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  #1  
Old 07-27-2011, 01:26 PM
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Replacing all the a/c O rings

1988 300E. I'm replacing all the black, original O rings with the new green style. I bought a kit from Phil at Fastlane for my car but it didn't include the O rings for the compressor flange. Anyone know where I can buy some? Thanks.

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  #2  
Old 07-27-2011, 08:39 PM
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You might call or email Phil to see if he has them by another part number. If not, Arizona Mobile Air will probably stock what you need.
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Old 07-27-2011, 09:21 PM
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My local Car Quest and Napa carry universal kits for about $8 that also include the round "springs" and such. So far one kit has been enough for two cars. But I have not tried the kits on the Benz.
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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car
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Old 07-27-2011, 09:24 PM
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Do they come with instructions?

If you have time can you give us a recap?

Thanks

glenmore
1991 300CE
1999, 2000 C280
2000 C230K
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  #5  
Old 07-27-2011, 09:37 PM
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Instructions? No. But the o-rings are pretty easy to do on the cars I have. I have NOT looked at the connections on a Benz. But if I assume they are they same then all one needs is an AC connection decoupler kit. They are plastic, and over-priced, tools that come in several sizes. They open up then close down on the tube. Then you push the tool into the coupling where it spreads a round spring that is holding the tube in place. Hard to describe and I do not have pics. Then the line backs out. Usually two o-rings per connection. Just VERY carefully remove the o-rings and replace. Best not to try to cut of the old ones, any metal nicks will be very bad.
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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car
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Old 07-27-2011, 09:43 PM
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Some vids:

http://www.youtube.com/watch?v=pflucFXDuCU

http://www.youtube.com/watch?v=0HTudC3JVWQ

If the Benz has no coupling locations, you do not need those plastic decouplers. Link for example of those below.

http://www.alibaba.com/product-gs/298310611/A_C_fuel_line_quick_disconnect.html
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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car
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  #7  
Old 07-27-2011, 10:13 PM
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My '96 doesn't use those spring couplers and neither did the '83 we had. Either the fittings were bolted flush with studs and nuts (TXV and compressor) or screwed together.
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Old 07-28-2011, 07:23 AM
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AC Delco seals for compressor

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