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E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 04-10-2012, 10:14 AM
mValadez09 mValadez09 is offline
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Location: Denton, Texas
 
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Mein Auto: '95 325i
AC help please!

I have a leak in my 1995 325i somewhere, I took it to the VW Dealership and they refilled it completely and put dye in it, but it only lasted 2 weeks... We checked it out with the UV light and we noticed a water bottle in the passenger floor board had a lot of dye on it.. this got me thinking that its the expansion valve, but my question is can I just use stop leak or should I replace the valve..? Help me!
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  #2  
Old 04-10-2012, 10:40 AM
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Shigeta Shigeta is offline
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How come you took it to a VW dealership?
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Old 04-10-2012, 10:50 AM
mValadez09 mValadez09 is offline
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Because my boyfriend works there and he was able to fill it and add dye for free
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Old 04-10-2012, 11:05 AM
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hornhospital hornhospital is offline
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Mein Auto: 1995 318is / 1993 325is
Good answer!

Possible the lines into/out of the dash have a pinhole, or the coils inside the dash do. No other way the refrigerant could get in the passenger's compartment floorboard.
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Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
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1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
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Old 04-10-2012, 11:19 AM
mValadez09 mValadez09 is offline
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Lol how would I check that
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Old 04-10-2012, 11:45 AM
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hornhospital hornhospital is offline
D'oh, You kids!
Location: In the Grumpy Chair
 
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You checked for leaks everywhere else and didn't find any, right? You'd have to take the dash apart to check the coils and piping in the dash. It's an awful job. Seriously.
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Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot

Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?

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Old 04-10-2012, 01:49 PM
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drivinfaster drivinfaster is offline
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the metering block is pretty well burried in the system hvac box. no way to know for certain if it is the evaporator or the metring block without opening it up.

going to be expensive. bmw does not make this or the heater core easy to replace.

either one of these components or the related gaskets could be the cause of the refrigerant leak. i have no faith in refrigerant stop leak products as the systems are under extreme pressure and temperature differences within the system.

hopefully it will only be the gaskets, though.



df
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Old 04-10-2012, 02:34 PM
mValadez09 mValadez09 is offline
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Thanks y'all. I am not looking forward to this. Might just go without it /:
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