I replace my water pump on my 2004 audi a4, the air come out but blows cold air what could it be

Asked by Nov 09, 2014 at 08:27 AM about the 2004 Audi A4 1.8T Sedan FWD

Question type: Maintenance & Repair

4 Answers

12,940

you lost a lot of antifreeze when you replaced the pump. make sure the system is full, and all the air is out of it. If your system was working fine before the pump, that is likely what it is.

2 of 2 people found this helpful.
35

not a audi owner but it is a good general practice to replace the thermostat they get pretty hot when the pump goes and usually will stick open trying to let max water to the block

1 of 1 people found this helpful.

Both of those guys make excellent points. While I was looking for a heater hose routing for you car, to show you where hoses are supposed to be in case you accidentally got them swapped...I came across a website that claims to have the perfect answer to your question..but beware, they want a credit card number, claim they will not charge anything to it, a bunch of double-talk nonsense. https://www.tailplay.net/audi_a4 ..avoid it reeks of scam

11,465

I can help you solve this issue quick and easy. All audis have pressurized systems. Like all pressurized systems if there is air bubbles in it it does not function correctly. For some reason every time you take a vw or audi in for rad repair or pump replacement they forget to bleed your system. I am providing you with a picture That will show you the general location of the bleeder valve. BE carefull using the valve use only the proper tight fitting hex tool in it or you will never get it off again. To properly bleed your stem the car has to be running. Turn your heater to full heat and full blast. Crank open the bleeder valve and wait for all the bubbles to come out. You may have to bleed it twice to get it done properly. You can also take it to the vw dealer and tell them do do this for you since they neglected to do it while it was in for service if thats where you had the work done.I never trust my audi to the average joe blow mechanic because vw's and audis are alot more complicated then the average gm or ford car.

3 of 3 people found this helpful.

Your Answer

A4

Looking for a Used A4 in your area?

CarGurus has 12,122 nationwide A4 listings starting at $1,450.

ZIP:

Audi A4 Experts

  • #1
    Deathjam4
    Reputation
    3,890
  • #2
    Tom Demyan
    Reputation
    580
  • #3
    lukeyramone
    Reputation
    570
View All

Related Models For Sale

Used BMW 3 Series
1,117 Great Deals out of 34,033 listings starting at $1,209
Used Audi A6
144 Great Deals out of 7,665 listings starting at $900
Used Mercedes-Benz C-Class
730 Great Deals out of 25,987 listings starting at $1,995
Used Audi S4
23 Great Deals out of 1,566 listings starting at $3,850
Used Audi A3
116 Great Deals out of 6,121 listings starting at $2,990
Used BMW 5 Series
479 Great Deals out of 16,440 listings starting at $995
Used Honda Accord
818 Great Deals out of 88,083 listings starting at $1,444
Used Ford Mustang
341 Great Deals out of 42,379 listings starting at $1,488
Used Mercedes-Benz E-Class
532 Great Deals out of 21,629 listings starting at $1,999
Used Audi A8
36 Great Deals out of 1,566 listings starting at $3,900
Used Toyota Camry
1,061 Great Deals out of 77,381 listings starting at $1,100

Used Cars For Sale

2018 Audi A4 For Sale
7 Great Deals out of 5,651 listings starting at $31,445
2017 Audi A4 For Sale
36 Great Deals out of 1,012 listings starting at $19,500
2016 Audi A4 For Sale
15 Great Deals out of 233 listings starting at $18,970
2015 Audi A4 For Sale
30 Great Deals out of 773 listings starting at $15,500
2014 Audi A4 For Sale
26 Great Deals out of 703 listings starting at $12,977

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.