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

2.5tdi quattro not well !

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by jonba, Jan 13, 2013.

  1. jonba

    jonba New Member

    Joined:
    Jan 13, 2013
    Messages:
    2
    Likes Received:
    0
    Hi all ,
    have a 03 a4 avant 2.5 tdi quattro with 80000 on the clock which keeps going into limp mode (sounds like a tractor esp light on). Light goes out sometimes when driving and also after being switched off and then left for a couple of mins..Can seem to coast about for a few miles before it goes back into limp.

    Fault codes read 00550 017 sporadic fault. Any ideas of what i can check ,guys at the garage say the pump could be stuffed .

    cheers Jon
     
  2. quattrojames

    quattrojames Moderator
    Staff Member Moderator

    Joined:
    Mar 28, 2008
    Messages:
    13,988
    Likes Received:
    522
    Welcome to the forum, from the Rosstech wiki:

    00550 - Ross-Tech Wiki

    Fuel pumps errors can be an issue on the 2.5's. Most people source a refurb unit if it comes to it.

    [h=4]Possible Symptoms[/h]
    • Malfunction Indicator Light (MIL) ON
    • Loss of Power
    • Starting Problems
    • Transmission in Emergency Mode
    [h=4]Possible Causes[/h]
    • Fuel Tank incorrectly filled with Petrol or Biodiesel
    • Air/Water in Fuel System
    • Injection Timing incorrect
    • Electrical Fuel Pump faulty
    [h=4]Possible Solutions[/h]
    • Check Fuel Tank for Petrol and Biodiesel
      • Drain Tank and Fuel System
    • Check Fuel System for Air/Water
    • Check Fuel Supply and Return Lines for Blockage and Leaks
    • Check Electrical Fuel Pump
    • Check/Correct Injection Timing
      • Perform Basic Setting / Use TDI-Graph
     
  3. jonba

    jonba New Member

    Joined:
    Jan 13, 2013
    Messages:
    2
    Likes Received:
    0
    Up date on this... do not let wombats loose on your car "my brother is a vag expert blah blah " After vag test came back with its dirty fuel or stuffed pump had tank drained and new filter. Still no change so started looking for a pump and got some free advice given by diesel bob ("check timing fella computer test not accurate enough, timing needs to be checked properly.Someone has to get their hands dirty ") Found a small local independent chap who has had plenty of dealings with the 2.5 tdi .Timing checked ,garage who done the cambelt used tipex to mark the pullies !!! A4 now runs as sweet as a nut getting nearly 40mpg....Too many people will take your hard earned cash without a second thought so be careful
     
  4. Az

    Az Hard slammed!

    Joined:
    Jun 11, 2008
    Messages:
    1,027
    Likes Received:
    34
    Glad you got it sorted and it was a 'minor' issue. Definitely worth taking your motor to someone you can trust and who knows what they're doing, too many cowboys out there!
     
  5. robotplant

    robotplant Member

    Joined:
    Dec 4, 2011
    Messages:
    147
    Likes Received:
    2
    Nice to hear the 2.5tdi is back to normal jonba. Your quite right Az there are a lot of cowboys out there and it is harder to find someone who knows the v6 well as there aren't so many 2.5tdi's about.
     
  6. stu_m

    stu_m Well-Known Member
    VCDS Map User

    Joined:
    Oct 25, 2009
    Messages:
    1,442
    Likes Received:
    37
    I cant believe some "mechanics" think its ok to still use the old tipex on the cams method for the timing!!
     
  7. scottshere

    scottshere Member

    Joined:
    Dec 9, 2010
    Messages:
    339
    Likes Received:
    2

    40MPG from a .5 quattro? If i had known this was possible i would not have bought the 1.9
    Glad to see you finally have it running well now, not good when muppets give you the run around with **** workmanship
     
  8. scottshere

    scottshere Member

    Joined:
    Dec 9, 2010
    Messages:
    339
    Likes Received:
    2
    Im guessing when you have the cambelt changed you have to have it hooked up to Vagcom?
     
  9. quattrojames

    quattrojames Moderator
    Staff Member Moderator

    Joined:
    Mar 28, 2008
    Messages:
    13,988
    Likes Received:
    522
    Don't be too despondant, it's very much dependant on road type. I do permanent A/B roads and get 33mpg, if I drive like miss daisy then I get 37...
     
  10. scottshere

    scottshere Member

    Joined:
    Dec 9, 2010
    Messages:
    339
    Likes Received:
    2
    Thats still pretty decent. I get between 35 and 40 with the way i drive on A/B roads
     

Share This Page