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  1. #1
    Established Member Two Rings dantheman762's Avatar
    Join Date
    Nov 08 2007
    AZ Member #
    22441
    Location
    Toronto

    Air conditioning service port location???

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    Hey guys - hope someone can shed some light on this... My mechanic is tyring to fix a leak in my AC system. He charged it with Nitrogen and found the leak, but more of an issue now is the fact that he can't find the service port to charge the system with refrigerant. The info he has tells him that it should be right beside the filter/evap unit, but it's not there. He's looked all over and can only find the high-port. Anyway, Audi is famous for making mid-model year changes on the production line, so I'm thinking it's got to be somewhere - I just don't want him pulling the entire car apart to look for it - thought I'd throw him a bone. My car is a '96 A4QM with the 12-valve 2.8L V-6 with the AFC engine code.

    This issue is perfectly timed for the 30+ degree (90-ish F) weather we're having this week, not including the ridiculous humidity of the Great Lakes region! I need a second shower by the time I get to work - ridiculous! I've searched here and on the "other" Audi forum, but no luck... Thanks for reading.
    The left lane is for PASSING!

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  2. #2
    Veteran Member Four Rings
    Join Date
    Sep 15 2006
    AZ Member #
    11336
    My Garage
    97 A4 2.0TQM
    Location
    Rochester, NY

    Re: Air conditioning service port location???

    96 only has the high port

  3. #3
    Established Member Two Rings dantheman762's Avatar
    Join Date
    Nov 08 2007
    AZ Member #
    22441
    Location
    Toronto

    Re: Air conditioning service port location???

    Okay, thanks for confirming. Any tips/hints for re-charging the system with only the high-port? Thanks a lot for your help!
    The left lane is for PASSING!

    2016 RS7; Sepang Blue, B&O, carbon optics, TSW Bathurst 21x9, VCDS lowered
    2020 Toyota Tundra; TRD Off-Road, Crewmax, Premium Package (wife's vehicle)
    2006 Yamaha R6; full Yoshimura exhaust, Moore Mafia tuned.
    2019 Yamaha YZ250F; SSS full suspension revalve, No Toil SuperFlow airbox & filters, Cycra PowerFlow plastic, TP connected response map.
    B8 S4; Stage 1... Gone
    2010 Subaru STi; Stage 1... Gone
    B5 A4... Gone

  4. #4
    Veteran Member Three Rings audinutt's Avatar
    Join Date
    Jan 11 2007
    AZ Member #
    14809
    My Garage
    2001 A8l 2001 A4TQM Avant
    Location
    texas

    Re: Air conditioning service port location???

    Yep, you need a machine that will push the refrigerant in.
    If all he has is a gauge set you are SOL.

    -richard
    2001 Audi S8
    2011 Q7 TDI
    2001 A4 TQ Avant

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