2005 Mercedes Benz E500 03 e500 gas cap

2005 MERCEDES BENZ E500
63,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
E500
  • MEMBER
  • 1 POST
Anyone with an e-class mercedes ever heard of an error for replacing the gas cap? I am getting this message all of the time, even after replacing the gas cap. I have now started to notice it is being triggered by one of two things...either the fuel level is right in between 1/2 and 3/4 or when the A/C is on. Strange but true. Anyone familiar?
May 18, 2009 at 6:07 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
It sounds like there is an EVAP leak somewhere in the system. This is the system that prevents gas fumes from being lost into the atmosphere. What I recommend is having the EVAP system fogged. A mechanic will actuall force fog at a low pressure into the system. If there is a leak, the fog will come out and you will see where the problem is. Without having it fogged, you will go crazy tring to find the problem.
May 18, 2009 at 12:04 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.