Where is the low pressure port for a 1999 Audi A8? Even the AC Pros didn't know. Trying to recharge, but R134A pressure gauge won't fit on what I suspect is the low pressure port.

Asked by VeraKilani Aug 21, 2015 at 05:58 PM about the 1999 Audi A8 quattro AWD

Question type: Maintenance & Repair

Trying to save $$, I bought a recharge kit...a can filled with R134A with pressure gauge attached.  No info available about my 1999 A8.  I found what looks like the high and low pressure ports, but it will not fit the end of the hose.  The car frame is too close to the port, and it looks like it wouldn't really fit anyway.  Help.  Please.

4 Answers
1,360

Krankenwagen2010 answered 9 years ago

There isn't one and there is only the high side port if I'm not mistaken. I had done few at dealer when I was a beginner 10 years ago and I did not waste my time waiting for other techs to finish with the big machine. I got my self a low side port retrofit ( you know the fitting to retrofit r-12 to r-135 and I remove the high pressure switch and install screw Fitting there and with a 12 volt supply I will activate the ac clutch and then I was able to pump some good R134 juice into the system :-) Good luck

4 people found this helpful.
Mark helpful

Your Answer:

Related Questions

A8

Looking for a Used A8 in your area?

CarGurus has 32 nationwide A8 listings starting at $11,495.

Postal Code:

Shortcuts

Search Audi A8 Questions

CarGurus Experts

  • #1
    Deathjam4
    Reputation
    290
  • #2
    MiataInNorCAL
    Reputation
    170
  • #3
    deadcandance
    Reputation
    130
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Mercedes-Benz S-Class
12 Great Deals out of 224 listings starting at $8,887
Used BMW 7 Series
7 Great Deals out of 120 listings starting at $5,995
Used Audi A6
5 Great Deals out of 116 listings starting at $7,999
Used Lexus LS
25 listings starting at $11,900
Used Mercedes-Benz E-Class
40 Great Deals out of 504 listings starting at $5,700
Used BMW 5 Series
23 Great Deals out of 319 listings starting at $4,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.