A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Climate control diagnostic problem

Thread Tools
 
Search this Thread
 
Old Oct 18, 2005 | 11:12 AM
  #1  
gregp1962's Avatar
Thread Starter
AudiWorld Member
 
Joined: Jun 2003
Posts: 269
Likes: 0
Default Climate control diagnostic problem

My heater is blowing cold air. I flushed the cooling system. I checked the diagnostic codes found in the tech sectionof this site.

The code it gave me is 22.1, which is "A/C Refrigerant High Pressure Switch, static open, *22.1" But, I don't understand the "A/C compressor switch off codes" on that page. Can anyone explain?
Reply
Old Oct 18, 2005 | 11:39 AM
  #2  
Joey T
Guest
 
Posts: n/a
Default Did you bleed the cooling system?

can you verify that the heater hoses are both hot?
Reply
Old Oct 18, 2005 | 12:17 PM
  #3  
gregp1962's Avatar
Thread Starter
AudiWorld Member
 
Joined: Jun 2003
Posts: 269
Likes: 0
Default Re: Did you bleed the cooling system?

Yes, I bled the system at the heater core inlet hose. Is that the only place to bleed it?
Reply
Old Oct 18, 2005 | 12:32 PM
  #4  
gregp1962's Avatar
Thread Starter
AudiWorld Member
 
Joined: Jun 2003
Posts: 269
Likes: 0
Default What is the 22.1 code?

So, what do you do when you have a 22.1 code?
Reply
Old Oct 18, 2005 | 01:07 PM
  #5  
BigEd's Avatar
Member
 
Joined: Nov 2003
Posts: 2,478
Likes: 0
Default

Yes, that's the only place (via bleeding hole). You didn't answer the question: both hoses hot?
Reply
Old Oct 31, 2005 | 10:36 AM
  #6  
gregp1962's Avatar
Thread Starter
AudiWorld Member
 
Joined: Jun 2003
Posts: 269
Likes: 0
Default Re: What is the 22.1 code?

Yes, both hoses are hot. But, both feel like they are not under pressure. Shouldn't they feel under pressure?
Reply
Old Nov 1, 2005 | 10:32 PM
  #7  
gregp1962's Avatar
Thread Starter
AudiWorld Member
 
Joined: Jun 2003
Posts: 269
Likes: 0
Default Re: Yes, that's the only place (via bleeding hole). You didn't answer the question: both hoses hot?

Yes, both hoses are hot. But, they don't feel like they're under pressure like they should when the system is up to temp.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Edward6420
A4 (B8 Platform) Discussion
3
Sep 3, 2012 07:38 AM
pianogrg3
A6 / S6 (C5 Platform) Discussion
4
May 5, 2008 07:33 AM
AudiDreamr
A4 (B5 Platform) Discussion
1
Aug 3, 2005 12:35 PM
Avantadrive
A4 (B6 Platform) Discussion
3
Aug 4, 2003 09:53 AM
tshapli
Audi 90 / 80 / Coupe quattro / Cabriolet
2
Sep 9, 2002 03:13 PM




All times are GMT -8. The time now is 09:58 AM.

story-0
New Audi A6 Allroad Is The Market's Coolest Wagon: 9 Things to Know

Slideshow: Audi's latest A6 Allroad gets RS-style fenders, real off-road hardware, and enough personality to stand out in a market obsessed with crossovers.

By Pouria Savadkouei | 2026-06-16 17:31:52


VIEW MORE
story-1
10 Strangest Audi Designs That Actually Made Production

Slideshow: 10 strangest Audi designs that actually made production

By Joe Kucinski | 2026-06-10 16:32:29


VIEW MORE
story-2
2027 Audi Q7 and SQ7: Audi Upgraded EVERYTHING!

Slideshow: Everything you need to know about the 2027 Audi Q7 and SQ7

By Michael S. Palmer | 2026-06-09 06:02:56


VIEW MORE
story-3
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!

Slideshow: Limited to just 499 units, the 987-horsepower halo car signals a new chapter for Audi performance.

By Verdad Gallardo | 2026-06-04 17:37:15


VIEW MORE
story-4
The Highs & Lows of Every Audi C-Class Generation

Slideshow: The highs and lows of every Audi C-Class generation.

By Joe Kucinski | 2026-05-27 16:05:50


VIEW MORE
story-5
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

People were more than happy to shell out big bucks for these cars.

By Brett Foote | 2026-05-27 15:32:23


VIEW MORE
story-6
10 Audi Features & Options We Miss the Most!

Slideshow: 10 Audi features and options we miss the most.

By Joe Kucinski | 2026-05-12 19:33:47


VIEW MORE
story-7
Audi Recreates Crazy-Looking Speed Record Breaker From 1935

Slideshow: Audi has recreated one of the wildest machines of the pre-war speed-record era, reviving a streamlined V16 racer that originally exceeded 200 mph in 1935.

By Verdad Gallardo | 2026-05-11 09:49:34


VIEW MORE
story-8
Coachbuilder Recreates the 1995 Audi TTS Concept

Slideshow: A Dutch coachbuilder has reimagined the original Audi TT by finishing what the 1995 concept only hinted at.

By Verdad Gallardo | 2026-05-05 15:17:58


VIEW MORE
story-9
Every Audi V10 Car Ranked!

Slideshow: Ranking every Audi V10 road car

By Joe Kucinski | 2026-04-29 16:11:56


VIEW MORE