1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

SMOKEY AVANT

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by banjo69, Jul 5, 2011.

  1. banjo69
    Offline

    banjo69 New Member

    Joined:
    Jun 23, 2011
    Messages:
    6
    Likes Received:
    0
    Hi, I have a 3.0tdi B7 avant. The problem is that after it warms up it belches black smoke when idiling or moving slowly in a line of traffic. When the car is driven normally it doesnt happen as I've driven behind it to check. Can any of you boffins advise me please.
    Cheers.
    #1
  2. bez101
    Offline

    bez101 Yorkshire & Humber Rep. Regional Rep

    Joined:
    Jul 8, 2008
    Messages:
    8,750
    Likes Received:
    496
    patches !
    #2
  3. banjo69
    Offline

    banjo69 New Member

    Joined:
    Jun 23, 2011
    Messages:
    6
    Likes Received:
    0
    Cheers mate, see this forum is just like the rest.
    #3
  4. sidibear
    Offline

    sidibear Looking for Zombies !! Staff Member Moderator

    Joined:
    Nov 5, 2008
    Messages:
    2,051
    Likes Received:
    436
    It might be the PCV valve, it diverts crankcase fumes to the inlet. Give it a clean.

    *Note, this is what it was on my V6 Cosworth, it might be the same*
    #4
  5. sidibear
    Offline

    sidibear Looking for Zombies !! Staff Member Moderator

    Joined:
    Nov 5, 2008
    Messages:
    2,051
    Likes Received:
    436
    A quick google found this, it might give you some pointers, if not, it will at least explain how its caused which may help you to determine whats up.

    Diesel Smoke tells YOU a Story…
    #5
  6. bez101
    Offline

    bez101 Yorkshire & Humber Rep. Regional Rep

    Joined:
    Jul 8, 2008
    Messages:
    8,750
    Likes Received:
    496
    same as the rest in you should have a search 1st
    i did and got quite a few results
    #6
  7. rowdyboy
    Online

    rowdyboy Member

    Joined:
    Mar 2, 2009
    Messages:
    803
    Likes Received:
    18
    Hi mate, don't confuse someone having a bit of humour with not being helpful. Bez101 has come up with some good info and advice in the past that's helped other members. It's just that there seems to be a lot of repetitive questions at the minute as people aren't searching previous threads or the Internet (I dont necessarily mean you). Maybe that frustration comes out in some replies.
    #7
  8. banjo69
    Offline

    banjo69 New Member

    Joined:
    Jun 23, 2011
    Messages:
    6
    Likes Received:
    0
    Thanks for the advice lads, much appreciated. As I am new to the forum and havent had a lot of time to spare a quick search didnt throw up any pointers so that is why I put a new post on. As I was worried that something major might be wrong I didnt see the funny side of bez's reply. Apologies if I was a bit sharp but I've come across too many smart arses on other forums who offer no worthwhile suggestions to a question but only post to make light of someone elses problems.
    Cheers.
    #8
  9. bez101
    Offline

    bez101 Yorkshire & Humber Rep. Regional Rep

    Joined:
    Jul 8, 2008
    Messages:
    8,750
    Likes Received:
    496
    try audizine you would love the info on there
    and on here a good sense of humor goes a long way
    #9
  10. ellwoodblues
    Offline

    ellwoodblues brokensprung burke unteknik

    Joined:
    Jun 6, 2011
    Messages:
    16
    Likes Received:
    0
    hi buddy, you prob find its a faulty egr valve(exhaust gas recirculation valve) had same on mine. try some unipart egr cleaner and a good hi revving run after...should clean it out if its not damaged...sometimes it gets gummed up and bends the butterfly..
    #10
  11. Chris79
    Offline

    Chris79 On my 3rd A4! RS4 next???

    Joined:
    Oct 24, 2005
    Messages:
    159
    Likes Received:
    0
    It's 1 or more injectors. ££££

    A close friend of mine had the exact same thing on his 3.0 tdi. You got a warranty?
    #11
  12. banjo69
    Offline

    banjo69 New Member

    Joined:
    Jun 23, 2011
    Messages:
    6
    Likes Received:
    0
    Thanks for all your help lads its much appreciated and apologies once again to Bez.
    #12
  13. rowdyboy
    Online

    rowdyboy Member

    Joined:
    Mar 2, 2009
    Messages:
    803
    Likes Received:
    18
    Did you find out what it was?
    #13
  14. Dazmo
    Offline

    Dazmo Active Member

    Joined:
    May 9, 2009
    Messages:
    1,768
    Likes Received:
    8
    :laugh:
    Fortunately for you aythreee has not replied yet.:laugh:

    Try adding 300ml of 2 stroke part synthetic oil to your fill up, will allow the fuel to burn cleaner and clean out your engine.
    #14
  15. banjo69
    Offline

    banjo69 New Member

    Joined:
    Jun 23, 2011
    Messages:
    6
    Likes Received:
    0
    Going to clean the egr over the weekend and also try the oil/fuel mix as someone else told me about it.
    #15
  16. rowdyboy
    Online

    rowdyboy Member

    Joined:
    Mar 2, 2009
    Messages:
    803
    Likes Received:
    18
    If you do a write up of how the EGR clean goes, where it is and any tips, it would be appreciated.
    #16

Share This Page