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  #1  
Old 06-07-2004, 05:48 PM
DieselFitter's Avatar
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Location: Hoboken, NJ
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Hi-pressure A/C hose: repair or replace?

Dear Diesel Demons:

As some of you may remember, I had my 300D repaired after a collision in January and I'm glad I did. But now the time has come to finalize the A/C system and my mechanic says I need a new hi-pressure hose.

Some folks here have suggested (to others) repairing the hose at a local A/C shop but my mechanic says it's not a good idea to repair a 300 PSI hose - that it should be replaced. Can anyone confirm/deny this?

And is there anyone who can help me with a part #? I've got an '83 300D Turbo Diesel.

All best,

Diesel Fitter

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  #2  
Old 06-07-2004, 06:37 PM
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Location: Metro Detroit, Michigan
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Hi-pressure A/C hose

Quote:
Originally posted by DieselFitter
Dear Diesel Demons:
As some of you may remember, I had my 300D repaired after a collision in January and I'm glad I did. But now the time has come to finalize the A/C system and my mechanic says I need a new hi-pressure hose.
Some folks here have suggested (to others) repairing the hose at a local A/C shop but my mechanic says it's not a good idea to repair a 300 PSI hose - that it should be replaced. Can anyone confirm/deny this?
And is there anyone who can help me with a part #? I've got an '83 300D Turbo Diesel.
All best,
Diesel Fitter
FastLane Link = http://catalog.eautopartscatalog.com/mercedesshop/wizard.jsp?partner=mercedesshop&year=1983&make=MB&model=300-DT-001&category=R&part=A%2FC+Hose

1983 Mercedes Benz 300D Turbo
Part: A/C Hose Compressor to Condenser
Part #R1020-16281 A/C Hose ACM:Germany $50.51

Or is it one of the other high pressure hoses?
1983 Mercedes Benz 300D Turbo
Part: A/C Hose Condenser to Drier
Part #R1020-96037 A/C Hose $25.11

1983 Mercedes Benz 300D Turbo
Part: A/C Hose Reciever-Drier to Expansion Valve
Part #R1020-73619 A/C Hose Behr $105.30
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  #3  
Old 06-08-2004, 02:52 AM
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Location: So. California
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Depends on which hose you are talking about. Please describe from a standpoint of between which components AND perhaps color.
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84 300DT Puke Yellow. Totalled after 438,000
84 300DT Orient Red. 169,000 (actual mileage may vary)
2002 Explorer EB (wife's)
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  #4  
Old 06-08-2004, 10:47 AM
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Location: Hoboken, NJ
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A/C Hose

Dear Diesel Demons:

Thanks for all the replies.

It's a blue hose, runs along the passenger side of the vehicle, from the receiver-drier and into the firewall. I did some more research yesterday and it seems to be the the one described as running from the receiver-drier to the expansion valve.

Is the receiver-drier that object located behind the passenger-side headlight bezel, with the sight-glass in it? Or is that some other component?

All best,

Diesel Fitter
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  #5  
Old 06-08-2004, 01:55 PM
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Location: So. California
Posts: 744
Those blue hoses are high pressure hoses AND usually hold up pretty well. The general wear area for these hoses is under the battery tray (due to a leaking battery). They are made by Behr and are available aftermarket.

I just checked FASTLANE and the price for that Behr unit is the same unit cost as the factory part, $102.

I'm a little skeptical that the only hose that needs replacement is that hose. Your hoses are 20yo. I realize you had a collision. Al the O-rings seals are hardened up and I know you'd be much happier with a sealed up system.

You can use a rebuilder for a rebuilt hose, buy a factory hose from a dealer that offers a discount or buy a new one from FastLane.

You can pm me for more specific vendor information (I'd rather not post that info publically on Fastlane's nickel).
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84 300DT Puke Yellow. Totalled after 438,000
84 300DT Orient Red. 169,000 (actual mileage may vary)
2002 Explorer EB (wife's)
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  #6  
Old 06-08-2004, 02:04 PM
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"Is the receiver-drier that object located behind the passenger-side headlight bezel, with the sight-glass in it?"

Yes.

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