What does the maintenance code "500" mean on my 1999 ml 320?

Asked by eddiegutl Oct 22, 2016 at 01:23 PM about the 1999 Mercedes-Benz M-Class ML 320 4MATIC

Question type: Maintenance & Repair

Had to replace gas cap with a generic replacement.  I feel that is the reason
the "check engine" light goes on.  Now, maintenance code "500" lights up.  
Why?

1 Answer
1,280

Evilgenius68 answered 8 years ago

Generic caps usually don't seal properly and will cause Evap codes . Try a speed cap .they are quick fill ( no need to take off to put fuel in ) so far in haven't had any complaints or codes to clear from customers .Good luck

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Mercedes-Benz M-Class Questions

CarGurus Experts

  • #1
    jihadghazali
    Reputation
    1,420
  • #2
    wellness
    Reputation
    1,200
  • #3
    snowseal19
    Reputation
    1,120
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Mercedes-Benz E-Class
30 Great Deals out of 496 listings starting at $5,700
Used Mercedes-Benz S-Class
15 Great Deals out of 227 listings starting at $8,977
Used BMW X5
47 Great Deals out of 1,134 listings starting at $3,995
Used Mercedes-Benz C-Class
98 Great Deals out of 1,455 listings starting at $3,799
Used Mercedes-Benz G-Class
10 Great Deals out of 166 listings starting at $34,800
Used Lexus RX
39 Great Deals out of 845 listings starting at $3,995
Used Mercedes-Benz SL-Class
12 Great Deals out of 126 listings starting at $13,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.