audi a4 2.0tdi 2005

sarahreade
0

Asked by Mar 17, 2013 at 01:49 PM about the 2005 Audi A4 2.0T

Question type: Maintenance & Repair

my audi has started belching out black soot like smoke when not excelerating like turbo lag.the engine
management light came on so we took it to a audi mechanis who changed the air flow sensor.it has
made no dirrerence and the light is back on a week later.any ideas please.

3 Answers

Js08016
47,985

Black smoke is an overly rich air to fuel mixture (too much fuel). Could be a very dirty air filter, bad oxygen sensor, bad fuel injector(s), bad fuel pressure regulator, or bad fuel pump. Those are the things I'd check first. HTH. -Jim

tenspeed
81,095

Check in over at AudiWorld.com and Audizine.com - there's not a lot of information on the Audi diesels in the USA yet. We're about to see many more small block turbo diesels in the near future but we're not there yet.

garageman
2,095

it might help if you know what codes were stored in the engine management computer,way too many codes and procedures to even begin to guess.

Your Answer

Add photo

Related Questions

  • 2005 Audi A4 burns oil 2 answers

    I have an 2005+ Audi A4 Cabriolet with 1.8 engine and it burns oil at 115,000 miles - about 600 miles now and I need a qt of oil. Will this be an expensive repair or should I be thinking of a new ca...

    2005 Audi A4 1.8T Cabriolet

    -

    Maintenance & Repair

  • 2005 audi a4 1.8T common problems? 1 answer

    I've been looking for an a4 for a while now and I finally found one that I'll most likely buy. But before I do I just wanted to know some common problems that I should be weary of. I know how exp...

    2005 Audi A4 1.8T

    -

    Maintenance & Repair

  • I have a Audi A4 and whenever I accelerate past 20mph it makes a humming noise....What could it be 2 answers

    I have a 2005 Audi A4 Quattro and its making a humming noise when I accelerate past 20mph

    2005 Audi A4 3.0 quattro Cabriolet

    -

    Maintenance & Repair

  • 2005 audi a4 1.8t 8 answers

    My car sounds like its rubbing in the front when I turn my wheels sharp at a slow rate of speed or when stopped and car is on. Also now started sputtering as of last night sounds like it wants to d...

    2005 Audi A4 1.8T

    -

    Maintenance & Repair

A4

Looking for a Used A4 in your area?

CarGurus has 11,839 nationwide A4 listings starting at $1,944.

ZIP:

Search Audi A4 Questions

Audi A4 Experts

#1 Deathjam4
Deathjam4
Reputation 1,930
#2 FordNut
FordNut
Reputation 740
#3 lukeyramone
lukeyramone
Reputation 330
View All

Related Models For Sale

Used BMW 3 Series"
1,318 Great Deals out of 35,421 listings starting at $2,150
Used Audi A6"
143 Great Deals out of 6,849 listings starting at $1,995
Used Audi S4"
41 Great Deals out of 1,014 listings starting at $4,590
Used Mercedes-Benz C-Class"
963 Great Deals out of 30,464 listings starting at $1,300
Used Audi A3"
84 Great Deals out of 7,685 listings starting at $3,900
Used BMW 5 Series"
750 Great Deals out of 20,830 listings starting at $1,995
Used Honda Accord"
935 Great Deals out of 76,497 listings starting at $1,400
Used Ford Mustang"
410 Great Deals out of 43,211 listings starting at $1,800
Used Audi A8"
57 Great Deals out of 1,908 listings starting at $3,988
Used Lexus IS 250"
291 Great Deals out of 5,606 listings starting at $5,900
Used Dodge Charger"
464 Great Deals out of 28,863 listings starting at $2,950
Used Audi A4 Avant"
21 Great Deals out of 294 listings starting at $4,495
Used Volkswagen Jetta"
530 Great Deals out of 29,658 listings starting at $1,000

Used Cars For Sale

2017 Audi A4 For Sale
4,616 listings
2016 Audi A4 For Sale
11 Great Deals out of 606 listings starting at $26,999
2015 Audi A4 For Sale
44 Great Deals out of 603 listings starting at $22,795
2014 Audi A4 For Sale
17 Great Deals out of 397 listings starting at $18,495
2013 Audi A4 For Sale
68 Great Deals out of 1,104 listings starting at $14,950