I have a 2004 A4 1.8T Quattro and it seems to lost all of its power. I use to fly up a hill at 60-70 mph and now I'm lucky to hit 30 mph, what should I be looking for?


Asked by Apr 27, 2012 at 12:09 PM about the 2004 Audi A4 1.8T Quattro

Question type: Maintenance & Repair

7 Answers


Possibly a boost hose loose, a stuck open waste gate or a slipping clutch.

1 of 1 people found this helpful.

Because you did not mention it I assume that the "check engine" light is ot on. Check te waste gate controls for your turbo charger.

2 of 2 people found this helpful.

Manual or Automatic? PM me, I'll help you.

1 of 1 people found this helpful.

2 LarchmereImports, if wastgate is stuck, MIL is off...

1 of 1 people found this helpful.



Thanks guys for your inputs, I did find a broken port on the air intake tube down by the turbo, I repaired it with a strong silicone glue, hopefully it will hold. I drove the car and it has more power, but the turbo just doesn't "kick-in" like it use to at 3200rpm. Any ideas? Also it is an automatic transmission.

1 of 1 people found this helpful.

confirm that the waste gate is closing. It will fail to open and leak off your boost.

Your Answer


Looking for a Used A4 in your area?

CarGurus has 11,215 nationwide A4 listings starting at $1,500.


Audi A4 Experts

  • #1
  • #2
  • #3
    Tom Demyan
View All

Related Models For Sale

Used BMW 3 Series
1,124 Great Deals out of 32,824 listings starting at $1,000
Used Audi A6
125 Great Deals out of 6,512 listings starting at $1,995
Used Audi S4
49 Great Deals out of 1,661 listings starting at $3,995
Used Mercedes-Benz C-Class
598 Great Deals out of 25,535 listings starting at $1,995
Used Audi A3
103 Great Deals out of 4,877 listings starting at $3,250
Used BMW 5 Series
449 Great Deals out of 16,275 listings starting at $1,995
Used Honda Accord
1,045 Great Deals out of 60,748 listings starting at $999
Used Ford Mustang
715 Great Deals out of 38,357 listings starting at $895
Used Audi A8
71 Great Deals out of 2,078 listings starting at $2,450
Used Mercedes-Benz E-Class
462 Great Deals out of 19,736 listings starting at $1,400

Used Cars For Sale

2018 Audi A4 For Sale
2,927 listings starting at $35,191
2017 Audi A4 For Sale
39 Great Deals out of 2,163 listings starting at $24,998
2016 Audi A4 For Sale
11 Great Deals out of 232 listings starting at $21,488
2015 Audi A4 For Sale
21 Great Deals out of 607 listings starting at $17,429
2014 Audi A4 For Sale
74 Great Deals out of 1,248 listings starting at $12,995

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.