2007 2.5L Jetta running rough at idle


Asked by Dec 12, 2010 at 06:48 AM about the 2007 Volkswagen Jetta 2.5L

Question type: Maintenance & Repair

My 2007 2.5L Jetta (with 5-speed manual) runs very rough at idle (almost to the point of stalling) and the check engine light flashes when the motor is cold. Once the temperature gauge reaches 50% (normal operating temperature) and the car is driven around for a bit the car idles perfectly and the check engine light goes solid. The car run's fine if I keep the revs over 1,00 RPM. I've been told by my mechanic that I have a small vacuum leak but I assume that it's not the problem because theoretically that would mean that the car would run rough at all RPM's and temperatures but I'm not sure. What could be the cause of this? I worry because when I let it idle rough I can smell raw gas inside the car.

4 Answers


When was your last tune-up, timing belt change and check on the actual timing? -Amy


P.S. It could also be the vacuum system.


Honestly it's been at least 17,000 miles since the car had a tune-up. I've never personally had the car tuned up. I'm going through some rough times financially and I just haven't had the cash to get the things done that need to be done with the car. But if I need a tune up I need a tune-up. I'm worried about damaging my catalytic converter.

1 of 1 people found this helpful.

ignition coil pack is your problem.

1 of 1 people found this helpful.

Your Answer


Looking for a Used Jetta in your area?

CarGurus has 27,947 nationwide Jetta listings starting at $1,650.


Volkswagen Jetta Experts

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

Related Models For Sale

Used Volkswagen Passat
282 Great Deals out of 26,431 listings starting at $1,500
Used Honda Civic
351 Great Deals out of 51,867 listings starting at $1,200
Used Honda Accord
544 Great Deals out of 93,155 listings starting at $1,495
Used Volkswagen GTI
73 Great Deals out of 6,726 listings starting at $900
Used Volkswagen Golf
73 Great Deals out of 4,657 listings starting at $900
Used Toyota Camry
780 Great Deals out of 71,441 listings starting at $175
Used Toyota Corolla
635 Great Deals out of 65,975 listings starting at $1,599
Used BMW 3 Series
902 Great Deals out of 32,972 listings starting at $1,000
Used Audi A4
191 Great Deals out of 12,335 listings starting at $1,700
Used Nissan Altima
735 Great Deals out of 67,197 listings starting at $750
Used Mazda MAZDA3
197 Great Deals out of 25,832 listings starting at $1,900
Used Ford Focus
391 Great Deals out of 70,812 listings starting at $999
Used Ford Fusion
615 Great Deals out of 59,585 listings starting at $2,300

Used Cars For Sale

2018 Volkswagen Jetta For Sale
11,883 listings starting at $11,380
2017 Volkswagen Jetta For Sale
52 Great Deals out of 2,821 listings starting at $9,859
2016 Volkswagen Jetta For Sale
35 Great Deals out of 1,654 listings starting at $6,987
2015 Volkswagen Jetta For Sale
114 Great Deals out of 3,604 listings starting at $6,495
2014 Volkswagen Jetta For Sale
88 Great Deals out of 2,306 listings starting at $5,495

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.