Good thread Jay..... ours recently grenanded and I’ll be changing it soon. I’m excited to see what I find.

Anyone recommend on what to use to flush the condenser and lines?

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#dieselFLEET
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'97 E300
'99 E300

Got a pm today and thought I would share the question and response for the benefit of all.

"Hello there, I am working on a 1998 E300 turbo diesel AC system and have been searching and searching for info on the “updated dryer to condenser hose”. I see that much, but cannot find out how to tell if I need it or not, how does one tell if the line is the original or the updated line that will fit new accumulator/dryers?"

The hose p/n is 210-830-46-15

https://www.pelicanparts.com/More_Info/2108304615.htm?pn=210-830-46-15-MBZ&SVSVSI=3742&DID=9852

I would recommend replacing the hose if it looks original. It is exposed to the road and gets exposed to damage from road debris. My hose had damage so it was good that I went ahead and replaced it.

BTW the a/c was still ice cold when I sold the car to TimFreeh this summer...and I never touched it again after John charged it the first time.

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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech

I was digging through my parts orders I saved when I rebuilt the A/C on my old W210 (pre hurricane) - The part no. is definitely correct.

Im going with that if you have an original dryer fitted to the car - you need to replace it and as a matter of consequence - install the updated hose too as the coupler nuts are different.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

Jay-bob, I sent you that pm. Just got done replacing compressor, condenser, dryer, ev, and that condenser to dryer line. What a job! Just thought I would add that the dryer I got had the same size fittings as the dryer on my car, fairly certain the old dryer and that line were the originals. I got a kit from cool air parts that included the dryer.