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#1
04-15-2016, 01:40 AM
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climate "temp tube" replacement - somebody tell me this is a bad idea...
...or an ok one. i discovered taking glove box out that my little temp hose section (the foam 5 inch section behind center dash) had totally disintegrated.
I replaced it with a little length of pex, just married to the two hard rubber hoses it connects, using 3M foil tape. Is this an ok solution? note: this picture is upside down (sorry) 
Last edited by kuene; 04-15-2016 at 01:50 AM. 
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#2
04-15-2016, 02:33 AM
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I think it's fine... it just needs to sample inside air to get a temperature reading. It wouldn't be my first choice but then I don't have any PEX laying around. If I recall correctly, I used a length of heater hose and it's worked out fine.
Right side up
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Current Stable
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#3
04-15-2016, 06:24 AM
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Weird. Looking on my phone, my first pic is correct, but on laptop it's upside down. Either way thanks! Not too concerned about how climate works (only heat works anyway) - just didn't want to create any kinds of hazard these materials back there in dash.
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#5
04-15-2016, 08:36 AM
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I'm wondering if it should have some foam pipe insulation over it. Since the original is made of insulating foam, it may have some effect on the temp sensor.
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Sam 84 300SD 350K+ miles ( Blue Belle )
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#6
04-15-2016, 08:40 AM
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It may, but then the original was also kind of a semi porous foam material - so seemed like a very odd choice since it connects two hard rubber pieces. Also, why would Mercedes use same foam material for evaporator drain hose into trans hump?
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#7
04-15-2016, 10:53 AM
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That will be just fine
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2004 F150 4.6L -My Daily 2007 Volvo XC70 -Wife's Daily 1998 Ford F150 -Rear ended 1989 J-spec 420SEL -passed onto its new keeper 1982 BMW 733i -fixed and traded for the 420SEL 2003 Volvo V70 5 Speed -scrapped 1997 E290 Turbo Diesel Wagon -traded for above 1992 BMW 525i -traded in 1990 Silver 300TE -hated the M103 1985 Grey 380SE Diesel Conversion, 2.47 rear end, ABS -Sold, really should have kept this one 1979 Silver 300D "The Silver Slug" -Sold
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#8
04-16-2016, 04:48 PM
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Almost anything would work, but I would be worried about that alum tape lasting long. No idea why the factory used foam tube other than cheap and saves weight. I used heater hose just because I had it and was the right size (5/8" I recall).
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1984 & 1985 CA 300D's 1964 & 65 Mopar's - Valiant, Dart, Newport 1996 & 2002 Chrysler minivans
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