLIDING ROOF. Fits: 1980 Mercedes 240 D Sedan | Mercedes-Benz of South Atlanta I still haven't fired up windows - will do so this evening when I get the little ones in bed...
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1992 W201 190E 1.8 171,000 km - Daily driver 1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone 1965 Land Rover Series 2a Station Wagon CIS recovery therapy! 1961 Volvo PV544 Bare metal rat rod-ish thing I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior Don't leave that there - I'll take it to bits!
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#9
07-17-2014, 08:10 PM
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Ok, here is what you use.....go to the hardware store and buy the weather stripping used for doors, perfect fit!
 I had put the same thickness all the way around at first but it was too thick for the front, so I had removed it and used a thinner size. 
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