My 04' 530i engine runs as if it is missing but the dealer computer does not pull any miss fire codes...does anyone have a clue with what is really going on?

Asked by Dec 18, 2014 at 08:07 PM about the 2004 BMW 5 Series 530i

Question type: Maintenance & Repair

2 Answers

255

I don't have a good diagnosis, but I will tell you that I run a can of SeaFoam ($8.99 at most auto parts stores) to clean out my '06 550i a couple of times per year, especially on road trips. It could very well be an injector issue, and that it just needs a good cleaning. If you are savvy enough to remove the spark plugs, pouring some of the SeaFoam directly into the cylinders to soak the piston heads can really help clean things out. Just enough to coat the piston heads, and a little burst of air will help spread the cleaner into the cylinders. SeaFoam is pretty amazing stuff when used this way, along with running it through the gas tank. Good Luck, Patrick

Thanks pburke911.... I have tried SeaFoam.... not directly into the cylinders though. I was wondering if it could be a vacuum issue or a fuel pump issue or even a control mod issue?

Your Answer

Add photo

Related Questions

  • DSC Warning lamp and missing characters on the alphanumeric display 3 answers

    Just drove away in my first BMW and 10 miles down the road the DSC warning lamp illuminated and does not shut off despite trying to toggle the deactivation button. Also am noticing many characters "m...

    2002 BMW 5 Series 525i

    -

    Maintenance & Repair

  • Transmission Program Error 6 answers

    There was a "Transmission Program Error" on the dash indicator. The error went away, and returned. Accompanying the error, the car would not travel forward. The error went away, the car drove. I con...

    1994 BMW 5 Series 525i

    -

    Maintenance & Repair

  • Power seat. & wheel not working 9 answers

    The power seats and the power steering wheel quit working after I left the car wash. I think it is the fuse, but I can't find it. I heard this a ongoing to the common problem. Anyone know how to so...

    2003 BMW 5 Series 530i

    -

    Maintenance & Repair

  • What should i watch out for? 4 answers

    Hello everyone im new to this site so if im doing something wrong its because i dont know. I have just purchased a 2003 bmw 530i with 82,000 miles for $4,800 out the door. The car is in emaculate ...

    2003 BMW 5 Series 530i

    -

    Maintenance & Repair

  • Which year of 530i to buy? 29 answers

    Hello, I'm planning on buying a 530i within a few days and i have a few questions. Are there any major difference between the 2000-2004 E39s? At BMW of Newport (http://www.bmwofnewport.com) they have ...

    2003 BMW 5 Series 530i

    -

    Shopping & Pricing

Search BMW 5 Series Questions

BMW 5 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,820
#2 Michael Branan
Michael Branan
Reputation 730
#3 Robert Charlson
Robert Charlson
Reputation 670
View All

Related Models For Sale

Used BMW 3 Series
1,824 Great Deals out of 41,344 listings starting at $1,250
Used BMW 7 Series
202 Great Deals out of 5,886 listings starting at $1,600
Used Mercedes-Benz E-Class
762 Great Deals out of 23,231 listings starting at $1,600
Used BMW X5
621 Great Deals out of 17,222 listings starting at $2,788
Used BMW 6 Series
129 Great Deals out of 3,254 listings starting at $7,495
Used BMW M5
46 Great Deals out of 649 listings starting at $7,990
Used Mercedes-Benz C-Class
1,015 Great Deals out of 33,401 listings starting at $1,500
Used Audi A6
188 Great Deals out of 7,709 listings starting at $2,695
Used BMW M3
77 Great Deals out of 2,182 listings starting at $3,495
Used Mercedes-Benz S-Class
178 Great Deals out of 6,093 listings starting at $2,250
Used Audi A4
372 Great Deals out of 13,439 listings starting at $1,599
Used Honda Accord
1,262 Great Deals out of 78,832 listings starting at $969

Used Cars For Sale