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  1. #1
    Join Date
    May 2009
    Location
    Maine
    Posts
    4

    Default How do I Recharge air conditioning?

    I have a xc70 (2000) and I'm trying to recharge the air conditioning.
    Can anybody explain me exactly where the valve is?

  2. #2
    Join Date
    Mar 2009
    Location
    San Diego/Flagstaff
    Posts
    352

    Default

    The AC valve is right in front of the ECU (car computer). So it's on the passenger side, near the front of the car, in front of the black box with the hose going to it. Should say something like "Tighten to 6 nM".
    2000 V70XC 2.4L Turbo - Emerald Green -245,000 miles

  3. #3
    Join Date
    Oct 2008
    Location
    Rockland County, NY
    Posts
    109

    Default

    "recharge"?

    The only reason the system wouldn't be functional, is if you have a leak, Freon does not evaporate .

    You should leak test/ drawn down the system & see if it hold proper vacuum before recharging..

    '98 V70XC/446AWHP/347WTq / M66 AWD/ Built RN Motor/ Dual VVT head/Enem Cams/TurboTuner ECU/1000cc injectors/ LGSpeed Header/ Custom Intake Manifold/PTE 6262bb + 3" DP/ FMIC/ Water Injection/ 3" intake pipe/ Greddy BOV/ Apexi AVC-R /Column 3-pod: AEM AFR meter/ Dual Boost/Pyrometer/ IPD Sways/ IPD endlinks/ Kaplhenke AWD Suspension/ 18" Motegi 116/ IPD BBK/ Rear Custom BBK/ 3" dual 14834 Magnaflows/ EST H/L's/ SharpHID Hi/Lo&Fogs 4500K/60-100 in 4.3sec 1/4 mile 110mph

  4. #4
    Join Date
    Nov 2006
    Location
    Savannah, GA
    Posts
    552

    Default

    The new recharge kits at the local parts houses have leak-stop built in, along with lubricant for the compressor. Perhaps the o-rings would benefit from a fresh charge with seal conditioner?

  5. #5
    Join Date
    Mar 2009
    Location
    San Diego/Flagstaff
    Posts
    352

    Default

    I think in general the stop-leak additives cause more havoc than they help. Eventually no amount of extra junk you pump in will be able to stop a leak in the evap or elsewhere.
    2000 V70XC 2.4L Turbo - Emerald Green -245,000 miles

  6. #6
    Join Date
    Apr 2003
    Location
    Devon PA
    Posts
    11,409

    Default

    NEVER put stop leak in a car you want to keep.

    Try to have at charged and put DYE in the system.
    It may hold charge for a month, 2 months or 6 months....
    or less than 24 hours!

    if it holds for a while but eventually goes down (it will go down as it already has), when it reaches the 1 month time, it's time to replace the evaporator.

  7. #7
    Join Date
    May 2009
    Location
    Maine
    Posts
    4

    Default

    the problem is that initially my AC works well, then after a while I only get regular air. Some other times I havent noticed this problem at all.
    I checked the freon in the system and it appears to be right.
    the only thing I know I should replace it's the thermostat so I was wondering if the intermittent lack of cold air could depend on that.
    Last edited by sirskkardi; 06-26-2009 at 03:41 PM.

  8. #8
    Join Date
    Apr 2003
    Location
    Devon PA
    Posts
    11,409

    Default

    Rechaging will probably not help.
    It may be OK for a short while but the odds of you needing a new AC evaporator is quite high.
    Each and every one fails (rusts out) at some point on these cars.
    (1995-2000)

  9. #9
    Join Date
    May 2009
    Location
    Maine
    Posts
    4

    Default

    the problem is that initially my AC works well, then after a while I only get regular air. Some other times I havent noticed this problem at all.
    I checked the freon in the system and it appears to be right.
    the only thing I know I should replace it's the thermostat so I was wondering if the intermittent lack of cold air could depend on that.

  10. #10
    Join Date
    Apr 2003
    Location
    Devon PA
    Posts
    11,409

    Default

    Then it may be the clutch on the compressor.
    Go to www.matthewsvolvosite.com for a DYI repair

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