had my low pressure A/C hose replaced
#1
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Joined: Dec 2011
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From: Folsom, CA
2005 E55 AMG
had my low pressure A/C hose replaced
ok - so big whoop a/c was getting stale/warm so the low pressure hose was collapsing on itself when really hot - now it's seriously ICE COLD
I used to run the A/C at 72, now I run it at 76 because it's so damned cold!
anyhoo... during my fix, I mentioned to the SA that the A/C control unit would occasionally go a bit wonky - for example, that morning I took it in for service - both sides were automatically set to 57F and blasting FULL speed upon startup
he said they updated the firmware in the A/C control unit -
so is that a real thing?
I used to run the A/C at 72, now I run it at 76 because it's so damned cold!
anyhoo... during my fix, I mentioned to the SA that the A/C control unit would occasionally go a bit wonky - for example, that morning I took it in for service - both sides were automatically set to 57F and blasting FULL speed upon startup
he said they updated the firmware in the A/C control unit -
so is that a real thing?
#2
Super Member
Joined: Apr 2012
Posts: 887
Likes: 2
From: Northern California
2004 E55 AMG; 1991 Previa
ok - so big whoop a/c was getting stale/warm so the low pressure hose was collapsing on itself when really hot - now it's seriously ICE COLD
I used to run the A/C at 72, now I run it at 76 because it's so damned cold!
anyhoo... during my fix, I mentioned to the SA that the A/C control unit would occasionally go a bit wonky - for example, that morning I took it in for service - both sides were automatically set to 57F and blasting FULL speed upon startup
he said they updated the firmware in the A/C control unit -
so is that a real thing?
I used to run the A/C at 72, now I run it at 76 because it's so damned cold!
anyhoo... during my fix, I mentioned to the SA that the A/C control unit would occasionally go a bit wonky - for example, that morning I took it in for service - both sides were automatically set to 57F and blasting FULL speed upon startup
he said they updated the firmware in the A/C control unit -
so is that a real thing?
#3
Super Member
Joined: Apr 2012
Posts: 887
Likes: 2
From: Northern California
2004 E55 AMG; 1991 Previa
#5
Interesting. So for those with complaints of the W211 being a poor performer as far as HVAC, this could be the legitimate cause more than people chalking it up to design?
My A/C isn't bad but i know it can be better. I did just recover and recharge my system to spec a couple months ago with no major difference. I'm going to let my car run at A/C max for a while and start checking the suction hose.
My A/C isn't bad but i know it can be better. I did just recover and recharge my system to spec a couple months ago with no major difference. I'm going to let my car run at A/C max for a while and start checking the suction hose.
#6
Wow, this would explain a lot. Are dealers obligated to perform these TSBs if we ask them?
My mode selector quit working, too. The flap that closes off the vent in the footwell does not close. I had to stuff a rag in it to restore full flow to the upper vents.
My mode selector quit working, too. The flap that closes off the vent in the footwell does not close. I had to stuff a rag in it to restore full flow to the upper vents.
#7
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Joined: Apr 2012
Posts: 887
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From: Northern California
2004 E55 AMG; 1991 Previa
Yes they will conduct any TSB if you pay them. A TSB is simply a 'fix' that the dealer issued for defects which they knew/know about.
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#10
Hey Todd - Would you do me a favor and set the temperature to 70 * and measure the output temperature ? I'd be curious to see how cold your system gets.
My A/C system is good but not ice cold and I have been concerned about adding a KC to the mix.
My A/C system is good but not ice cold and I have been concerned about adding a KC to the mix.
#11
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Joined: Jan 2010
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From: SWFL
E55, E320 CDI , CLA250, Jag XJ Supersport
#12
Cij have you done a total evac of vacuum for 45 minutes to 30 inches and then refill freon?
The summer here in s. fl has been brutal with high 90s and extreme humidity and my ac was just horrible, I had the system flushed then vacuumed and refilled and my ac is a lot better although if the car has been in the sun all day it coould take time to cool but once cool its good, I also measured the output temp with a laser therm on the vent it was eventually 51* and I'm sure. If I would have kept the laser longer it could have gone down another degree or two, the outside temp was 97* that day so I can't really complain. I gotta say American cars have a kick *** cooling system so trying to get that out of our cars will not be possible lol
Want to add that I didn't change my dryer and maybe if I would have it would be even colder.
The summer here in s. fl has been brutal with high 90s and extreme humidity and my ac was just horrible, I had the system flushed then vacuumed and refilled and my ac is a lot better although if the car has been in the sun all day it coould take time to cool but once cool its good, I also measured the output temp with a laser therm on the vent it was eventually 51* and I'm sure. If I would have kept the laser longer it could have gone down another degree or two, the outside temp was 97* that day so I can't really complain. I gotta say American cars have a kick *** cooling system so trying to get that out of our cars will not be possible lol
Want to add that I didn't change my dryer and maybe if I would have it would be even colder.
Last edited by Hulk; 08-22-2014 at 09:50 AM.
#13
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From: Folsom, CA
2005 E55 AMG
surely I could have done a better job on parts pricing, but I just had another $3.2k of warranty work done as well... so I didn't flinch as much
#14
Super Member
Joined: Apr 2012
Posts: 887
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From: Northern California
2004 E55 AMG; 1991 Previa
LUCKY *******! Do you happen to have the part numbers for that hose? $300 for r134???
#17
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Joined: Apr 2012
Posts: 887
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From: Northern California
2004 E55 AMG; 1991 Previa
I think mine is having this issue with the collapsed hose. I evacuated and vacuumed for like 45 min to make sure no leaks were in the system. Unfortunately once we went to recharge the system I was able to squeeze in like 1lb of freon only. I think the specs say 2.3lbs or something. Car will be on the lift this weekend and will post pics if I do see something wrong.
Last edited by biggking; 08-22-2014 at 01:45 PM.
#19
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From: Folsom, CA
2005 E55 AMG
#20
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From: Folsom, CA
2005 E55 AMG
#22
Thats the high pressure side connect most likely. They are different sizes to make sure you dont try to fill the high pressure side
#23
Do any of you own an A/C vacuum pump ? I am considering this one : http://www.amazon.com/FJC-KIT6-Vacuu...DateDescending
Thoughts ?
Thoughts ?
#24
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From: Folsom, CA
2005 E55 AMG
the line replaced was # 211-830-08-15 and yes $129
also replaced:
(1x) sealing ring #013-997-44-45 $2.90
(1x) dehydrator #211-835-00-47 $107
(2x) seal ring, vlrub #140-997-06-45 $5.00
I checked my air vents with a laser temp meter - after about 10 minutes, the temps ranged from 32-37F (not kidding) - previously they were in the 50s
it's hella cold now
also replaced:
(1x) sealing ring #013-997-44-45 $2.90
(1x) dehydrator #211-835-00-47 $107
(2x) seal ring, vlrub #140-997-06-45 $5.00
I checked my air vents with a laser temp meter - after about 10 minutes, the temps ranged from 32-37F (not kidding) - previously they were in the 50s
it's hella cold now